Windows 10 will reach EOS (end of support) on October 14, 2025. For more information, see this article.

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

New Sync not working (/questions/1007210)

more options

my laptop motherboard died and wen i installed firefox on the new pc and log in on sync , it doesnt sync anything at all both laptop and pc had same firefox version

my laptop motherboard died and wen i installed firefox on the new pc and log in on sync , it doesnt sync anything at all both laptop and pc had same firefox version

Chosen solution

Sync is not a backup it is meant to sync and merge data between two profiles. Unfortunately unless there is a local back up of the profile the data will no longer sync. If the profile is present, it is possible to unattach the account by :

  1. clicking on the Firefox icon and on the attached account and selecting "Disconnect"
  2. (Note: make a back up if you do not have one already: Back up and restore information in Firefox profiles )
  3. then log back in about:preferences#sync
Read this answer in context 👍 0

All Replies (2)

more options

Chosen Solution

Sync is not a backup it is meant to sync and merge data between two profiles. Unfortunately unless there is a local back up of the profile the data will no longer sync. If the profile is present, it is possible to unattach the account by :

  1. clicking on the Firefox icon and on the attached account and selecting "Disconnect"
  2. (Note: make a back up if you do not have one already: Back up and restore information in Firefox profiles )
  3. then log back in about:preferences#sync
more options

Really smart idea erasing sync data wen you reset password NOT Of course there is no local backup if i lost everything there , wont use firefox anymore that's for sure , how such stupid decision was made is unbelievable