Diễn đàn hỗ trợ Firefox

I rarely used the Mozilla.org site. Use Firefox for about the last 20yrs, love you guys. Logged onto my Win10 laptop, 22Aug2025, about 7pm GMT+1, clicked on Firefox icon, got a little update window, it flashed, disappeared, did not seem to fully update, the screen came on for about 5sec, a flash. Then error messages each time I tried to go onto Firefox. First time this ever happened. When I reinstall I had to spend hours trying to get SYNC to retrieve my passwords, and bookmarks. Also a first, never had this problem previously. Now my history is gone as well as all the sites saved to my Firefox Home Page. What is going on? Also, these messages, I cannot find them in my ACCT. They just do not show up. If anyone answered me, I cannot find the replies. Were you hacked?

New computer. Cannot import bookmarks or passwords. cannot save bookmarks or passwords. Will be forced against my will to use Microsoft. Sync won't easily connect old computer to new. Only computer to phone. Help ! old win 10 new win 11

I use firefox on 3 devices, ios, windows, and mac. I want extensions to sync across windows and mac (I know ios doesn't do that). When I first got firefox on my mac, all my windows addons synced over when I signed in but now addons that I add on my windows does not go over to my mac no matter what. I already turned addon sync on and off several times on both devices and manually hit sync multiple times on both devices as well. help?

I am positive that I've been signed into a Firefox browser account for the past several years (to Sync my favorites, etc.) However, my laptop recently crashed and, when I signed into my Firefox account on my new computer, the bookmarks that populated are YEARS old. I'm not sure how this happened. Can anyone help?

Hi,

TLDR I changed the main drive, a full clean installiation. And when I sign in in the browser it doesnt sync anything. Back when I had to change the former main drive the sync function worked perfectly. So I dont know why is just not works anymore.

Thanks.

I think I did everything on the old computer, and created a recovery key. on the new computer I signed in but, the only email confirmation I received was for the old computer. Signing in from the new windows 11 computer led to being signed with windows 10 as shown under my account.

I recently got a new PC, and all my information was erased from it. I thought it wouldn't be a problem, as I expected to get everything back by logging into my account. However, after trying to sync my account for hours and searching on Google and YouTube for solutions, none of my information has returned.

When I contacted the person I bought the PC from, he said he couldn't help because I had forgotten to do something, possibly related to a Firefox update. I'm devastated and was hoping someone here could help. Is there a moderator or administrator who could assist with account recovery?

The Firefox browser on my computer suddenly wouldn't open, so I uninstalled and reinstalled it. After logging into my account, my original bookmark list disappeared. I also have Firefox on my phone, but the bookmarks won't sync to my computer. What should I do?

As in subject ... None of my bookmarks (for instance) in my previous browser on an other computer will show up. I have tried to manually sync but nothing happens ...

Best, Johan

Dear Firefox Support Team,

After reinstalling Firefox and logging into my account, my saved passwords, bookmarks, and other data have not synced and are missing.

I have confirmed I'm using the correct account and that sync is enabled for all data types.

Please advise on how I can recover my information. Thank you for your assistance.

Sincerely

I have multiple devices all using Firefox with the same account. On one of the devices I swapped the motherboard and since all payment methods in firefox disappeared. Syncing is active across all devices. On all other devices the payment methods are still available.

On the device with the new motherboard, I tried to disable payment methods sync and re-enable it but the payment methods list is still empty. How can I restore all the payment methods on this device? Why they are not syncing?

Thanks