Firefox Community Forum

After the latest auto update all of my history, tabs/windows, and bookmarks were deleted and I can't recover them. I have tried importing bookmarks and it does not allow me to upload an old data file and I can't restore my previous session. I tried checking both profiles but neither had my information saved and now when I open the about:profiles says "Another copy of Firefox has made changes to profiles. You must restart Firefox before making more changes."

I'm scared to try anything else because I don't want to mess anything up further but I really need my tabs and history back.

I restarted my computer and then reopened firefox and it had updated and I noticed my bookmarks were gone but my windows/tabs were open, so I tried to choose a file on the bookmark backup and nothing was happening so I restarted and after that all my history and tabs were gone and I couldn't restore them.

I am looking to Restore yesterday Firefox have lost all my pin tabs when I opened this morning the browser how can I get my old stuff back? Please help me out. Thanks

Firefox updated to v144.0 and deleted ALL bookmarks in the process. ALL troubleshooting efforts described by Mozilla are not accurate and do not resolve the issue. Given the >25% ratings on those trouble shooting pages, I'm betting a LOT of others have the same problem.

Can anyone provide ACTUAL help in restoring my bookmarks?

yesterday i had all my stuff like every other day, and for some reason i randomly got logged out of alot of my accounts. Now i woke up this morning and the entire browser was reset. no bookmark shortcuts, no tab collections, all account locked out for no reason, what's going on?

I don't have any backup for this, and i didn't think i'd need it, because i'd never delete all ym data for no reason.

Is there even a way to get it back?

After updating to Firefox 147.0.3 all of my browser history (along with open tabs at the time of updating) is lost. I just updated to Windows 11 workstations (plus a couple of older Windows 10 workstations) to the current (Feb 2026) updates too. However the history data was lost before the Windows updates. I noticed that with the previous update of Firefox that saved login information was also lost. Who is doing your program updates, a chimp?

In the past when an update was done the browser would open back up with all of the previous versions session tabs in tact. But not now.

I've lost several tabs of research that was being done. Based on what has been happening, I will HAVE to change to some other browser. This is a shame as I've been a loyal Firefox user since day one. Good bye Mozilla and Firefox.

I deleted a profile not knowing it would delete everything I had. How can I undo it? I didn't want Firefox Profiles, it was forced. I deleted it, and everything just got deleted. Can someone please help revert this? Thanks.

Hi. I have used Firefox for years and had a well-organized set of bookmarks (over 100!) and al my associated passwords saved. I was using them just fine last week but when I launched my computer this week, all were gone. I noticed that a new version of Firefox was installed on the 14th and when I launched on the 15th, nothing was there. Instead, I got the yellow banded message that many users saw saying that bookmarks may not be available. I followed the instructions and tried following several methods to recover my bookmarks but nothing has worked. Can I revert back to a version where my bookmarks exist? This is confusing and aggravating beyond words because all these methods seem to offer slightly different approaches. In addition, the only backup folder I can locate is dated Oct 15th, AFTER the update that wiped out all my bookmarks.

FireFox browser closed and when I opened it all my bookmarks are gone, all of my history is gone everything is gone as though I never ever used firefox in my life.

Hi customer service, please help me to restore firefox data & tabs before today. my firefox update this evening crashed & unable to restore. Million thanks

some STUPID profile pop up occurred .... please choose .... I did than I LOST ALL of my browsing history and bookmarks !!!!! How do I recover ????????????????

Signed .... PISSED OFF !!!!!!!!!!!

When I restarted my computer, I was signed out of Firefox. I didn't remember my password and didn't realize creating a new one would deny me access to my bookmarks.

Can I recover my bookmarks? The restore function only lists today as an option after my new password was set (empty). I have no recovery key.

I have years of bookmarks that have disappeared and my history is missing. Firefox opens with the tabs that were open when it shut down. I really want my bookmarks back.