Firefox Community Forum

I had a power outage occur recently and when i booted my computer again I found that somehow my Firefox account was disconnected. All of my bookmarks and history gone, but things like accounts and site preferences were kept. The problem is that firefox is not saving my history and bookmarks cannot be made. I have checked common causes for this problems, like not activating sync and turning off "remember history", settings which were set up correctly.

I'm using firefox in ubuntu. A couple of minutes ago Firefox crashed. I restarted to a completely new Firefox. All my tabs, extensions, saved passwords, etc. were gone. This happened to me a few weeks ago. That time I found a solution: find a back-up of the old profile and manually restore it. I tried to reproduce that solution this time, only to find that there are no back-ups at all of my previous session. Is there a solution to this problem?

When I opened my Firefox browser this morning, all of my bookmarks were gone, the ones in the bookmark menu and the ones on the toolbar. I am unable to get any bookmark to save.

I've been a loyal Firefox user since version 2.0. but to this day you guys have not made it easier for users to restore Firefox profiles. We in 2026 should be able to do the following directly from the user interface of Firefox. honestly its really taken me a long time to voice this opinion but it makes the app a tad less user friendly. i mean its easier to import from another browser but you have to pull out and search all sorts of folders to import from an old Firefox installation or a windows refresh (windows.old). Please, please implement this ASAP. we users have waited too long.

1. display a list of profiles (even from windows.old after a windows refresh) 2. automatically import that information 3. append existing bookmarks from the bookmarks backup if i choose to. 4. be able to browse the bookmarks and show the most recently used ones 5. be able to even reinstall the existing plugins (this one is minor)

the image attached is exactly showing what happens after a windows refresh. this feature is also great for administrators.

Regards, Shomari Ryan

So before few days firefox decided to automaticly update. after thet no pasword was saved in system. undery system data 2 files: logins.json-1.corrupt/json-2.corrupt without any data in files (but size is 130KB). i need these logins ASAP.

After I renamed one of the sessionstore backups to sessionstore.jsonlz4, It says move it up one folder, & restart.

My path is ...APPDATA\ROAMING\MOZILLA\FIREFOX\PROFILES\8TWMWQ0P.DEFAULT-RELEASE\SESSIONSTORE-BACKUPS

I put new sessionstore.jsonlz4 in default-release folder & then profile folder, , no luck on restart.

Thats when I reread the support instructions & saw my DISTRIBUTION ID is blank, so I dont have Microsoft Store copy to begin with.

It is doing a restore previous, but just two tabs from a 2nd session that was open at same time (oops on me) & , I am trying to get back to 40 tabs I was using.

All but 2 of my previous saved windows have been lost. They are not recoverable or present when trying to use "Recently closed windows." How could this happen? More importantly, how can I recover them? They contain numerous tabs that will be impossible to recreate from memory.

I'm sorry to say all my groups and tabs were not opened this morning, and the restore session option doesn't even show up in options!

The groups are not even in my history even though I used them yesterday!

How can this be?

I don't believe they're all gone. I know sessions are backed up...

Please help

thanks

I am attempting to copy a FF profile from a Windows 11 machine I created it and am using it on to a brand new windows 11 machine on which I have also just installed FF on. Both machines are at FF 150.0.3. I have done a search online for the methods to do this but they have both failed for me.

The first one I tried was simply copying the profile from the existing (source) machine to the profile folder in the new machine however FF never recognized the copied profile on the new machine (I am using profile manager on both machines).

I then tried copying the profile using the method we used to use a while back to copy profiles which is to let profile manager create a new profile in the new machine, open FF so that it creates that new profile in the profiles folder then delete the contents of that profile leaving it as an empty profile (with the name of the newly created FF profile). Then, I selected and copied the *entire contents* of the source profile I was trying to copy and pasted them into the newly created profile I had just zero'ed out on the new machine so that the new profile now had the exact same contents as the source profile. I knew this copy was successful because it took a while to copy all of the data from the source profile to the new profile and the indicator showed it copying.

Again, FF did not recognize the new profile when I opened FF with the name of the new profile in the prof mgr.t.

Could someone tell me what I am doing wrong or what the problem may be? One problem I had when I first copied the source profile to my 32GB USB drive was a message saying "inbox folder is too big for destination system. " The source profile is 12.72 GB so there is plenty of room on the USB drive for it to fit. I have no idea why FF would have an inbox file so I just skipped it. The rest of the profile copied to completion once I did that but its size after copying was now only 7.65 GB, about 5 GB less than the original. Could this be my problem and if so, how do I fix it? Thanks for any help.

My mac froze, force quit did not work, unplugged it, turned it back on, all bookmarks were gone and not able to add new ones. Would like to restore old bookmarks and add new ones.