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!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

can't sync firefox

  • 1 reply
  • 4 have this problem
  • 6 views
  • Last reply by pd4d10

more options

Dear support,

I need some help setting up my firefox sync.

I just upgraded from Windows 7 to windows 8.1 On my "old" windows I have a restore code for firefox sync.

Now on my new PC with the new firefox sync I can't enter a code anywhere and all of the sudden I have to have an account. I created an account but how do I get my "old" sync account back, I have a lot of important stuff added into that sync that I CANNOT lose, can you please help me recover that sync? I tried looking on the internet but I can't find a correct answer anywhere.

Regards, Jasper

Dear support, I need some help setting up my firefox sync. I just upgraded from Windows 7 to windows 8.1 On my "old" windows I have a restore code for firefox sync. Now on my new PC with the new firefox sync I can't enter a code anywhere and all of the sudden I have to have an account. I created an account but how do I get my "old" sync account back, I have a lot of important stuff added into that sync that I CANNOT lose, can you please help me recover that sync? I tried looking on the internet but I can't find a correct answer anywhere. Regards, Jasper

All Replies (1)

more options

You can copy the old profile folder

C:\Windows.old\Users\<yourusername>\AppData\Roaming\Mozilla\

to

C:\Windows\Users\<yourusername>\AppData\Roaming\Mozilla\

then set up new sync. The old sync is abandoned.

Modified by pd4d10