Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Sync Firefox

more options

Tried syncing Firefox Windows 11 (version 21H2) with Firefox mobile browser (Firefox 105.0) and get the following message: 500 Error Oh dear, something went wrong there. We've been notified and will get working on a fix. I have a iPhone 12 Pro. iOS Version: 16.0.2

Tried syncing Firefox Windows 11 (version 21H2) with Firefox mobile browser (Firefox 105.0) and get the following message: 500 Error Oh dear, something went wrong there. We've been notified and will get working on a fix. I have a iPhone 12 Pro. iOS Version: 16.0.2

All Replies (1)

more options

I have this problem too.