Troubleshooting
Discover solutions for common issues and explore best practices to diagnose and resolve problems.
Website will not allow Firefox to display the page if another site has embedded it
This page explains the error: "Website will not allow Firefox to display the page if another site has embedded it"
Last updated: 05/23/2024
I've lost my Firefox Sync account information - What to do
This article explains what to do if you forget or lose your Mozilla account password and can't access your Sync account.
Last updated: 12/05/2023
Some videos won't play in background
Some popular video websites have changed their settings on the server side so that videos will no longer play in the background.
Last updated: 05/15/2017
Disable Firefox Sync on a lost phone or tablet
This article describes what you should do to prevent someone from accessing your passwords on a lost device with Firefox Sync.
Last updated: 10/29/2023
I can't play videos or audio on Firefox for Android 5.0 (Lollipop)
If you're using Firefox on your Nexus 9, you might have experienced a temporary issue with playing video and audio files. We'll show you how to resolve them.
Last updated: 03/06/2020
How to send a crash report on Firefox for Android
How to send a detailed crash report.
Last updated: 01/10/2023
