We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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

I installed and setup the Firfox Sync. It was disappeared in the Tools and Options after the Firefox is relaunched and need to re-install again. I'm using Firefox 3.6.10, OS Windows 7 Premium 64 bit.

more options

Firefox Sync has been installed in my notebook but when the Firefox relaunch again, the Firefox Sync cannot be found in the Tools as if it has not been installed and can't find on the add-on list.

Firefox Sync has been installed in my notebook but when the Firefox relaunch again, the Firefox Sync cannot be found in the Tools as if it has not been installed and can't find on the add-on list.

All Replies (3)

more options

Sync is built-in to Firefox 4, so you don't need the add-on.

Do you still see the add-on disappearing in Firefox 3.6.16, if you don't want to upgrade to Firefox 4?

more options

I have a similar problem. Most icons disappear on "Customize" Further the disappeared icons are also not available on the customized list. The address bar and the Google sear bar also gone.

more options