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System Software: Win11Ent_x64 v22H2 (b: 22621.2283) MFF v18.5.0.0

No matter what I try, my MFF keeps crashing at startup. For some reason, it tries to open 2 pages the windows at the same time, which is illogical. I deleted firstly my: sessionstore.jsonlz4 logins.json to no avail.

Then I tried to open MFF through elevated CMD with the command: C:\Program Files\Mozilla Firefox\firefox.exe -safe-mode Again, 2 windows pop crashing immediately.

I do not understand why all of the sudden, it tries to open 2 different instances at once. This makes no sense. I am out of ideas, having tried many an option found on Google, but which none give me a solution.

If anyone has an idea, I would be quite darn thankful. This MSEdge crap that I need to use now is not quite my thing.

Thank you. Ke'Ylan

This happens at random intervals, mostly when firefox is being left idle.

Since it starts >1000 threads, it easily fills ram and swap, then get killed by OOM killer. Hence no crash reports.

I'll upload a gist with OOM details from dmesg and journalctl, if there is a way to get debug info for this, please let me know.

When I try to connect to the Etsy website I get the following message "429 Too Many Requests". I have a VPN and I have to turn it off to be able to connect. I contacted Etsy and they said it was a browser issue. Besides turning the VPN off when I want to connect is there a fix?

This is a recurring problem. I have just been on to Vodafone who have tweaked my router as my speeds, download and upload, were very erratic, and upload speed often zero so connections failed. Sometimes my phone speeds were similar but not always. The Speedtest by Oopla desktop app also showed erratic results but often when they were OK the web-based test on Firefox was much worse, with upload speed zero. When I started this Firefox showed upload speed zero. Now Firefox shows upload 18Mbps. This variability keeps happening and is driving me spare, as even emails often fail to go through - I use Thunderbird. I shall see how things go tomorrow and tell you how it is going.

I contacted you the other day and refreshed which helped somewhat, today It would not come up aT all. I am contacting from edge at the moment. I am very frustrated. Is there a chance I could talk to a live person; this takes way to long?

Dave Fisher [phone# removed from public support forum]

I'm using my Firefox with Custom CSS with toolkit.legacy thing enabled. I'm using Firefox for my everything and I love it. But It keeps break my current profile then starts a new profile that everything has been reset. It keeps break my profile and starts a new profile. I lose everything... It's enough for me. I could not find any solution for it. If It's not fixed, I'll stop using this beautiful browser :'(

Same as the question.

The display shows some icons on the last tabs I opened but it seems only some basic website layout is loaded but all the details are gone. Like text, button borders, even the exit, fullscreen and minimize buttons. I have seen that this has been an issue for quite some time before so I am looking if there is a fix or a workaround. I have and Nvidia graphics card and drivers if that means anything. And my swap file is 20 GB and my RAM is 16 so the space shouldn't be a problem. It gets fixed when I turn off Firefox but not when I refresh tabs.

The crazy thing is that when I take a screenshot inside firefox (with firefox integrated screenshot option, like when I press right click and then take screenshot. I can see the text so it seems like it is a display problem but this only happens with firefox and not other apps.

Appreciate all the help. I will ask of ubuntu formums next if I don't find a solution here.

Thank you all for reading and answering!

I'm encountering consistent video playback issues on Firefox while running Fedora 38. The error message I receive when attempting to play videos from certain sites, notably LinkedIn and Twitter (now X), is:

• The media playback was aborted due to a corruption problem or because the media used features your browser did not support.*

Furthermore, when examining Firefox's console while attempting to play a video, I observed the following error:

• [Child 5999, MediaDecoderStateMachine #1] WARNING: Decoder=7fdb3c55a100 Decode error: NS_ERROR_DOM_MEDIA_FATAL_ERR (0x806e0005) - mozilla::MediaResult mozilla::FFmpegDataDecoder<60>::InitDecoder(AVDictionary**): Couldn't open avcodec: file /builddir/build/BUILD/firefox-118.0/dom/media/MediaDecoderStateMachineBase.cpp:166*

Steps to Reproduce: 1. Navigate to LinkedIn or X (previously Twitter). 2. Attempt to play any video content. 3. Observe the aforementioned error.

Additional Details: - OS: Fedora 38 - Firefox version: Initially 117.0.1, then updated to 118, both 64-bit. - This issue does not occur on Google Chrome on the same system. - I have attempted the following troubleshooting steps without success:

 1. Updated Firefox to the latest version.
 2. Enabled DRM content.
 3. Booted Firefox in Safe Mode.
 4. Disabled hardware acceleration.
 5. Cleared cache and cookies.
 6. Used a Flatpak version of Firefox.

This issue has significantly impacted my user experience, and I hope to find a resolution soon. Any assistance or guidance would be greatly appreciated.

Thank you!

Really too much PR_END_OF_FILE_ERROR

https://www.bbc.co.uk/news/uk does NOT have issues.

this error message occurs regularly ( and sometimes with amazon.de)

Please fix the bug that causes this, or allow a option to ignore the (non existent) error.

Hi all, the shortcut to close a single tab (ctrl+W (Windows) or cmd+W (Mac)) is not working anymore.

here is what I tried so far: - disabling all extensions (via restart in safe mode) but to no avail - reinstalled Firefox but the problem persists - verified, that the command is indeed cmd+W and was not changed by accident - all other shortcuts are working well

NOTE: I can see that when I press cmd+W, the "file" tab up above on the Mac menu bar flashes for a brief moment, as if the system detects the shortcut. But the tab stays open.

Any other ideas I could try out?

I have 4 tabs open, and my computer is running and running... come to find out, FF is running 17 tasks in the background... why? And what can I do?

Thanks!

my specs Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz 2.21 GHz 16.0 GB (15.9 GB usable)

Firefox seems to crash repeatedly and generates no crash reports, just freezes up my pc. It works in troubleshooting mode but even after refreshing, the problem persists. Surprisingly, it will consistently crash if I go to `about:support` (except in troubleshooting mode). Any help would be appreciated!

I cannot access my bank on my computer. I have access to everything else. When I input my credentials all it does is continuously load. What seems to be the issue? I can access my banking through a different browser but not Firefox.

Hi everyone I have a question I have used Firefox as my default browser for many years. This mourning I started getting “Secure Connection Failed An error occurred during a connection to www.youtube.com. PR_CONNECT_RESET_ERROR Error code: PR_CONNECT_RESET_ERROR The page you are trying to view cannot be shown because the authenticity of the received data could not be verified. Please contact the website owners to inform them of this problem.” When I tried to go to any site other than the homepage. I find it very suspicious I can only use Bing to get on the web. Anyone know what is going on.

I am locked out (padlock icon with red slash) of all the websites (except gmail) that I use all the time. I did a “refresh Firefox” but that did not help. What could have caused this all of a sudden? HELP!

been at it a week everywhere. how can I change the resresh rate about 60MH. desktop preferences is greyed out. command line didnt do it. not a programmers, please keep it simple. was hoping a GUI would make life easier. its blocky on a slow screen scroll. tried loads everywhere. I think it might not happen in chrome.