feat: Add Enterprise App Protection extension with settings and popup UI

- Implement manifest.json for Chrome extension with necessary permissions and background scripts.
- Create options.html for user settings including Google Safe Browsing API key, domains database URL, update interval, and warning message template.
- Develop options.js to handle loading and saving settings using Chrome storage.
- Design popup.html to display suspicious links and provide options to update the database and manage domains.
- Implement popup.js to manage interactions in the popup, including updating the database and resetting the suspicious links counter.
- Add testsite.html for dynamic testing of the extension with both official and fake links.

README.md

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+# Enterprise App Protection
+
+## 🔍 What This Extension Does
+
+Protect yourself and your organization from phishing attacks that impersonate common enterprise applications like DocuSign, Salesforce, Microsoft 365, and hundreds more. This extension:
+
+- ✓ **Automatically scans links** in your browser and emails in real time
+- ✓ **Alerts you** when a link claims to be from a trusted enterprise app but leads to an unofficial domain
+- ✓ **Uses Google Safe Browsing API** to detect phishing and malware threats beyond known fake domains
+- ✓ **Maintains an up-to-date database** of legitimate enterprise application domains
+- ✓ **Detects dynamically added links** (e.g., in Outlook Web, Teams, SharePoint)
+- ✓ **Works with 150+ enterprise applications**
+- ✓ **Functions completely offline** after initial setup (except for Safe Browsing checks)
+
+![Enterprise App Protection Screenshot](https://raw.githubusercontent.com/rrpbergsma/EnterpriseAppProtection/refs/heads/main/EnterpriseAppProtection.png)
+
+---
+
+## ⚙️ How It Works
+
+When you visit a webpage or open an email, the extension:
+1. **Scans all links** and detects if any enterprise applications (like "DocuSign" or "Salesforce") are mentioned
+2. **Verifies if the associated links actually go to official domains**
+3. **Checks Google Safe Browsing** to detect malware and phishing links not in its internal database
+4. **Detects links inside dynamically loaded content** (like Outlook Web, Microsoft Teams, SharePoint)
+5. **Shows a clear warning** if a potential impersonation attempt is detected
+
+---
+
+## 🔐 Privacy & Security
+
+- **Zero Data Collection:** This extension does not collect, store, or transmit any personal data, browsing history, or email content.
+- **Completely Offline:** After initial installation, all domain checks are performed locally on your device.
+- **No Cloud Processing:** All link analysis happens directly in your browser.
+- **Uses Google Safe Browsing API:** Checks URLs against Google’s real-time phishing and malware database.
+- **Open Source:** All code is available for review.
+
+---
+
+## 🚫 What This Extension Doesn't Do
+
+- ❌ Does **NOT** access, read, or store your email content or attachments.
+- ❌ Does **NOT** track your browsing history.
+- ❌ Does **NOT** require an account or registration.
+- ❌ Does **NOT** send any data back to our servers.
+- ❌ Does **NOT** modify or alter any content—it only shows warnings.
+- ❌ Does **NOT** prevent you from visiting any websites.
+
+---
+
+## 🔹 Trusted & Blocked Domains
+
+- **Trusted Domains:** These domains are always allowed and will not be flagged.
+- **Blocked Domains:** These domains will always be marked as unsafe.
+
+To modify trusted/blocked domains:
+1. Open the **extension options page**.
+2. Add or remove domains under **"Trusted Domains"** or **"Blocked Domains"**.
+3. Click **"Update Database"** to apply changes.
+
+---
+
+## 🔍 Google Safe Browsing API
+
+This extension integrates with **Google Safe Browsing** to detect additional phishing and malware sites.  
+If Google **does not recognize a site as unsafe**, it will not be flagged unless it is in the **blocked domains list**.
+
+🔹 **Report new phishing domains to Google** → [Submit a phishing site](https://safebrowsing.google.com/safebrowsing/report_phish/)
+
+---
+
+## 👥 Perfect For
+
+- **Business professionals** who regularly use enterprise applications
+- **IT security teams** looking to protect their organizations
+- **Anyone concerned about phishing attacks** targeting business services
+- **Organizations using multiple cloud-based enterprise applications**
+- **Microsoft 365 users** (Outlook, Teams, SharePoint) who want extra security
+
+---
+
+## 🖥️ System Requirements
+
+- **Google Chrome 88+ / Microsoft Edge 88+**
+- **Works with Microsoft Outlook Web, Teams, and SharePoint**
+- **Internet connection required for Safe Browsing checks (optional)**
+
+---
+
+## 🛠️ Troubleshooting
+
+### **❓ Why is a suspicious site not flagged?**
+- It might **not be in the `domains.json` database**.
+- Google Safe Browsing **does not recognize it as a phishing site**.
+- The domain may be a **legitimate subdomain** of an official service.
+
+### **❓ Why is a link incorrectly flagged?**
+- If the link **contains a word matching an app name** but is not actually phishing.
+- You can add the domain to **"Trusted Domains"** in the options page.
+
+---
+
+## 🔥 Latest Updates
+### ✅ **Final Version Features**
+- **⚡ Dynamic Link Scanning:** Detects phishing links inside emails, Teams, and SharePoint without reloading the page.
+- **🎯 Google Safe Browsing Support:** Detects additional phishing sites beyond known fake domains.
+- **🛡️ Improved Matching:** Ensures only full app names trigger warnings.
+- **🚀 Optimized Performance:** No duplicate warnings, reduced false positives.
+- **📡 No More Debugging Logs:** Production-ready version with clean console logs.
+
+---
+
+## Screenshots
+
+### 🔧 Settings Page
+The settings page allows users to configure the Google Safe Browsing API key and manage trusted and blocked domains. Users can enter domains manually to whitelist or blacklist specific sites.
+
+![Settings Page](https://raw.githubusercontent.com/rrpbergsma/EnterpriseAppProtection/refs/heads/main/SettingPage.png)
+
+### ⚠️ Extension Popup
+The extension popup provides real-time feedback when navigating websites. If a domain is flagged as unsafe, the user receives an alert, helping to prevent phishing and malicious activity.
+
+![Extension Popup](https://raw.githubusercontent.com/rrpbergsma/EnterpriseAppProtection/refs/heads/main/ExtensionPopup.png)
+
+---

background.js

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+// background.js
+
+console.log("Background service worker loaded");
+
+let domainsDB = {};
+
+async function updateDomainsDB() {
+  chrome.storage.local.get(["domainsDBURL"], async function (result) {
+    const domainsDBURL = result.domainsDBURL || "https://raw.githubusercontent.com/rrpbergsma/EnterpriseAppProtection/refs/heads/main/domains.json";
+    console.log("updateDomainsDB: Starting update from URL:", domainsDBURL);
+    try {
+      const response = await fetch(domainsDBURL);
+      if (!response.ok) {
+        console.error("updateDomainsDB: Fetch failed with status", response.status, response.statusText);
+        return;
+      }
+      domainsDB = await response.json();
+      chrome.storage.local.set({
+        domainsDB: domainsDB,
+        lastUpdate: Date.now()
+      }, () => {
+        console.log("updateDomainsDB: Database updated successfully at", new Date().toLocaleString());
+      });
+    } catch (error) {
+      console.error("updateDomainsDB: Failed to update domains database:", error);
+    }
+  });
+}
+
+// Run updates when the extension is installed or started
+chrome.runtime.onInstalled.addListener(() => {
+  console.log("Extension installed");
+  updateDomainsDB();
+});
+
+chrome.runtime.onStartup.addListener(() => {
+  console.log("Service worker started");
+  updateDomainsDB();
+});
+
+// Periodic update based on UPDATE_INTERVAL (in hours)
+setInterval(() => {
+  chrome.storage.local.get(["updateInterval"], function (result) {
+    const updateInterval = result.updateInterval || 24;
+    console.log("Periodic update triggered");
+    updateDomainsDB();
+  });
+}, 3600000);
+
+// Listen for manual update messages (e.g., from the popup)
+chrome.runtime.onMessage.addListener((message, sender, sendResponse) => {
+  console.log("onMessage: Received message:", message);
+
+  if (message.action === "updateDB") {
+    console.log("onMessage: Manual update triggered via Update Now button");
+    updateDomainsDB().then(() => {
+      console.log("onMessage: Manual update completed");
+      sendResponse({ status: "updated" });
+    });
+    return true; // Keep message channel open for async response
+  }
+
+  if (message.action === "updatePopup") {
+    // Store flagged links and update the total suspicious count
+    chrome.storage.local.get(["totalSuspiciousLinks"], (result) => {
+      let totalCount = result.totalSuspiciousLinks || 0;
+      totalCount += message.flaggedLinks.length; // Add new links found in this session
+
+      chrome.storage.local.set({
+        flaggedLinks: message.flaggedLinks,
+        totalSuspiciousLinks: totalCount
+      }, () => {
+        console.log(`Updated totalSuspiciousLinks: ${totalCount}`);
+      });
+    });
+  }
+
+  if (message.action === "getSuspiciousLinks") {
+    // Retrieve both flagged links and total suspicious link count
+    chrome.storage.local.get(["flaggedLinks", "totalSuspiciousLinks"], (data) => {
+      sendResponse({
+        count: data.totalSuspiciousLinks || 0,
+        links: data.flaggedLinks || []
+      });
+    });
+    return true; // Keep message channel open for async response
+  }
+});
+
+// Debug Mode: Keep-alive mechanism for testing
+const DEBUG_MODE = false; // Set to 'true' for testing
+
+if (DEBUG_MODE) {
+  chrome.alarms.create("keepAlive", { delayInMinutes: 0.1, periodInMinutes: 0.1 });
+  chrome.alarms.onAlarm.addListener((alarm) => {
+    if (alarm.name === "keepAlive") {
+      console.log("keepAlive alarm triggered, service worker is active");
+    }
+  });
+}

config.js

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+// config.js
+const CONFIG = {
+  // URL to fetch the approved enterprise domains list
+  DOMAINS_DB_URL: 'https://raw.githubusercontent.com/rrpbergsma/EnterpriseAppProtection/refs/heads/main/domains.json',
+  // Update interval in hours
+  UPDATE_INTERVAL: 24,
+  // Warning message template for suspicious links
+  WARNING_TEMPLATE: "Warning: This link claims to be {app} but goes to an unofficial domain."
+};

content.js

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+// content.js
+
+let SAFE_BROWSING_API_KEY = "";
+let domainsDB = {};
+let trustedDomains = [];
+let blockedDomains = [];
+let warningTemplate = "Warning: This link claims to be {app} but goes to an unofficial domain.";
+let isDomainsLoaded = false;
+
+// ✅ Get the top-level domain (TLD)
+function getTopLevelDomain(hostname) {
+    const domainParts = hostname.split(".");
+    const knownTLDs = ["co.uk", "com.au", "gov.uk", "edu.au"];
+
+    if (domainParts.length > 2) {
+        const lastTwoParts = domainParts.slice(-2).join(".");
+        if (knownTLDs.includes(lastTwoParts)) {
+            return domainParts.slice(-3).join(".");
+        }
+    }
+    return domainParts.slice(-2).join(".");
+}
+
+// ✅ Check if a domain is valid
+function isValidDomain(domain, validDomains, trustedDomains) {
+    const extractedTLD = getTopLevelDomain(domain);
+
+    if (trustedDomains.includes(domain) || trustedDomains.includes(extractedTLD)) {
+        return true; // User has explicitly marked this domain as safe
+    }
+
+    return validDomains.some(validDomain => {
+        const validTLD = getTopLevelDomain(validDomain);
+        return extractedTLD === validTLD;
+    });
+}
+
+// ✅ Check Google Safe Browsing API for dangerous links
+async function checkGoogleSafeBrowsing(url) {
+  console.log("🔍 Checking Google Safe Browsing for:", url);
+
+  if (!SAFE_BROWSING_API_KEY) {
+      console.warn("⚠️ API key is not set. Skipping Safe Browsing check.");
+      return false;
+  }
+
+  const response = await fetch(`https://safebrowsing.googleapis.com/v4/threatMatches:find?key=${SAFE_BROWSING_API_KEY}`, {
+      method: "POST",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify({
+          client: { clientId: "enterprise-app-protection", clientVersion: "1.0" },
+          threatInfo: {
+              threatTypes: ["MALWARE", "SOCIAL_ENGINEERING"],
+              platformTypes: ["ANY_PLATFORM"],
+              threatEntryTypes: ["URL"],
+              threatEntries: [{ url }]
+          }
+      })
+  });
+
+  const data = await response.json();
+  console.log("🔹 Google Safe Browsing API Response:", data);
+  return data.matches ? true : false;
+}
+
+// ✅ Scan page content for suspicious links
+function analyzePageContent() {
+  if (!isDomainsLoaded || !domainsDB || Object.keys(domainsDB).length === 0) {
+      console.warn("⚠️ domainsDB is not ready yet. Skipping analysis.");
+      return;
+  }
+
+  const links = document.querySelectorAll("a:not(.checked-by-extension)");
+  let newFlaggedLinks = new Set();
+
+  links.forEach(link => {
+      try {
+          // ✅ Validate the URL before using it
+          let url;
+          try {
+              url = new URL(link.href);
+          } catch (e) {
+              console.warn("⚠️ Skipping invalid URL:", link.href);
+              return; // Stop processing this link
+          }
+
+          const domain = url.hostname.toLowerCase();
+          const linkText = link.innerText.trim();
+
+          // ✅ Mark link as processed
+          link.classList.add("checked-by-extension");
+
+          // ✅ Skip trusted domains
+          if (trustedDomains.includes(domain) || trustedDomains.includes(getTopLevelDomain(domain))) {
+              console.log("Skipping trusted domain:", domain);
+              return;
+          }
+
+          let matchedApp = null;
+
+          // ✅ Find the most specific matching app name (ONLY full word matches)
+          for (const [appName, validDomains] of Object.entries(domainsDB)) {
+              const regex = new RegExp(`\\b${appName}\\b`, "i"); // Ensure full-word match
+              if (regex.test(linkText)) {
+                  matchedApp = appName; // Keep the most specific match
+              }
+          }
+
+          if (matchedApp && domainsDB[matchedApp]) {
+              const validDomains = domainsDB[matchedApp];
+              const isValid = isValidDomain(domain, validDomains, trustedDomains);
+
+              if (!isValid) {
+                  newFlaggedLinks.add(url.href);
+
+                  // ✅ Add warning immediately
+                  const warning = document.createElement("div");
+                  warning.classList.add("warning-alert");
+                  warning.style.cssText = `
+                      background: #fff3cd;
+                      color: #856404;
+                      padding: 10px;
+                      border: 1px solid #ffeeba;
+                      border-radius: 4px;
+                      margin: 5px 0;
+                      font-size: 14px;
+                  `;
+
+                  warning.textContent = `⚠️ ${warningTemplate.replace("{app}", matchedApp)}`;
+                  warning.setAttribute("title", `This link goes to ${domain} instead of an official ${matchedApp} domain.`);
+                  link.parentElement.insertBefore(warning, link.nextSibling);
+
+                  // ✅ Update warning if Google Safe Browsing confirms danger
+                  checkGoogleSafeBrowsing(url.href).then(isUnsafe => {
+                      if (isUnsafe) {
+                          warning.textContent = `⚠️ This link is confirmed dangerous by Google Safe Browsing!`;
+                      }
+                  });
+              }
+          }
+      } catch (e) {
+          console.error("Unexpected error processing link:", e);
+      }
+  });
+
+  // ✅ Store flagged links without waiting for Safe Browsing API
+  chrome.storage.local.get(["flaggedLinks", "totalSuspiciousLinks"], function (result) {
+      let existingLinks = new Set(result.flaggedLinks || []);
+      let totalCount = existingLinks.size;
+
+      let newLinksToAdd = [...newFlaggedLinks].filter(link => !existingLinks.has(link));
+
+      if (newLinksToAdd.length > 0) {
+          totalCount += newLinksToAdd.length;
+
+          chrome.storage.local.set({
+              totalSuspiciousLinks: totalCount,
+              flaggedLinks: [...existingLinks, ...newLinksToAdd]
+          }, () => {
+              chrome.runtime.sendMessage({ action: "updatePopup", flaggedLinks: [...existingLinks, ...newLinksToAdd], totalCount });
+          });
+      }
+  });
+}
+
+// ✅ Load domains and start analysis once ready
+function loadDomainsAndAnalyze() {
+    chrome.storage.local.get(["domainsDB", "trustedDomains", "blockedDomains", "safeBrowsingApiKey", "warningTemplate"], function (result) {
+        domainsDB = result.domainsDB || {};
+        trustedDomains = result.trustedDomains || [];
+        blockedDomains = result.blockedDomains || [];
+        SAFE_BROWSING_API_KEY = result.safeBrowsingApiKey || "";
+        warningTemplate = result.warningTemplate || "Warning: This link claims to be {app} but goes to an unofficial domain.";
+        console.log("✅ Loaded API Key:", SAFE_BROWSING_API_KEY);
+        isDomainsLoaded = true;
+        console.log("✅ Domains database loaded:", domainsDB);
+        analyzePageContent();
+    });
+}
+
+// Debounce function to limit how often a function can be called
+function debounce(func, wait) {
+    let timeout;
+    return function executedFunction(...args) {
+        const later = () => {
+            clearTimeout(timeout);
+            func(...args);
+        };
+        clearTimeout(timeout);
+        timeout = setTimeout(later, wait);
+    };
+}
+
+// Enhanced error handling wrapper
+function withErrorHandling(fn, errorMessage) {
+    return async (...args) => {
+        try {
+            return await fn(...args);
+        } catch (error) {
+            console.error(`${errorMessage}:`, error);
+            // You could add error reporting service here
+            return null;
+        }
+    };
+}
+
+// Debounced version of analyzePageContent
+const debouncedAnalyzePageContent = debounce(analyzePageContent, 250);
+
+// Enhanced version of analyzePageContent with better error handling
+const enhancedAnalyzePageContent = withErrorHandling(debouncedAnalyzePageContent, "Error analyzing page content");
+
+// Update the observer to use the enhanced version
+function observePageForLinks() {
+    const observer = new MutationObserver(() => enhancedAnalyzePageContent());
+
+    observer.observe(document.body, { childList: true, subtree: true });
+
+    function observeIframes() {
+        document.querySelectorAll("iframe").forEach((iframe) => {
+            try {
+                const iframeDoc = iframe.contentDocument || iframe.contentWindow.document;
+                if (iframeDoc) {
+                    observer.observe(iframeDoc.body, { childList: true, subtree: true });
+                    console.log("Observing links inside iframe:", iframe.src);
+                }
+            } catch (e) {
+                console.warn("Cannot access iframe due to cross-origin restrictions:", iframe.src);
+            }
+        });
+    }
+
+    // ✅ Run iframe observer every 3 seconds for Office 365 dynamic content
+    setInterval(observeIframes, 3000);
+}
+
+// ✅ Initialize extension scanning
+document.addEventListener("DOMContentLoaded", loadDomainsAndAnalyze);
+window.addEventListener("load", loadDomainsAndAnalyze);
+observePageForLinks();

domains.json

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+{
+  "1Password": ["1password.com", "1password.eu", "agilebits.com"],
+  "2checkout": ["2checkout.com", "2co.com", "verifone.cloud"],
+  "3CX": ["3cx.com", "3cx.net", "3cx.cloud"],
+  "3M Cloud": ["3m.com", "3mcloud.com"],
+  "4me": ["4me.com", "4me.app"],
+  "6sense": ["6sense.com", "6sense.io", "6sense.ai"],
+  "7digital": ["7digital.com", "7digital.net"],
+  "8x8": ["8x8.com", "8x8.net", "8x8.vc"],
+  "10x Genomics": ["10xgenomics.com", "10xgenomics.net"],
+  "A10 Networks": ["a10networks.com", "a10networks.net"],
+  "Aason": ["aason.com", "aason.cloud"],
+  "Abacus": ["abacus.com", "abacusfi.com"],
+  "ABB": ["abb.com", "abb.net"],
+  "AbbVie": ["abbvie.com", "abbvie.net"],
+  "Abiomed": ["abiomed.com", "abiomed.net"],
+  "Abnormal Security": ["abnormalsecurity.com", "abnormal.com"],
+  "Absolute Software": ["absolute.com", "absolutesoftware.com"],
+  "Absolutdata": ["absolutdata.com", "absolutdata.net"],
+  "Abukai": ["abukai.com", "abukaiexpense.com"],
+  "Accenture": ["accenture.com", "accenture.net"],
+  "AccuWeather": ["accuweather.com", "accuweather.net"],
+  "Achieve3000": ["achieve3000.com", "achieve3000.net"],
+  "Acquia": ["acquia.com", "acquia.net"],
+  "Acronis": ["acronis.com", "acronis.net"],
+  "ActionIQ": ["actioniq.com", "actioniq.ai"],
+  "Actionstep": ["actionstep.com", "actionstep.net"],
+  "Active Campaign": ["activecampaign.com", "activehosted.com"],
+  "ActiveBatch": ["advsyscon.com", "activebatch.com"],
+  "Acuity Scheduling": ["acuityscheduling.com", "squareup.com"],
+  "Acumatica": ["acumatica.com", "acumatica.net"],
+  "Adaptive Insights": ["adaptiveinsights.com", "adaptive.com"],
+  "AdaptiveShield": ["adaptiveshield.com", "adaptiveshield.io"],
+  "Addteq": ["addteq.com", "addteq.net"],
+  "Adobe": ["adobe.com", "adobe.net", "adobelogin.com", "adobe.io", "creative.adobe.com", "acrobat.com", "behance.net"],
+  "ADP": ["adp.com", "workforcenow.adp.com", "run.adp.com", "adpself-service.com"],
+  "Adroll": ["adroll.com", "adroll.net"],
+  "Adswerve": ["adswerve.com", "analytics-360.com"],
+  "Advantech": ["advantech.com", "advantech.net"],
+  "Aerospike": ["aerospike.com", "aerospike.net"],
+  "Agiloft": ["agiloft.com", "agiloft.net"],
+  "Aha!": ["aha.io", "aha.com"],
+  "Airbnb": ["airbnb.com", "airbnb.co.uk", "airbnb.ca", "airbnbchina.cn"],
+  "Airtable": ["airtable.com", "airtable.net", "airtableusercontent.com"],
+  "Airwatch": ["air-watch.com", "awmdm.com"],
+  "Akamai": ["akamai.com", "akamai.net", "akamaiedge.net", "akamaized.net"],
+  "Akka": ["akka.io", "lightbend.com"],
+  "Alarm.com": ["alarm.com", "alarm.net"],
+  "Alation": ["alation.com", "alation.net"],
+  "Alcatel-Lucent": ["al-enterprise.com", "alcatel-lucent.com"],
+  "AlertMedia": ["alertmedia.com", "alertmedia.net"],
+  "Alfresco": ["alfresco.com", "alfresco.net"],
+  "Algolia": ["algolia.com", "algolia.net", "algolianet.com"],
+  "AlienVault": ["alienvault.com", "att.com"],
+  "AliCloud": ["aliyun.com", "alibabacloud.com", "alipay.com"],
+  "Allocadia": ["allocadia.com", "allocadia.net"],
+  "Allscripts": ["allscripts.com", "allscriptscloud.com"],
+  "Alluxio": ["alluxio.com", "alluxio.io"],
+  "Alpha Software": ["alphasoftware.com", "alpha-anywhere.com"],
+  "Alteryx": ["alteryx.com", "alteryx.net"],
+  "Alto": ["alto.com", "alto.sh"],
+  "Altova": ["altova.com", "altova.net"],
+  "Alyne": ["alyne.com", "alyne.ai"],
+  "Amazon AWS": ["aws.amazon.com", "amazonaws.com", "cloudfront.net", "amazon.com", "awsstatic.com"],
+  "Amelia": ["amelia.ai", "amelia.com"],
+  "Amplitude": ["amplitude.com", "amplitude.net"],
+  "AMS Neve": ["ams-neve.com", "neve.com"],
+  "Anaplan": ["anaplan.com", "anaplan.net"],
+  "Anchore": ["anchore.com", "anchore.io"],
+  "Andela": ["andela.com", "andela.co"],
+  "Angular": ["angular.io", "angularjs.org"],
+  "Anime": ["anime.com", "crunchyroll.com"],
+  "Anova": ["anova.com", "anovaculinary.com"],
+  "Ansible": ["ansible.com", "redhat.com"],
+  "Anthos": ["cloud.google.com/anthos", "googleapis.com"],
+  "AntWorks": ["ant.works", "antworks.com"],
+  "Anydesk": ["anydesk.com", "anydesk.net"],
+  "Aon": ["aon.com", "aon.net"],
+  "Apache": ["apache.org", "apachecloud.com"],
+  "Apigee": ["apigee.com", "apigee.net"],
+  "Appcues": ["appcues.com", "appcues.net"],
+  "AppDirect": ["appdirect.com", "appdirect.net"],
+  "AppDynamics": ["appdynamics.com", "appdynamics.net"],
+  "Appery.io": ["appery.io", "appery.net"],
+  "Appfolio": ["appfolio.com", "appfolio.net"],
+  "Appian": ["appian.com", "appian.net"],
+  "Apple Business": ["apple.com", "icloud.com"],
+  "ApplicationHA": ["veritas.com", "symantec.com"],
+  "Apprenda": ["apprenda.com", "apprenda.net"],
+  "AppSense": ["appsense.com", "ivanti.com"],
+  "Apptio": ["apptio.com", "apptio.net"],
+  "Apptus": ["apptus.com", "apptus.net"],
+  "AppViewX": ["appviewx.com", "appviewx.net"],
+  "Apptentive": ["apptentive.com", "apptentive.net"],
+  "Aprimo": ["aprimo.com", "aprimo.net"],
+  "ArangoDB": ["arangodb.com", "arangodb.net"],
+  "Aravo": ["aravo.com", "aravo.net"],
+  "Arcadia Data": ["arcadiadata.com", "arcadia.com"],
+  "Archer": ["archerirm.com", "rsa.com"],
+  "Archi": ["archimatetool.com", "archi.com"],
+  "Archibus": ["archibus.com", "archibus.net"],
+  "Arctic Wolf": ["arcticwolf.com", "arcticwolf.net"],
+  "Aria Systems": ["ariasystems.com", "aria.com"],
+  "Arista": ["arista.com", "aristanetworks.com"],
+  "Arkadin": ["arkadin.com", "arkadin.net"],
+  "ArmisIT": ["armis.com", "armis.io"],
+  "Armorblox": ["armorblox.com", "armorblox.io"],
+  "Asana": ["asana.com", "asana.net", "app.asana.com"],
+  "Ascender": ["ascenderpay.com", "ascender.com"],
+  "AspenTech": ["aspentech.com", "aspentech.net"],
+  "Assemble": ["assemble.com", "assemblesystems.com"],
+  "Assessteam": ["assessteam.com", "assessteam.net"],
+  "Atlassian": ["atlassian.com", "jira.com", "atlassian.net"],
+  "Atlassian Jira": ["atlassian.com", "jira.com", "atlassian.net"],
+  "Aternity": ["aternity.com", "aternity.net"],
+  "Atos": ["atos.net", "atosglobal.com"],
+  "Attentive": ["attentive.com", "attentivemobile.com"],
+  "Auth0": ["auth0.com", "auth0.net"],
+  "Autodesk": ["autodesk.com", "autodesk.net", "autocad360.com"],
+  "Automation Anywhere": ["automationanywhere.com", "autoany.com"],
+  "Avalara": ["avalara.com", "avalara.net"],
+  "Avaya": ["avaya.com", "avaya.net"],
+  "Aveva": ["aveva.com", "aveva.net"],
+  "Basecamp": ["basecamp.com", "basecamp.net"],
+  "BigCommerce": ["bigcommerce.com", "bigcommerce.net"],
+  "Bitbucket": ["bitbucket.org", "atlassian.com"],
+  "Bitdefender": ["bitdefender.com", "bitdefender.net"],
+  "BlueJeans": ["bluejeans.com", "bluejeansnet.com"],
+  "Box": ["box.com", "boxcdn.net"],
+  "Buffer": ["buffer.com", "bufferapp.com"],
+  "Carbon Black": ["carbonblack.com", "vmware.com"],
+  "Canva": ["canva.com", "canvaassets.com"],
+  "Chef": ["chef.io", "progress.com"],
+  "Cisco AnyConnect": ["cisco.com", "vpn.com"],
+  "Cisco Jabber": ["jabber.com", "cisco.com"],
+  "Cisco WebEx": ["webex.com", "cisco.com"],
+  "Citrix": ["citrix.com", "cloud.com"],
+  "Cloudflare": ["cloudflare.com", "cloudflare.net", "cfassets.net"],
+  "Confluence": ["confluence.com", "atlassian.com", "atlassian.net"],
+  "CrowdStrike": ["crowdstrike.com", "crowdstrike.net"],
+  "CrowdStrike Falcon": ["crowdstrike.com", "falcon.crowdstrike.com"],
+  "Datadog": ["datadoghq.com", "datadog.com"],
+  "DigitalOcean": ["digitalocean.com", "digitaloceanspaces.com"],
+  "Docker": ["docker.com", "docker.io"],
+  "Docusign": ["docusign.com", "docusign.net", "docusigncdn.com"],
+  "Dropbox": ["dropbox.com", "dropboxusercontent.com", "dropboxapi.com"],
+  "Dropbox Paper": ["paper.dropbox.com", "dropboxusercontent.com"],
+  "Elastic": ["elastic.co", "elasticsearch.com"],
+  "ExpressVPN": ["expressvpn.com", "expressvpn.net"],
+  "Fastly": ["fastly.com", "fastly.net"],
+  "Flock": ["flock.com", "flock.co"],
+  "Fortinet": ["fortinet.com", "fortiguard.com", "forticloud.com"],
+  "Freshdesk": ["freshdesk.com", "freshworks.com"],
+  "GitHub": ["github.com", "githubusercontent.com"],
+  "GitLab": ["gitlab.com", "gitlab.net"],
+  "GoDaddy": ["godaddy.com", "godaddy.net"],
+  "Google Workspace": ["google.com", "workspace.google.com", "googleusercontent.com"],
+  "Grafana": ["grafana.com", "grafana.net"],
+  "Heroku": ["heroku.com", "salesforce.com", "herokuapp.com"],
+  "Hootsuite": ["hootsuite.com", "hootsuitecdn.com"],
+  "HubSpot": ["hubspot.com", "hubspot.net", "hs-sites.com"],
+  "InVision": ["invisionapp.com", "invision.com"],
+  "Intuit": ["intuit.com", "quickbooks.com"],
+  "Kaspersky": ["kaspersky.com", "kaspersky.net"],
+  "Keeper": ["keepersecurity.com", "keepersecurity.net"],
+  "Kubernetes": ["kubernetes.io", "cloud.google.com"],
+  "LastPass": ["lastpass.com", "logmein.com"],
+  "LinkedIn": ["linkedin.com", "linkedin.net", "licdn.com"],
+  "LogMeIn": ["logmein.com", "logmeinrescue.com"],
+  "Lucidchart": ["lucidchart.com", "lucid.co"],
+  "Magento": ["magento.com", "magento.net"],
+  "Mailchimp": ["mailchimp.com", "mailchimp.net"],
+  "Marketo": ["marketo.com", "adobe.com"],
+  "McAfee": ["mcafee.com", "mcafee.net"],
+  "Microsoft 365": ["microsoft.com", "office.com", "onmicrosoft.com"],
+  "Microsoft Teams": ["teams.microsoft.com", "office.com"],
+  "Miro": ["miro.com", "mirocdn.com"],
+  "Monday.com": ["monday.com", "monday.net"],
+  "Netlify": ["netlify.com", "netlify.app"],
+  "New Relic": ["newrelic.com", "newrelic.net"],
+  "NordVPN": ["nordvpn.com", "nordvpn.net"],
+  "Notion": ["notion.so", "notion.com"],
+  "Okta": ["okta.com", "okta.net"],
+  "Olark": ["olark.com", "olark.net"],
+  "Oracle": ["oracle.com", "oraclecloud.com"],
+  "Palo Alto Networks": ["paloaltonetworks.com", "paloaltonetworks.net"],
+  "PagerDuty": ["pagerduty.com", "pagerduty.net"],
+  "PayPal": ["paypal.com", "paypalobjects.com", "paypal-cdn.com"],
+  "Pardot": ["pardot.com", "salesforce.com"],
+  "Proofpoint": ["proofpoint.com", "proofpoint.net"],
+  "Prometheus": ["prometheus.io", "cloud.google.com"],
+  "Puppet": ["puppet.com", "puppetlabs.com"],
+  "Red Hat": ["redhat.com", "openshift.com"],
+  "RingCentral": ["ringcentral.com", "ringcentral.net"],
+  "SAP": ["sap.com", "sap-anywhere.com"],
+  "SAP Concur": ["concur.com", "sap.com"],
+  "Salesforce": ["salesforce.com", "force.com"],
+  "SentinelOne": ["sentinelone.com", "sentinelone.net"],
+  "ServiceNow": ["servicenow.com", "now.com"],
+  "Shopify": ["shopify.com", "shopifycdn.com"],
+  "Slack": ["slack.com", "slack-edge.com"],
+  "Sophos": ["sophos.com", "sophos.net"],
+  "Splashtop": ["splashtop.com", "splashtop.net"],
+  "Splunk": ["splunk.com", "splunkcloud.com"],
+  "Square": ["squareup.com", "square.com"],
+  "Stripe": ["stripe.com", "stripe.net"],
+  "Symantec": ["symantec.com", "broadcom.com"],
+  "Tableau": ["tableau.com", "salesforce.com"],
+  "Tanium": ["tanium.com", "tanium.net"],
+  "Terraform": ["terraform.io", "hashicorp.com"],
+  "TeamViewer": ["teamviewer.com", "teamviewer.net"],
+  "TOPdesk": ["topdesk.com", "topdesk.net"],
+  "Trello": ["trello.com", "atlassian.com"],
+  "Twilio": ["twilio.com", "twilio.ai"],
+  "Vercel": ["vercel.com", "vercel.app"],
+  "Vonage": ["vonage.com", "vonagebusiness.com"],
+  "WeTransfer": ["wetransfer.com", "wetransfer.net"],
+  "Wix": ["wix.com", "wixstatic.com"],
+  "Workday": ["workday.com", "workday.net"],
+  "Zendesk": ["zendesk.com", "zdassets.com"],
+  "Zendesk Sell": ["sell.zendesk.com", "zdassets.com"],
+  "Zoom": ["zoom.us", "zoom.com", "zoomgov.com"],
+  "ZoomInfo": ["zoominfo.com", "zoominfo.net"],
+  "Zoom Phone": ["zoom.us", "zoom.com"]
+}

domains_management.html

@@ -0,0 +1,205 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Enterprise App Protection - Domain Management</title>
+    <style>
+        body {
+            font-family: Arial, sans-serif;
+            background-color: #f8f9fa;
+            margin: 0;
+            padding: 20px;
+            display: flex;
+            justify-content: center;
+        }
+
+        .container {
+            max-width: 600px;
+            width: 100%;
+            background: #fff;
+            padding: 20px;
+            border-radius: 8px;
+            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
+        }
+
+        h1 {
+            font-size: 24px;
+            color: #333;
+            text-align: center;
+            margin-bottom: 15px;
+        }
+
+        h3 {
+            font-size: 18px;
+            color: #555;
+            margin-top: 20px;
+        }
+
+        p {
+            font-size: 14px;
+            color: #666;
+        }
+
+        textarea {
+            width: 100%;
+            padding: 10px;
+            margin-top: 5px;
+            border: 1px solid #ccc;
+            border-radius: 5px;
+            font-size: 14px;
+            height: 120px;
+            resize: vertical;
+            box-sizing: border-box;
+        }
+
+        pre {
+            background: #f4f4f4;
+            padding: 10px;
+            border-radius: 5px;
+            font-size: 14px;
+            overflow-x: auto;
+        }
+
+        .button-container {
+            text-align: center;
+            margin-top: 20px;
+        }
+
+        button {
+            background-color: #007bff;
+            color: white;
+            border: none;
+            padding: 10px 20px;
+            font-size: 16px;
+            border-radius: 5px;
+            cursor: pointer;
+            transition: background 0.3s;
+        }
+
+        button:hover {
+            background-color: #0056b3;
+        }
+
+        /* Styled Popup */
+        .popup {
+            display: none;
+            position: fixed;
+            top: 50%;
+            left: 50%;
+            transform: translate(-50%, -50%);
+            background: white;
+            padding: 20px;
+            border-radius: 8px;
+            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
+            z-index: 1000;
+            width: 300px;
+            text-align: center;
+        }
+
+        .popup-content {
+            font-size: 16px;
+            color: #333;
+        }
+
+        .popup button {
+            background-color: #007bff;
+            color: white;
+            border: none;
+            padding: 8px 16px;
+            font-size: 14px;
+            border-radius: 5px;
+            cursor: pointer;
+            margin-top: 10px;
+        }
+
+        .popup button:hover {
+            background-color: #0056b3;
+        }
+
+        .hidden {
+            display: none;
+        }
+
+        .visible {
+            display: block;
+        }
+
+        /* Style the placeholder text to make it look distinct from user input */
+        input::placeholder,
+        textarea::placeholder {
+            color: #aaa;
+            /* Lighter gray color */
+            font-style: italic;
+            /* Makes it look like a hint */
+            opacity: 1;
+            /* Ensures it's fully visible */
+        }
+
+        /* Ensure actual input text is clear */
+        input,
+        textarea {
+            color: #333;
+            /* Dark text for actual input */
+        }
+
+        pre {
+            background: #f4f4f4;
+            padding: 10px;
+            border-radius: 5px;
+            font-size: 14px;
+            overflow-x: auto;
+            font-style: italic;
+            color: #333;
+            /* Make text italic */
+        }
+    </style>
+</head>
+
+<body>
+    <div class="container">
+        <h1>Enterprise App Protection - Domain Management</h1>
+
+        <!-- Restored Instructions -->
+        <h3>✅ How to Use</h3>
+        <ul>
+            <li>✅ Enter <strong>one domain per line</strong> (no commas or spaces).</li>
+            <li>✅ <strong>Do not include</strong> <code>https://</code> or <code>www.</code> (only enter the domain
+                name).</li>
+            <li>✅ You can add subdomains if needed (e.g., <code>sub.example.com</code>).</li>
+            <li>✅ <strong>Trusted Domains:</strong> These sites will <u>not</u> be flagged as unsafe.</li>
+            <li>✅ <strong>Blocked Domains:</strong> These sites will <u>always</u> be flagged, even if Google Safe
+                Browsing does not detect them.</li>
+            <li>🚨 <strong>Example Entries:</strong></li>
+        </ul>
+        <pre><em>
+    example.com
+    secure-site.org
+    sub.example.com
+    malicious-site.net
+        </em></pre>
+
+        <h3>✅ Trusted Domains (Safe List)</h3>
+        <textarea id="trusted" placeholder="Enter trusted domains here..."></textarea>
+
+        <h3>❌ Blocked Domains (Unsafe List)</h3>
+        <textarea id="blocked" placeholder="Enter blocked domains here..."></textarea>
+
+        <div class="button-container">
+            <button id="save">💾 Save Domains</button>
+        </div>
+    </div>
+
+    <!-- Styled Popup -->
+    <div id="popupMessage" class="popup hidden">
+        <div class="popup-content">
+            <p id="popupText">Changes saved successfully!</p>
+            <button id="popupClose">OK</button>
+        </div>
+    </div>
+
+    <script src="domains_management.js"></script>
+</body>
+
+</html>

domains_management.js

@@ -0,0 +1,39 @@
+document.addEventListener("DOMContentLoaded", function () {
+    const saveButton = document.getElementById("save");
+    const trustedInput = document.getElementById("trusted");
+    const blockedInput = document.getElementById("blocked");
+
+    // Load saved domains
+    chrome.storage.local.get(["trustedDomains", "blockedDomains"], function (data) {
+        if (data.trustedDomains) trustedInput.value = data.trustedDomains.join("\n");
+        if (data.blockedDomains) blockedInput.value = data.blockedDomains.join("\n");
+    });
+
+    // Save button event
+    saveButton.addEventListener("click", function () {
+        // Retrieve domains from input fields
+        const trustedDomains = trustedInput.value.split("\n").map(d => d.trim()).filter(d => d);
+        const blockedDomains = blockedInput.value.split("\n").map(d => d.trim()).filter(d => d);
+
+        // Save to Chrome storage
+        chrome.storage.local.set({ trustedDomains, blockedDomains }, function () {
+            showPopup("✅ Changes saved successfully!");
+        });
+    });
+
+    // Function to show styled popup message
+    function showPopup(message) {
+        const popup = document.getElementById("popupMessage");
+        const popupText = document.getElementById("popupText");
+        const popupClose = document.getElementById("popupClose");
+
+        popupText.innerText = message;
+        popup.classList.remove("hidden");
+        popup.classList.add("visible");
+
+        popupClose.addEventListener("click", function () {
+            popup.classList.remove("visible");
+            popup.classList.add("hidden");
+        });
+    }
+});

manifest.json

@@ -0,0 +1,48 @@
+{
+  "manifest_version": 3,
+  "name": "Enterprise App Protection",
+  "version": "1.0",
+  "description": "Warns when enterprise tool mentions are linked to non-official sites",
+  "permissions": [
+    "storage",
+    "activeTab",
+    "alarms",
+    "scripting",
+    "tabs"
+  ],
+  "host_permissions": [
+    "https://raw.githubusercontent.com/*"
+  ],
+  "background": {
+    "service_worker": "background.js",
+    "type": "module"
+  },
+  "content_scripts": [
+    {
+      "matches": ["<all_urls>"],
+      "js": ["config.js", "content.js"],
+      "run_at": "document_idle"
+    }
+  ],
+  "action": {
+    "default_popup": "popup.html",
+    "default_icon": {
+      "16": "icons/icon16.png",
+      "48": "icons/icon48.png",
+      "128": "icons/icon128.png"
+    }
+  },
+  "icons": {
+    "16": "icons/icon16.png",
+    "48": "icons/icon48.png",
+    "128": "icons/icon128.png"
+  },
+  "options_page": "options.html",
+  "content_security_policy": {
+    "extension_pages": "script-src 'self'; object-src 'self'"
+  },
+  "web_accessible_resources": [{
+    "resources": ["icons/*"],
+    "matches": ["<all_urls>"]
+  }]
+}

options.html

@@ -0,0 +1,141 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Enterprise App Protection - Settings</title>
+    <style>
+        body {
+            font-family: Arial, sans-serif;
+            background-color: #f8f9fa;
+            margin: 0;
+            padding: 20px;
+            display: flex;
+            justify-content: center;
+        }
+
+        .container {
+            max-width: 600px;
+            width: 100%;
+            background: #fff;
+            padding: 20px;
+            border-radius: 8px;
+            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
+        }
+
+        h1 {
+            font-size: 24px;
+            color: #333;
+            text-align: center;
+            margin-bottom: 15px;
+        }
+
+        h3 {
+            font-size: 18px;
+            color: #555;
+            margin-top: 20px;
+        }
+
+        p {
+            font-size: 14px;
+            color: #666;
+        }
+
+        input, textarea {
+            width: 100%;
+            padding: 10px;
+            margin-top: 5px;
+            border: 1px solid #ccc;
+            border-radius: 5px;
+            font-size: 14px;
+            box-sizing: border-box; /* Ensures padding is included in width */
+        }
+
+        textarea {
+            height: 120px;
+            resize: vertical;
+        }
+
+        a {
+            color: #007bff;
+            text-decoration: none;
+        }
+
+        a:hover {
+            text-decoration: underline;
+        }
+
+        pre {
+            background: #f4f4f4;
+            padding: 10px;
+            border-radius: 5px;
+            font-size: 14px;
+            overflow-x: auto;
+        }
+
+        .button-container {
+            text-align: center;
+            margin-top: 20px;
+        }
+
+        button {
+            background-color: #007bff;
+            color: white;
+            border: none;
+            padding: 10px 20px;
+            font-size: 16px;
+            border-radius: 5px;
+            cursor: pointer;
+            transition: background 0.3s;
+        }
+
+        button:hover {
+            background-color: #0056b3;
+        }
+        /* Style the placeholder text to make it look distinct from user input */
+input::placeholder, textarea::placeholder {
+    color: #aaa; /* Lighter gray color */
+    font-style: italic; /* Makes it look like a hint */
+    opacity: 1; /* Ensures it's fully visible */
+}
+
+/* Ensure actual input text is clear */
+input, textarea {
+    color: #333; /* Dark text for actual input */
+}
+    </style>
+</head>
+<body>
+    <div class="container">
+        <h1>Enterprise App Protection - Settings</h1>
+
+        <h3>🔑 Google Safe Browsing API Key</h3>
+        <p>
+            To use Google Safe Browsing, you need an API key. 
+            <a href="https://console.cloud.google.com/apis/credentials" target="_blank" rel="noopener noreferrer">
+                Click here to create a key
+            </a> (you may need to enable the Safe Browsing API in Google Cloud Console).
+        </p>
+        <input type="text" id="apiKey" placeholder="Enter your API key here" />
+
+        <h3>🌐 Domains Database URL</h3>
+        <p>Enter the URL for the domains database (JSON format):</p>
+        <input type="text" id="domainsDBURL" placeholder="Enter the URL here" value="https://raw.githubusercontent.com/rrpbergsma/EnterpriseAppProtection/refs/heads/main/domains.json" />
+
+        <h3>⏱️ Update Interval (hours)</h3>
+        <p>Enter the interval (in hours) to check for updates to the domains database:</p>
+        <input type="number" id="updateInterval" placeholder="Enter the update interval here" value="24" />
+
+        <h3>⚠️ Warning Message Template</h3>
+        <p>Enter the template for the warning message (use <code>{app}</code> to represent the application name):</p>
+        <input type="text" id="warningTemplate" placeholder="Enter the warning message template here" value="Warning: This link claims to be {app} but goes to an unofficial domain." />
+
+
+        <div class="button-container">
+            <button id="save">💾 Save Settings</button>
+        </div>
+    </div>
+
+    <script src="options.js"></script>
+</body>
+</html>

options.js

@@ -0,0 +1,54 @@
+document.addEventListener("DOMContentLoaded", function () {
+    // Get UI elements safely
+    const apiKeyElement = document.getElementById("apiKey");
+    const domainsDBURLElement = document.getElementById("domainsDBURL");
+    const updateIntervalElement = document.getElementById("updateInterval");
+    const warningTemplateElement = document.getElementById("warningTemplate");
+    const saveButton = document.getElementById("save");
+
+    // Check if warningTemplateElement exists before setting value
+    if (!warningTemplateElement) {
+        console.error("⚠️ Element with ID 'warningTemplate' not found in options.html!");
+    }
+
+    // Default values
+    const defaultValues = {
+        safeBrowsingApiKey: "",
+        domainsDBURL: "https://raw.githubusercontent.com/rrpbergsma/EnterpriseAppProtection/refs/heads/main/domains.json",
+        updateInterval: 24,
+        warningTemplate: "Warning: This link claims to be {app} but goes to an unofficial domain."
+    };
+
+    // Load stored settings and apply defaults where needed
+    chrome.storage.local.get(["safeBrowsingApiKey", "domainsDBURL", "updateInterval", "warningTemplate"], function (data) {
+        if (apiKeyElement) apiKeyElement.value = data.safeBrowsingApiKey || defaultValues.safeBrowsingApiKey;
+        if (domainsDBURLElement) domainsDBURLElement.value = data.domainsDBURL || defaultValues.domainsDBURL;
+        if (updateIntervalElement) updateIntervalElement.value = data.updateInterval || defaultValues.updateInterval;
+        if (warningTemplateElement) {
+            warningTemplateElement.value = data.warningTemplate || defaultValues.warningTemplate;
+        }
+    });
+
+    // Save settings when clicking "Save"
+    if (saveButton) {
+        saveButton.addEventListener("click", function () {
+            const apiKey = apiKeyElement && apiKeyElement.value.trim() ? apiKeyElement.value.trim() : defaultValues.safeBrowsingApiKey;
+            const domainsDBURL = domainsDBURLElement && domainsDBURLElement.value.trim() ? domainsDBURLElement.value.trim() : defaultValues.domainsDBURL;
+            const updateInterval = updateIntervalElement && updateIntervalElement.value.trim()
+                ? parseInt(updateIntervalElement.value.trim()) || defaultValues.updateInterval
+                : defaultValues.updateInterval;
+            const warningTemplate = warningTemplateElement && warningTemplateElement.value.trim()
+                ? warningTemplateElement.value.trim()
+                : defaultValues.warningTemplate;
+
+            chrome.storage.local.set({
+                safeBrowsingApiKey: apiKey,
+                domainsDBURL: domainsDBURL,
+                updateInterval: updateInterval,
+                warningTemplate: warningTemplate
+            }, function () {
+                alert("✅ Settings saved successfully!");
+            });
+        });
+    }
+});

popup.html

@@ -0,0 +1,93 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Enterprise App Protection</title>
+    <style>
+        body {
+            font-family: Arial, sans-serif;
+            padding: 15px;
+            width: 280px;
+            background-color: #f8f9fa;
+            text-align: center;
+            border-radius: 8px;
+        }
+        h2 {
+            margin-top: 0;
+            color: #333;
+            font-size: 18px;
+        }
+        p {
+            font-size: 14px;
+            margin: 10px 0;
+            color: #555;
+        }
+        .counter {
+            font-size: 16px;
+            font-weight: bold;
+            color: #dc3545;
+        }
+        ul {
+            list-style: none;
+            padding: 0;
+            text-align: left;
+            max-height: 120px;
+            overflow-y: auto;
+            background: #fff;
+            border-radius: 5px;
+            padding: 5px;
+            box-shadow: inset 0 0 5px rgba(0,0,0,0.1);
+        }
+        li {
+            font-size: 13px;
+            padding: 5px;
+            border-bottom: 1px solid #eee;
+        }
+        li:last-child {
+            border-bottom: none;
+        }
+        button {
+            width: 100%;
+            padding: 10px;
+            margin-top: 10px;
+            border: none;
+            border-radius: 5px;
+            cursor: pointer;
+            font-size: 14px;
+            font-weight: bold;
+        }
+        .update-btn {
+            background: #007bff;
+            color: white;
+        }
+        .settings-btn {
+            background: #28a745;
+            color: white;
+        }
+        .domains-btn {
+            background: #17a2b8;
+            color: white;
+        }
+        button:hover {
+            opacity: 0.8;
+        }
+        
+    </style>
+</head>
+<body>
+    <h2>Enterprise App Protection</h2>
+    <p>Suspicious Links Detected: <span class="counter" id="suspiciousCount">0</span></p>
+
+    <ul id="suspiciousLinks"></ul>
+    <p id="lastUpdate">Last Updated: Never</p>
+    <button id="updateDB" class="update-btn">🔄 Update Database</button>
+    <button id="settings" class="settings-btn">⚙️ Open Settings</button>
+    <button id="manageDomains" class="domains-btn">🌐 Manage Domains</button>
+
+    <h3>🔄 Reset Suspicious Links Counter</h3>
+    <button id="resetCounter">♻️ Reset Counter</button>
+
+    <script src="popup.js"></script>
+</body>
+</html>

popup.js

@@ -0,0 +1,74 @@
+// popup.js
+
+// Open the options/settings page when the "Settings" button is clicked
+document.getElementById("settings").addEventListener("click", function () {
+  chrome.runtime.openOptionsPage();
+});
+
+// Update the domains database when clicking the "Update Database" button
+document.getElementById("updateDB").addEventListener("click", () => {
+  chrome.runtime.sendMessage({ action: "updateDB" }, (response) => {
+      console.log("Update response:", response);
+      chrome.storage.local.get(["lastUpdate"], function(result) {
+        if (result.lastUpdate) {
+            const date = new Date(result.lastUpdate);
+    
+            // Format: dd-MM-yyyy HH:mm (24-hour format, no seconds)
+            const formattedDate = `${String(date.getDate()).padStart(2, '0')}-${String(date.getMonth() + 1).padStart(2, '0')}-${date.getFullYear()} ${String(date.getHours()).padStart(2, '0')}:${String(date.getMinutes()).padStart(2, '0')}`;
+    
+            const lastUpdateElement = document.getElementById("lastUpdate");
+            if (lastUpdateElement) {
+                lastUpdateElement.textContent = `Last Updated: ${formattedDate}`;
+            }
+        } else {
+            const lastUpdateElement = document.getElementById("lastUpdate");
+            if (lastUpdateElement) {
+                lastUpdateElement.textContent = "Last Updated: Never";
+            }
+        }
+    });
+
+      // Show an alert to the user
+      alert(response.status === "updated" ? "✅ Database successfully updated!" : "❌ Failed to update database.");
+  });
+});
+
+// Open the domains management page when the "Manage Domains" button is clicked
+document.getElementById("manageDomains").addEventListener("click", function () {
+  chrome.tabs.create({ url: chrome.runtime.getURL("domains_management.html") });
+});
+
+// Load total suspicious links count and update UI
+chrome.storage.local.get(["totalSuspiciousLinks"], function (result) {
+  document.getElementById("suspiciousCount").innerText = result.totalSuspiciousLinks || 0;
+});
+
+// Retrieve flagged links and display them
+chrome.runtime.sendMessage({ action: "getSuspiciousLinks" }, response => {
+  document.getElementById("suspiciousLinks").innerHTML = response.links.length
+      ? response.links.map(link => `<li>${link}</li>`).join("")
+      : "<li>No suspicious links detected.</li>";
+});
+
+// Listen for updates from content.js
+chrome.runtime.onMessage.addListener((message, sender, sendResponse) => {
+  if (message.action === "updatePopup") {
+      document.getElementById("suspiciousCount").innerText = message.totalCount; // Persist total count
+      document.getElementById("suspiciousLinks").innerHTML = message.flaggedLinks.length
+          ? message.flaggedLinks.map(link => `<li>${link}</li>`).join("")
+          : "<li>No suspicious links detected.</li>";
+  }
+});
+
+document.getElementById("resetCounter").addEventListener("click", function () {
+  chrome.storage.local.set({ totalSuspiciousLinks: 0, flaggedLinks: [] }, function () {
+      alert("Suspicious links counter has been reset.");
+
+      // Force the UI to update immediately
+      document.getElementById("suspiciousCount").innerText = "0";
+      document.getElementById("suspiciousLinks").innerHTML = "<li>No suspicious links detected.</li>";
+
+      // Notify the background script (optional, if needed)
+      chrome.runtime.sendMessage({ action: "resetCounter" });
+  });
+});