Problems since latest upgrade 141.0 23rd July 2025

[rondazz]

Firefox advised early today that upgrade 141.0 had been successfully completed. I operated my Windows 11 PC for around an hour after Firefox message and then turned PC off. Re-started PC some hours later only to find that all Bookmarks &  Toolbar had completely disappeared. Furthermore, I attempted to reload all Bookmarks etc. (saved elsewhere) but while Firefox indicated that Bookmarks had been saved apparently they have not and I cannot locate them anywhere within Firefox.  I conducted a "refresh" and re-booted my PC but without success in all attempts.  Unfortunately this action has caused the loss of all my extensions etc. As a result I am currently sharing my searching between Firefox and  an alternative search engine until Firefox matters are rectified (if at all possible). This is most disturbing and annoying. I have used Firefox solely for the past 20 years and this is the first time I have encountered such an annoying experience. 

Has anybody else experienced these problems/ and or found a solution.

[CyLuS_sEcToR9]

I'm having a similar problem; the update 141.0 deleted all my tabs and tab-groups. This is more than annoying. I can't even locate where they should be saved since Firefox has folders everywhere it seems...

Haven't found a solution, devs help us please!!

[rondazz]

Hi! Rondazz here again. My earlier post 07-24-2025 refers. When I conducted a "Refresh" on the 24th, it appeared my actions were unsuccessful but by mid-day on 25th my Firefox had appeared to return to normal. However, I am unsure whether I have lost any of my "add-ons" as I had not kept any records of same.  I have however, lost "Snipping Tool" .

[rondazz]

Hi! Rondazz here again (for the second time). Had been using Firefox satisfactorily for the past 4 hours today, when a few minutes ago all Bookmarks and my Bookmarks Toolbar disappeared again - and once again I have been unable to locate any of these. To compound the situation I am also unable to "bookmark" any sites.  This is very frustrating and disappointing.  Until the latest Update I had never experienced such trouble with Firefox in 20 years of association with them.   

[CyLuS_sEcToR9]

yeah great (NOT).

i'll be switching to Thorium. buddy of mine recommended it, tried it out on his laptop and wow, just wow.

byebye firefox, you were great... until you weren't anymore

[sw7fxY]

installed latest Firefox 141.0 , working fast on web pages display, much better than last version. Using 64bit version on Zorin O/S (linux)

[CyLuS_sEcToR9]

you're a fkin bot

[StefanSchmelzer]

Hello, I have similar problems after the latest upgrade.

Suddenly my add ons were gone, There is no Dark mode anymore, I lost snipping tool, aswell. 

My bookmarks are fine. 

Some sites do not load at all, specifically the following sites (with media player features): 

www.oe1.orf.at - the player does not work. 

www.linkedIn.com  - does not load at all !!!

www.youtube.com - problems loading and streaming content.  When the videos load, the rest of the page does not. 

I run Xfce 4.16.3 on Ubuntu 22.04.4 

I hope this will improve. 

Thank you, 

Stefan