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Firefox 94.02 under MacOS 12.01 regularly crashes

Dear Mozilla volunteer! I recently experience regular crashes of FireFox version 94.02 under MacOS Monterey. I have removed some add-ons and also "probleemoplossingsmodus… (read more)

Dear Mozilla volunteer! I recently experience regular crashes of FireFox version 94.02 under MacOS Monterey. I have removed some add-ons and also "probleemoplossingsmodus" did not help. Furthermore I uploaded various crashreports.

Where can I find help to solve this problem? Or is MacOS 12.01 the culprit and do I have to wait for an update from Apple?

Thanks for tour reaction! Kind regards, Miel van Hutten The Netherlands

Asked by Milowitsch 2 days ago

Last reply by Milowitsch 1 day ago

Biggest bug in all version Firefox browsers

A very serious bug in all Firefox browsers (it's been around for several years!). If you open multiple tabs (many tabs) in your browser, virtually all settings will not w… (read more)

A very serious bug in all Firefox browsers (it's been around for several years!). If you open multiple tabs (many tabs) in your browser, virtually all settings will not work, e.g. you won't open Options, Menus, various tasks, extensions, won't save your bookmarks, and many other problems. Although the browser opens a page and the Tab works! But everything else is NOT WORKING, even in Safe Mode or Troubleshooting Mode! I've reported this many times: No developer help! Windows 7 x64 Firefof Latest x64 version 20 GB RAM 4xCore CPU

Asked by nnina084 4 days ago

Last reply by nnina084 2 days ago

firefox keeps rolling back to homepage

firefox keeps rolling back to homepage. It also opens new widows automatically. Please find a solutiion for this, all work is lost because of this. Windows 10, Firefox 94… (read more)

firefox keeps rolling back to homepage. It also opens new widows automatically. Please find a solutiion for this, all work is lost because of this. Windows 10, Firefox 94.0.2 (64-bit)

Asked by sunoj1 5 days ago

Last reply by sunoj1 4 days ago

I deleted all my .sqlite

I followed something in reddit. Now I have all my accounts signed out. This issue has been going because neither for my Temporary Add-on was working nor the buttons I t… (read more)

I followed something in reddit. Now I have all my accounts signed out. This issue has been going because neither for my Temporary Add-on was working nor the buttons I tested. Is there anything to do to prevent this error in the future? I am starting to hate this browser as updates kept on-going and just slowly killing my browser ( especially losing pinned tabs for my important big projects in school )

Asked by hudson.lavida 1 day ago

Last reply by hudson.lavida 1 day ago

Crashing Nearly Daily, Reinstall to fix umppc.pdb umppc14210.dll Crashing Thread GeckoMain

Hello! I am in a work environment and I am trying to determine if there is something in our security systems that is preventing Firefox from running properly. Once Firefo… (read more)

Hello! I am in a work environment and I am trying to determine if there is something in our security systems that is preventing Firefox from running properly. Once Firefox is installed, it works the rest of the day with no issue but almost daily the morning after, it will start to open then instantly crash. When I check the crash logs, it shows in most of them: Modules - Filename: umppc14210.dll Version: 6.28.14210.0 Debug Identifier: B9143DE260194C88AB48EFD6782C9EAF1 Debug File Name: umppc.pdb Signed By: Microsoft Windows Hardware Compatibility Publisher

Some are this instead: Filename: umppc14105.dll Version: 6.27.14105.0 Debug Identifier: CE458B39D37A4C65A60024BBACED6EB31 Debug File Name: umppc.pdb Signed By: Microsoft Windows Hardware Compatibility Publisher

Crash Reasons from multiple crashes: Crash Reason EXCEPTION_ILLEGAL_INSTRUCTION Crash Address 0x00007ffa13aacf87 Crash Reason EXCEPTION_ACCESS_VIOLATION_READ Crash Address 0x0000000000000000 Crash Reason EXCEPTION_ACCESS_VIOLATION_EXEC Crash Address 0x00007ff90af7b040 Crash Reason EXCEPTION_ILLEGAL_INSTRUCTION Crash Address 0x00007ff8d4fbea86 Crash Reason EXCEPTION_ILLEGAL_INSTRUCTION Crash Address 0x00007ff8d4fbea86 Crash Reason EXCEPTION_ILLEGAL_INSTRUCTION Crash Address 0x00007ff8d4fbea86 Crash Reason EXCEPTION_ACCESS_VIOLATION_READ Crash Address 0x000005234242b500


The Module xul.dll listed is almost always first in the list multiple times. Crashing Thread (0), Name: GeckoMain Frame 0 Module xul.dll Signature GetDoubleWrappedJSObject(XPCCallContext&, XPCWrappedNative*) Source js/xpconnect/src/XPCWrappedNativeJSOps.cpp:222 Trust context

When using the dark theme from Firefox, Google searching seems to break completely as well as some pages will not load which may be related to this.

I have already tried uninstalling Firefox, deleting all of the folders, then reinstalling with a freshly downloaded installer (Even tried the beta one) with same results. It seems potentially MAYBE related to how long ago I closed Firefox before I shut down (Like Firefox is trying to save something to a secure location and times out, then it will work but if it hasn't timed out, then it crashes... or this is my guess)

The Signature seems to change randomly for the crash between crashes. ID: aea4dc0b-5fb6-42e7-994a-d2a960211123 Signature: GetDoubleWrappedJSObject ID: 34686de9-c473-4df3-bb6d-cb8160211123 Signature: mozilla::dom::XMLHttpRequestMainThread::OnRedirectVerifyCallback ID: aa6c916b-141c-491b-998c-a90bf0211123 Signature: nsLineBreaker::AppendText ID: 915ecd96-399a-4257-995a-77bb30211123 Signature: fdlibm::acos ID: 995d35ff-7beb-4230-98d6-4839b0211123 Signature: fdlibm::acos ID: e3144271-4bd4-4bcf-8222-9f6060211123 Signature: fdlibm::acos ID: 60dc1a34-a80d-4e9e-94f5-1ed530211123 Signature: nsDisplayCanvas::CreateWebRenderCommands


I really am tired of constantly reinstalling Firefox but I do not want to use Chrome or Edge unless websites require it.

Asked by ngruebmeyer 5 days ago

Last reply by ngruebmeyer 5 days ago

Firefox reacts slower and becomes sluggish quickly

A few weeks ago I noticed that browsing in Firefox started being slower / sluggish. It usually happens in YouTube or Twitch, but can also happen while scrolling with the … (read more)

A few weeks ago I noticed that browsing in Firefox started being slower / sluggish.

It usually happens in YouTube or Twitch, but can also happen while scrolling with the mouse in wikipedia for example.

Some examples: -When having a Twitch stream open, the stream is running fine, but when clicking and moving the volume slider on the player, it does not move smoothly, and with some delay. -When doing a bit more heavy browsing, sometimes a tab might get "stuck", for example, the twitch stream might start to buffer for a few seconds. I notice the buffering is not related to any bandwidth related issue. -Firefox reacts slower (or with a small delay) while moving between tabs, clicking on links, etc. This usually happens only after a few hours after launching and browsing with Firefox.

Most happen after a while since I launch Firefox. And by a while I mean maybe 2-3 hours, and I don't have a ton of tabs open. It becomes slower much, much faster than it used to in the past.

Now, sometimes it can take Firefox up to 30 seconds to close completely, before I can launch it again.

I had the same Extensions installed before these issues started happening.

I tried uninstalling Firefox completely, then manually deleting the remaining profile folder, and do a fresh install of the latest Firefox version.

I checked the Windows Task Manager, and it shows (14) processes under Firefox. Is this normal? I tried unticking the "Use recommended performance settings" and restarting Firefox, but it still reached (14) processes after a couple of minutes.


I am not sure if it is related to Firefox itself. My computer is 5 years old but functioning properly...

I did not check if similar issues happen on a different browser. I am just so used to Firefox.

I had a few weird bug in Windows 10, but those existed for a good while now, and are not similar to the ones I experience while browsing with Firefox. I didn't notice anything similar while watching video files in a Media Player.

I am not sure if it can be hardware related. All seem to be working properly...


I want to figure out what is causing this. If you need any more information let me know.

Asked by sata 4 days ago

Last reply by sata 3 days ago

The browser crashes frequently

The browser crashes frequently, even if I restore the bookmarks and some necessary plug-ins after reinstalling. there are 3 reports submitted by your interface. report i… (read more)

The browser crashes frequently, even if I restore the bookmarks and some necessary plug-ins after reinstalling. there are 3 reports submitted by your interface.

report id: bp-61a7e2c3-3ce8-4856-9941-587d20211122 bp-e7ef6793-584d-448b-ac6d-1c0a90211122 bp-4a81c954-4ee7-4726-b8cd-7105b0211122

Asked by David 1 week ago

Last reply by David 6 days ago

90.0.2 to 94.0.1 window-update problems

[Edited: Point (1) is now serious. Point (2) can be ignored. I have edited the question title to indicate that it still occurs in version 94.0.1. My latest post in this t… (read more)

[Edited: Point (1) is now serious. Point (2) can be ignored. I have edited the question title to indicate that it still occurs in version 94.0.1. My latest post in this thread identifies another symptom of the update problem]

I have been automatically updated to 90.0.2 on several machines (most 64-bit Windows 7), but there appear to be problems with the latest version. I can't see evidence that these have already been reported.

1) Window update. When the browser window comes to the fore (top of the z-order), or when resurrecting from a minimized state, it does not redraw the whole window. Usually, half is missing. However, a cursor-move event while over the window triggers a redraw.

2) I have just experienced CAPTCHA issues trying to get into an gov.ie website. Instead of showing me text to enter into the field, it just showed a gray square. However ,the same challenge works OK in Chrome (i.e. it's not a problem with the site itself).

Are these known issues? Is there a way to regress to the previous version?

Asked by ACProctor 4 months ago

Last reply by ACProctor 1 week ago

Firefox on Windows 10 Loads Multiple Versions of the Same Tab, Limiting Memory (RAM)

Several weeks ago, because it seemed to be a Gmail-tab-only problem, Firefox Support advised us to contact Gmail Support. It is now clear that the problem is with the Fir… (read more)

Several weeks ago, because it seemed to be a Gmail-tab-only problem, Firefox Support advised us to contact Gmail Support.

It is now clear that the problem is with the Firefox browser. The attached screenshot shows an example of an affected tab.

Please fix this. Multiple versions of the same tab waste RAM and other memory, especially on a limited-memory device such as a laptop.

Asked by JandNL 2 months ago

Last reply by JandNL 4 hours ago