Firefox Community Forum

I'm too old and tired to try to find my way around the new update. How can I return to the previous version? Life was so simple. Now I spend more time trying to find things that I can't find than I do online doing something productive.

Please tell me there's a simple way to get back to the previous version and that I won't lose my bookmarks and links.

Hello, a recurring problem that's been bothering me for several months is driving me crazy, causing me to use Firefox less and less.

I regularly get the dreaded message "Error: Platform version xxx is not compatible with xxxx," which seems to have been around for years and still hasn't been fixed. Rebooting, reinstalling, or repairing the installation with every automatic update isn't a solution; it's just a nuisance.

The plugging is NOT updating and it's blocking me from watching anything on streaming. I've tried triggering the update by turning it on and off, by tugging on and off the "DRM" option in settings, by turning off the updates and then looking for updates... I went to about:config and made sure that all options were "true". What I get is an "error in downloading the update" that I can't fix.

Can someone help?

Yesterday (10/1/26) Firefox went through SEVERAL updates to v.157.0. Now, it behaves extremely buggy and locks up if I try to open more than one window. It was never this pathetic! I want to revert back to the previous version. Yes, I am running Win10.

Also, now it will not even close properly. I have to go into program manager to kill all of the subprocesses that have spawned. I DON'T LIKE THIS VERSION AT ALL!!!!!

How do I update Firefox on my rand McNally tablet When I factory reset it ,it went back to the original version and I can't get it to update to the version I had beforehand

After updating to Firefox 152.0.1 this morning I keep getting Error 7023 Service Control Manager each time I start Firefox. The error description states "The MozillaMaintenance service terminated with the following error: Incorrect function." The Mozilla Maintenance Service was set to Manual and I set it to Automatic but still getting error each time I start Firefox. I have read that the service can be disabled so what do you suggest I do to stop the 7023 error. Thank you.

Log Name: System Source: Service Control Manager Date: 6/18/2026 1:39:26 PM Event ID: 7023 Task Category: None Level: Error Keywords: Classic User: N/A Computer: DESKTOP- Description: The MozillaMaintenance service terminated with the following error: Incorrect function. Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">

 <System>
   <Provider Name="Service Control Manager" Guid="{555908d1-a6d7-4695-8e1e-26931d2012f4}" EventSourceName="Service Control Manager" />
   <EventID Qualifiers="49152">7023</EventID>
   <Version>0</Version>
   <Level>2</Level>
   <Task>0</Task>
   <Opcode>0</Opcode>
   <Keywords>0x8080000000000000</Keywords>
   <TimeCreated SystemTime="2026-06-18T17:39:26.8970149Z" />
   <EventRecordID>409659</EventRecordID>
   <Correlation />
   <Execution ProcessID="464" ThreadID="648" />
   <Channel>System</Channel>
   <Computer>DESKTOP-           </Computer>
   <Security />
 </System>
 <EventData>
   <Data Name="param1">MozillaMaintenance</Data>
   <Data Name="param2">%%1</Data>
   <Binary>4D006F007A0069006C006C0061004D00610069006E00740065006E0061006E00630065000000</Binary>
 </EventData>

</Event>

My version of Firefox is 108.0.1 -- I am running Windows 10 on a machine that Windows says is not capable of running Windows 11

My installation of Firefox resides on my D: drive. It uses quite a bit of space for cache and other things on my C: drive but it starts and runs on my D: drive.Now I am forced to update, but I can't get the installer to recognize an installation on the D: drive and update it. Instead it makes a new installation on my C: drive and I lose my appearance customizations, history and bookmarks.

I have never believed and cannot accept that an application absolutely MUST reside on the C: drive. It's lazy programming (something I used to do for a living). I can't believe Mozilla programmers wrote an installer that insists that Firefox must live there, so what am I missing? How do I tell the installer to find and update my existing application?

Thanks for your help. I feel as if I am missing something that ought to be obvious.

when updating from 154.0 to 157.0 I get a pop up window saying there is a helper that needs to be installed, but when I input my admin account details it gets stuck and won't continue the update (Firefox appears frozen in Activity monitor). The only way to sort this out seems to stop any updates by issuing the command:

rm -rf ~/Library/Caches/Mozilla/updates

from a terminal window. This way I can restart Firefox, but it did not update of course. Is there any solution to this? Thank you !

I would like to report abuse of Firefox users. The twice per session Update Bug has finally driven me to another browser. Mozilla has strayed far from it's user friendly heritage. I am so feed up I have moved on.

Desktop version update to 157.0.1 acted like a fresh install. Prompted me to import from previous browser. Firefox was my previous browser. I have my bookmarks backed up, but lost all my tab groups, which is a huge problem to try and recreate. Lost downloaded themes. Lost downloaded extensions. Why did this happen? I can't imagine it was by design.

After the last update a couple days ago Firefox does not come up correctly. Search doesn't work. Duck Duck Go seems to be the default search engine and Google is missing from the selection list when the left mouse button is pushed. I really don't know how to describe the problem. It does come up in troubleshoot mode more-or-less correctly. Something odd happened during the update. A screen came up with some sort of message about having run into some sort of odd problem and that it would have to stop and restart the process, which it did. Hasn't worked properly since.

I'm running Firefox 139.0.1 on Mac Sonoma 14.7.1.

Since FF V138, I've had this extremely frustrating problem where, approximately once a day and while the application is still running, Firefox seems to either auto-revert to an older version' 'or otherwise mess up the installation files. I don't get any notice this is happening until I try to open a new tab and it brings up the "You must restart Firefox" notice. When I click Restart, it pops up with "You've launched an older version of Firefox, so you won't keep any of your bookmarks because that would be unstable" error.

The only way I've found to fix it is to redownload the most recent install files, which, after the fresh install, will allow me to keep using Firefox with my bookmarks for the next 5-6 hours, before the whole process starts again.

I theoretically have auto-updates off; my settings are set to the other option, "Check for updates but let you choose to install them". Doesn't seem to make a difference. It only does this on my Mac; the FF install on my Windows machine works fine.

I really want to keep using FF. It's my preferred personal browser. But this is really messing with me! I was hopeful that 139.1 would fix it but same issue, so far.

Help! All my bookmarks have disappeared from the Firefox browser. I believe there has been a browser update done by Firefox. I found various ways to recover bookmarks and found a folder named 'old Firefox Data' on my desktop. But all files I try to import give me an error message stating that this file doesn't contain any bookmark data. I tried to import bookmark files and favicons.sqlite files. No luck. I now cannot access bookmarks accumulated for about 10 years. Really need to get them back into this new browser. Any advice highly appreciated.

Hello, I am still running an old WIn 7 media center because I have applications I need that are no longer supported elsewhere. Firefox ESR has been working just fine up until the most recent update - which repeatedly fails to install each time I start Firefox. Is there a location where this update resides? If so may I know this location and procedure to eliminate this errant update? Thanks!

Hello, I'm having some problems with updating firefox. It started a few months ago that I got a Pop-up every time I started Firefox about needing to update it. But when I click on the prompt to update it, it leads me to this website: https://www.mozilla.org/de/firefox/new/?reason=manual-update , and after clicking on the download button I get to this site for about a second: https://www.mozilla.org/de/firefox/download/thanks/ after which it loads this site: https://download.mozilla.org/?product=firefox-stub&os=win&lang=de which my browser can't connect to (aka just gives me the standard error message as if you entered an invalid URL). Today I got this website pop-up when starting Firefox: https://www.mozilla.org/de/firefox/welcome/21/ which leads to the same outcome as above. After that I tried to update Firefox by going to the menu -> help -> about Firefox, which searches for updates but then tells me that I have the newest version installed already??? Even when I try to manually install a new version through this site: https://www.mozilla.org/de/firefox/all/ I still get the same result. Please somebody help me out here!