The latest update completely ruined my Firefox browser, lost all bookmarks and settings.

[rocketjsfq]

130.0 completely ruined my Firefox setup.  It installed and wiped out all settings, bookmarks, etc, I had.  Not possible to recover easily.  Do not know what happened to saved passwords.  This will be hell to reconstruct.  What have you done?

[Bookhunt]

I entirely support this complaint. I've lost a substantial number of bookmarks accumulated over a long time. The new format has no way of recreating an organised list of websites, easily accessible on a side bar as used to be the case. Instead we have irritating rows of commercial rubbish on the screen and sites that need to be "dismissed" to tidy up the screen. Thei product now seems like rubbish compared with what it used to be. Very sad.

[MLutman76]

My machine (iMac) recently updated Firefox to 138.0.1 which deleted all my bookmarks, history, settings, etc, over 100 bookmarks and recent history.   Is there anyway to recover my lost bookmarks and history?   

I cannot believe Mozilla would allow an update this "effed" up to be released.  If I can't recover my lost bookmarks and history I'm switching browsers to something else.  Mozilla has a big black eye from this as far as I'm concerned. 

[JRM]

I have lost everything!!!! What will Moizilla do to make this right?

[AnneR]

08/21/2025

Firefox decided to do some kind of update this morning and literally everything I have worked on for months is GONE. This is the SECOND TIME this has happened. Tbh I am absolutely livid... what the actual F is going on here?!?!? Are they f-ing stupid? This is disastrous!!

[Mapster127]

Same thing happened to me when I happened to close and restart Firefox 3 days ago (so not sure when the update that applied 142.0.1 was downloaded). On opening all tabs were lost. Fortunately I grabbed a session restore and got them back. Most of my browser settings were changed e.g Search Engine DuckDuckGo replaced by Google as default. Now I realise all my bookmarks (several years) are gone and my tab groups including all my most recent research. This is not the first time Mozilla has negligently damaged users with uncommunicated changes. I'm surprised this hasn't generate the storm the last one did. That one (private browsing behaviour) took weeks of hammering Mozilla in every forum to get the change reverted. And Mozilla never did apologise for the mess caused. I'm frustrated I probably don't have a useful backup for the most recent bookmarks - that's my mistake - but that doesn't excuse Mozilla for the bad behaviour. Yet again I'll have to look at moving to a browser with more reliable maintenance and more care for users. For an organisation and tool that have historically been of better service than most to the user it's sad to see that value lost by actions such as these. As ever the moral for users is trust nothing and backup everything. 

[DanteFili]

Just updated to 145.0.1 (64-bit) and this killed all my groups. It took to me months to build them. No way to restore them through jsonlz4, they have just disappeared. If there is one single thing that a platform/browser should never do is to kill user content. I have immediately set Chrome as default browser and will never use Firefox again in my life.

[GoogleEHSUJO]

Google wants to RUIN FF, I am never updating again.

[joeyd]

every complaint on this section is legit ,im  so pissed off how can a browser go in to my computer and change everything with no way to give it back to the way it was before ,i have no useable backk up i had the back up on a different drive  letter and it hasnot run in awhile ,..i lost all bookmarks from 2015 onward,all passwords all my history that i used all the time ,i dont use my desktop for verymuch ,i also lost the access to all my photos that im very attached to and videos too and while i tried to restor them i screwed up my computer even more ,...if i said i was pissed ,lets put than on a scale of 1 to 10,final score 99999999999 is there anyway i can lose this updated version and esr bull**bleep** and go back to the stupid version that i dont need to be a coputer geek to understand .i have not updated my firefox since last year i think i was using 127 i scrolled back to it in this user feedback section and saw the last 12 updates could all have screwed my system up now i cant even find a quick way to get back online when i shut off ...and theres more any browser i use doe not save anything i save no matter what it is ,i change my passwords and next time there gone i look in history and nothing is there my whole user experiance is completely undeniably fried everything i did forever last weak  has vanished ....how can you do that ,,,and access to get it back is gone if you dont help me fix it ,,really im thinking law suit ,you might as well came into my house and beat me and my family up ,rip out my heart because thats what you did im so sad,i didnt even know how it happened but after reading other complants i know it was not that i didnt change from windows 10 toooooooo 11 after micro**bleep**heads ,that i never used was the only thing there to get back online google would not even download but now i know who is to blame ,im going to say a prayer for all of you people  all my prayers get answer ,...before i knew who blew up my computer i prayed you all go to hell now i feal bad after so many years of great service you all ruined by stabbing me and all other trusting peaple in the back unless you can help me fix it i will never trust another internet company ever again ,in fact as much as i hate other browsers i will have to find another one that will work cause right now nothing does please help fix this im lost for any answers atleast try to help me ,,,im not perfect but i have never crushed users trust like you just did ....this is not ego driven ,im not begging im asking as nice as possible please help me fixmy computer or send me a check for a new one,thanks ,,,,joeyd  <josephdejesus1221@gmail.com>

[JffxB]

I don't know what percentage of this continuing issue gets reported, but not seeing any response or guidance from the 'global' Mozilla corp, makes me believe that they don't care enough to review such issues, or are incapable of a cogent, much less apologetic reply.
So I suggest that if they ever do acknowledge this issue they could add an alert of some kind before each update or re-release (or whatever seems to be the cause of these nasty events) with a helpful suggestion that, before allowing the update, how the user could save their current data set in some independently usable form. 😫