Diễn đàn hỗ trợ Firefox

Yesterday, 50% of my bookmarks were deleted and now I can't bookmark anything. I tried to restore my bookmarks to several previous dates, but I received the following message each time:

Unable to process the backup file.

I tried to bookmark different websites and no bookmarks are saved now. I updated to the latest Firefox today and no change.

Hello,

I just had Firefox overwrote a session restore I had open for a long time with a few hundred tabs. Is there any way to see prior session history or backup these sessions without manually copying the files? If not will these features ever be added?

Thanks

I use Firefox every day and have since the browser's very early days. I have a Firefox account, and am logged in when using it.

Typically, I have some pinned tabs (calendar, for instance) and also some tab groups (Container Tabs). There are usually a small number of open tabs. For example, this week, I have been googling spreadsheet formulas for a Google Sheet I am working on.

Occasionally, perhaps once every couple of months. when I open the browser, everything is gone. All the pinned tabs, tab groups, and the tabs I'd left open deliberately are not there. Just one tab (Google), is open.

I can re-open the container tabs and add them to the tab bar again, try and remember which tabs were pinned and redo those, but having to trawl through history to find the very detailed searches for spreadsheet formulas and work-rounds - is all very tedious and shouldn't be happening!

It has only been happening for at most a year, maybe seven or eight times in total, but those seven or eight times shouldn't happen.

I have searched for a way to restore it to how it was the last time I closed it, but cannot find any way to restore Firefox to how it had been.

I am using an a fairly new ASUS laptop (but it happened on my previous PC too), with Windows 11 installed and up-to-date. Firefox is always kept up-to-date too.

Any suggestions would be very welcome.

Hi Due to a corrupted profile following a Windows 10 to Windows 11 upgrade, I have had to get my laptop reset at a computer service business. They required copying everything off, clearing the hard drive and reinstalling everything. Mozilla Firefox was my default browser prior to this having to be done, however, Firefox was not reinstalled. I have just done that myself. Is it possible to recover the bookmarks I had previously saved to my old Firefox programme? Thank you in advance Gordon Carter

The last time Firefox updated I lost all my bookmarks. Tried using the restore tool and it didn't work. Tried restoring from my USB drive, didn't work either. Can you PLEASE help??

I opened my computer several days ago. Firefox updated itself sometime recently while my laptop was closed. Once I opened it, it made me create a profile to continue. Now ALL of my history is deleted. All of my windows and tabs are gone. There is no history beyond the profile it made me create to continue using it. Is there any way to get back the previous history? This is about enough to make me give up on firefox completely.

I updated Firefox for my laptop this afternoon and another Firefox window opened and I had 2 windows. I closed the original window. I tried to restore my tabs and bookmarks in the new window. My Recently Closed Tabs and Recently Closed Windows are greyed out in the "hamburger"menu. I have tried everything; trying to restore from my profiles folder on my laptop, trying about:session and at this point I am Totally lost and frustrated. I am asking for help :-) please to have what I had before. Thank you

I went away for a week, and during that time my iMac (apple desktop) turned off. When I rebooted it last night, Firefox loaded at the start as it has for years, but ALL of my bookmarks and activity history was gone. I've been collecting those bookmarks for nineteen years, and while there's a lot of useless stuff I've collected over the years, some of it is very important.

Please help.

when i restarted firefox as requested, bookmarks displayed across top of screen were gone. the suggested fix was no help. Said cause was a FF file was in use. It implies i have Win10. I have Win11. **************