It seems like you're experiencing an issue where Firefox on Android isn't routing audio to your Bluetooth devices, while other apps and browsers work fine. Here are a few steps you can try to troubleshoot and fix this problem: 1. Check Bluetooth Permissions for Firefox Make sure Firefox has the necessary permissions to access Bluetooth or audio devices. Go to Settings > Apps > Firefox > Permissions, and ensure that Bluetooth and microphone permissions are granted (if available). 2. Check Sound Output in Firefox Some Android devices allow you to change the sound output for different apps. You can try changing the output manually. Use the volume keys on your phone while the video is playing, then tap on the gear icon or settings to check if you can select the Bluetooth device as the output for Firefox. 3. Clear Firefox Cache and Data Corrupted cache files can sometimes cause problems. Go to Settings > Apps > Firefox > Storage > Clear Cache. If the issue persists, you can try clearing data, but this will reset Firefox settings and may log you out of websites. 4. Update Firefox Ensure you are using the latest version of Firefox. There might be a bug causing the issue that's already fixed in an update. <a href="http://justfancytext.com/">Just Fancy Text</a> Go to the Google Play Store, search for Firefox, and check if there's an update available.