diff --git a/apps/web/src/hooks/useBrowserDetection.tsx b/apps/web/src/hooks/useBrowserDetection.tsx
new file mode 100644
index 000000000..da7c5d87d
--- /dev/null
+++ b/apps/web/src/hooks/useBrowserDetection.tsx
@@ -0,0 +1,45 @@
+import { useMemo } from 'react';
+
+interface BrowserInfo {
+  isEdge: boolean;
+  isChrome: boolean;
+  isSafari: boolean;
+  isFirefox: boolean;
+  browserName: string;
+}
+
+export function useBrowserDetection(): BrowserInfo {
+  const browserInfo = useMemo(() => {
+    if (typeof window === 'undefined' || typeof navigator === 'undefined') {
+      return {
+        isEdge: false,
+        isChrome: false,
+        isSafari: false,
+        isFirefox: false,
+        browserName: 'unknown',
+      };
+    }
+
+    const userAgent = navigator.userAgent.toLowerCase();
+    const isEdge = userAgent.includes('edg/');
+    const isChrome = userAgent.includes('chrome') && !isEdge;
+    const isSafari = userAgent.includes('safari') && !isChrome && !isEdge;
+    const isFirefox = userAgent.includes('firefox');
+
+    let browserName = 'unknown';
+    if (isEdge) browserName = 'edge';
+    else if (isChrome) browserName = 'chrome';
+    else if (isSafari) browserName = 'safari';
+    else if (isFirefox) browserName = 'firefox';
+
+    return {
+      isEdge,
+      isChrome,
+      isSafari,
+      isFirefox,
+      browserName,
+    };
+  }, []);
+
+  return browserInfo;
+}
diff --git a/apps/web/src/hooks/useSpeechRecognition.tsx b/apps/web/src/hooks/useSpeechRecognition.tsx
index a5a85cfbc..d70b9d25b 100644
--- a/apps/web/src/hooks/useSpeechRecognition.tsx
+++ b/apps/web/src/hooks/useSpeechRecognition.tsx
@@ -1,5 +1,6 @@
 import { useCallback, useEffect, useRef, useState } from 'react';
 import { openErrorNotification } from '@/context/BusterNotifications';
+import { useBrowserDetection } from './useBrowserDetection';
 
 // Type definitions for Web Speech API
 interface SpeechRecognitionErrorEvent extends Event {
@@ -54,10 +55,14 @@ export function useSpeechRecognition(): UseSpeechRecognitionReturn {
   const [error, setError] = useState<string | null>(null);
   const [hasPermission, setHasPermission] = useState(false);
   const finalTranscriptRef = useRef('');
+  const { isEdge, isFirefox } = useBrowserDetection();
 
-  // Check browser support
+  // Check browser support - disable for Edge due to language support issues
   const browserSupportsSpeechRecognition =
-    typeof window !== 'undefined' && (window.SpeechRecognition || window.webkitSpeechRecognition);
+    !isEdge &&
+    !isFirefox &&
+    typeof window !== 'undefined' &&
+    (window.SpeechRecognition || window.webkitSpeechRecognition);
 
   // Check microphone permission
   useEffect(() => {
@@ -91,7 +96,8 @@ export function useSpeechRecognition(): UseSpeechRecognitionReturn {
 
     recognition.continuous = true;
     recognition.interimResults = true;
-    recognition.lang = 'en-US';
+    // Don't set lang - let it use browser default
+    // Edge can be particular about language codes
 
     recognition.onstart = () => {
       setListening(true);
@@ -131,7 +137,10 @@ export function useSpeechRecognition(): UseSpeechRecognitionReturn {
       openErrorNotification({ message });
       setError(message);
 
-      onStopListening();
+      // Stop recognition and listening state
+      recognition.stop();
+      recognition.abort();
+      setListening(false);
     };
 
     recognition.onend = () => {
diff --git a/apps/web/src/middleware/csp-helper.ts b/apps/web/src/middleware/csp-helper.ts
index a69bd2776..0bce81881 100644
--- a/apps/web/src/middleware/csp-helper.ts
+++ b/apps/web/src/middleware/csp-helper.ts
@@ -48,6 +48,7 @@ export const createCspHeader = (isEmbed = false): string => {
     (() => {
       const connectSources = [
         "'self'",
+        'blob:',
         'data:', // Allow data URLs for PDF exports and other data URI downloads
         localDomains,
         supabaseOrigin,
@@ -63,6 +64,15 @@ export const createCspHeader = (isEmbed = false): string => {
         'https://eu-assets.i.posthog.com',
         'https://*.cloudflareinsights.com',
         'https://*.slack.com',
+        // Speech recognition API and Google services
+        'https://*.google.com',
+        'https://*.googleapis.com',
+        'https://apis.google.com',
+        'https://ssl.gstatic.com',
+        'https://www.google.com',
+        'https://www.googletagmanager.com',
+        'https://www.gstatic.com',
+        'https://www.google-analytics.com',
         // Social media and video platform APIs for embeds
         'https://*.twitter.com',
         'https://twitter.com',