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Lost bookmarks after latest update

I'm trying to restore bookmarks after latest update. I get to the Import and Backup dropdown and pick Restore. there is nothing listed. I can go into my "C" Drive and fin… (read more)

I'm trying to restore bookmarks after latest update. I get to the Import and Backup dropdown and pick Restore. there is nothing listed. I can go into my "C" Drive and find my "bookmarkbackups" folder and see the files. How can I get it reinstalled?

Solved 1 1 10

Lost all windows and tabs

Firefox on my mac has been acting buggy lately. The last time I quit and reopened it, all of my windows and tabs were gone. there is no restore previous session available… (read more)

Firefox on my mac has been acting buggy lately. The last time I quit and reopened it, all of my windows and tabs were gone. there is no restore previous session available and the recently closed tabs and windows options are grayed out. How can I restore?

Solved المُؤرشفة 2 322

Please firefox help me I will never forget your kindness I am very very very sad............

I lost all my personal data on Firefox as soon as I changed the password and I did not know that you can lose everything that I had registered in the download box and the… (read more)

I lost all my personal data on Firefox as soon as I changed the password and I did not know that you can lose everything that I had registered in the download box and the previous archive. Now I am very, very mentally disturbed and I do not feel safe and I am very sad about what happened to me. I am crying now. What should I do? My psyche is really broken due to the lack of information....

Solved المُؤرشفة 3 129

All my tabs were gone when i opened firefox.

this is the second time when i turn on my laptop and open firefox but the tab section gets glitched with spaces between multiple tabs and when i restart the browser, ever… (read more)

this is the second time when i turn on my laptop and open firefox but the tab section gets glitched with spaces between multiple tabs and when i restart the browser, everything is gone

Solved المُؤرشفة 1 148

Bookmarks

The power went out in my area last night and When I turned my computer on this morning and opened Firefox, all my bookmarks are gone! It says the bookmark file is empty?… (read more)

The power went out in my area last night and When I turned my computer on this morning and opened Firefox, all my bookmarks are gone! It says the bookmark file is empty? I had many bookmarks that I use daily. How do I retrieve all my bookmarks I had in my Firefox account? Can someone help? Thank you.

Solved 3 109

Fix "The bookmarks and history system will not be functional" error message

I have been a Firefox user for many, many years. I started getting the Subject message: "The bookmarks and history system will not be functional" error message this even… (read more)

I have been a Firefox user for many, many years. I started getting the Subject message: "The bookmarks and history system will not be functional" error message this evening. I started to "Fix" this error based on the Mozilla Support page. Actually, I first tried restarting my computer and that didn't correct the problem. I then noticed I could "sign off" Firefox which I thought I'd do and sign back in. I didn't notice until after the fact that my Firefox account was tied to a very old email address I once used that is no longer active "commish3@bellsouth.net". When I tried signing back into Firefox using that old email account, it said a security code would be sent to that old email address. Problem is I no longer have access to that email account.

1) Is there a way I can sign back in and have a security code sent to my current email address: tad3.dickinson@gmail.com ?

2) Can you assist with restoring my bookmarks. Again, years of building these bookmarks that I'm very dependent on.

Thanks, Tad Dickinson

Solved المُؤرشفة 1 148

I accidentally deleted the "Today" subfolder that exists under the "History" section in Mozilla. How can I get it back?

Hi. I accidentally deleted the "Today" subfolder that exists under the "History" section in Mozilla. How can I get it back? I'm not interested in getting the internet … (read more)

Hi. I accidentally deleted the "Today" subfolder that exists under the "History" section in Mozilla. How can I get it back? I'm not interested in getting the internet history from today back, just the folder. Thank you for your help.

Solved المُؤرشفة 1 100

Firefox 144 Installed Today; Clobbered all of my Tabs. "History" is No Help

Something very bad happened to me today (11/3).... Firefox 144.0.2 was installed on 10/30/25, and everything has been fine until today. I don't know why or how, but AL… (read more)

Something very bad happened to me today (11/3)....

Firefox 144.0.2 was installed on 10/30/25, and everything has been fine until today. I don't know why or how, but ALL of my OPEN tabs (of which I have many--and have it fixed so they always re-open when Firefox starts), ALL went away.

In reading conventional steps to recover such from sessionstore-backups, those instructions sounded straightforward. However, even though ALL FIREFOX PROCESSES were ended, I could not copy the contents of the sessionstore-backups folder nor could I delete anything--EVEN THOUGH I am the owner.

Even after providing Admin perms.

I could get rid of profiles.ini, which initially proved diasterous, because then Firefox thought I was brand new, so ALL of my passwords saved through Firefox these many years, went "poof".

Fortunately, I was able to get that back, but I still cannot get all of my tabs back, and conventional instructions to do so aren't working.

After recovering from my heart attack for initially losing my passwords, I am breathing a little better right now, but it sure would be nice to get all of my open tabs back again. I don't know why I am not able to manipulate the files within sessionstore-backups. I think if I could eliminate the files in that folder EXCEPT for upgrade.jsonlz4-20251027123126, which possesses a 10/29/25 date, these should be the open tabs just before the 144.0.2 installation, and all should be right with the world, once more.

I have performed/examined many steps offered under this category, but most assume I can copy them elsewhere for safe-keeping and/or removing all but the one I want Firefox to "use". Because something is preventing me from doing this, though, I am being stymied in what ought to be the solution. As a test, I was able to copy files from a much older profile--so I can prove the basic steps SHOULD HAVE worked. Unfortunately, I cannot do the same with THE (more recent) folder in question. I can't get rid of parent.lock, either (and I have ensured no Firefox processes are running via Task Manager).

Repeatedly.

Something else is at work, here. Any help or assistance from community experts would be most helpful.

Thanks very much in advance.

-MG

Solved المُؤرشفة 5 127

My computer ran into an error and restarted and I lost my entire browsing history, bookmarks, extensions, etc.

My computer ran into an error and restarted and I lost my entire browsing history, bookmarks, extensions, etc. Now I have nothing saved and the only browsing history my c… (read more)

My computer ran into an error and restarted and I lost my entire browsing history, bookmarks, extensions, etc. Now I have nothing saved and the only browsing history my computer is showing is when I briefly opened microsoft edge. I regularly used duckduckgo, so most of my data is gone. Is there anything that can be done or is it just gone.

Solved 1 217

bookmarks

100% of my bookmarks have disappeared. I tried backing up to older version a month ago and still no bookmarks were found. I had over 2000 bookmarks. any suggestions?? Ma… (read more)

100% of my bookmarks have disappeared. I tried backing up to older version a month ago and still no bookmarks were found. I had over 2000 bookmarks. any suggestions?? Marty

Solved المُؤرشفة 2 49

Lost all my pinned an open tabs

Firefuxxed was refusing to open new tabs so I shut it down and restarted it (always fixes it) and all my pinned and open tabs were gone with no way to recover them, it to… (read more)

Firefuxxed was refusing to open new tabs so I shut it down and restarted it (always fixes it) and all my pinned and open tabs were gone with no way to recover them, it took me half an hour to manually restore the pinned ones one by one but not all of them as I cannot remember all of them let alone all the open tabs I had (hours of research gone down the toilet).

There should be a way to backup and restore pinned and open tabs so this doesn't happen, the history option does nothing.

OS: Linux Mint 22 fresh install from a week ago Previous version of Firefuxxed updated after this shamossel.

Locked المُؤرشفة 8 419

New profiles dissappeared after restart

I have been using old-style profiles for a long time, but they didn't work so well for me. The new profiles system was great - specifically that each one was a FF instan… (read more)

I have been using old-style profiles for a long time, but they didn't work so well for me. The new profiles system was great - specifically that each one was a FF instance that could be opened and quit independently of any others (and most importantly had a different icon). I setup 5 or 6.

But i quit all my FFs due to memory issues. Then after restarting a FF, it was an instance from the old profiles system and there was no profiles item in main menu (under three horiz lines top-right).

Going to about:profiles didn't show them (as expected).

I started from command-line to launch FF with Profile Manager and after selecting a profile that way, then there now a Profiles menu item. However it empty.

I had a look and there is a ` ~/Library/Application Support/Firefox/Profile Groups` that contains a number of sqlite files and each has a -shm and -wal file also. I looked in the profiles table for each of these. 1 lists all the new profiles I created and one points to default old-style Profile instance that opens (ie. Profiles/Main-Firefox-Window).

about:config - browser.profiles.enabled is true

I also noticed a browser.profiles.forceEnableRefresh but it appears to be undocumented.

My question: HOW can I restore my new profiles? I put some work into icons etc.. and of course their history, so i don't want to have to recreate them.

Solved المُؤرشفة 1 187