Firefox Community Forum

My computer ran into an error and restarted and I lost my entire browsing history, bookmarks, extensions, etc. Now I have nothing saved and the only browsing history my computer is showing is when I briefly opened microsoft edge. I regularly used duckduckgo, so most of my data is gone. Is there anything that can be done or is it just gone.

I need help with a problem that has tortured me for weeks. I use debian 13 with plasmakde. I don't know why, but when I connect to a wifi after some time it doesn't work anymore ONLY with Firefox. I can perfectly use any other app which requires internet but firefox. Sometimes it gives me the error "The connection has timed out", sometimes the error "Unable to find the proxy server" (even if I selected no proxy in the network settings). I searched online but I couldn't find anything helpful, so I can only hope to find a solution in here. Thank you very much in advance!

Dear Mozilla.

Yes, I'm using the dreaded Windows 10, I do understand it's at end-of-use, however this prob's been happening for ages. It's just got a little worse lately! (I've also got another hard drive with Windows 7 on it I swap the Windows 10 drive for sometimes. And we don't talk about the Windows XP hard drive with my music software on it. AARRRGGGHHH!!!! But the everyday drive with this problem is definitely Windows )

I don't use masses of extensions, just a VPN (which is there but not used a lot!) and is Proxy VeePN (that's its name, blame the designers, not me!) When I'm NOT using Firefox for a few moments, I hear the fans speed up, the hard drive spins like it's about to take off (old computer here!) The moment I touch the mouse, the fans all slump back to normal and the red 'HIGH USAGE' mark against Firefox vanishes back down to 'LOW'. Which makes it annoyingly difficult to analyze what's happening cos the moment I touch the mouse to find out what's happening, it stops happening!

Despite the above and its memory addiction - left to itself it munches memory like me with a crate of chocolate bars! - I do love Firefox best of all the browsers. I kinda know what causes the memory problem, by the way. I don't know all the techie terms but here's what's going on. Imagine you've got a house with an untidy kid in it. Every time one room gets too messy to use, you move into the next room. Eventually you run out of rooms. Then you restart the house back from day one, all the rooms are tidy again and you can use them all individually and happily - until Untidy Kid turns back up!

I'm on Firefox 148.0.2. If you've got any ideas about the CPU usage, I'm [email removed]@hotmail.com. It doesn't seem to matter what websites I've got in the browser, it just does this when I've got it parked in the background, it's like it's twiddling virtual thumbs through boredom cos it's not being used.

Yours respectfully,

Chris.

not a real question and not waiting for answer.

the "Open all in tabs" menu that appears at the bottom waiting for you to click on it by mistake. we need a way to remove that option while also disabling the middle button over the folder to open all bookmarks over the tabs. It also should be a default because been using firefox since version 1 (previously Netscape Navigator back in 1998) and I rarely had the need for something like that.

Firefox under linux x64 v 148.0.2

Linux madcat8.local 6.12.30 #1 SMP PREEMPT_DYNAMIC Thu May 22 18:38:20 CDT 2025 x86_64 Intel(R) Core(TM) i9-14900K GenuineIntel GNU/Linux

asked chatgpt and it suggested some fixes but apparently userChrome.css is actively being ignored. from the look of things, seems like I will have to stick to an specific version like I had to do with Thunderbird after version 102 where ugly UI changes were implemented.

have fun.

Am trying to access a TV site and the site appears as a page but does not provide any functionality for days now. Have contacted the site and followed their advice without any results. Could this possibly be a Mozilla issue?

The site address is https://www.ertflix.gr/#/show/Home%20Guest

Thank you

Whenever i try to open YT Videos or other in-browser videos in Full-Screen, the video only fills the screen to like 95%. The top and the left have a small bar, which just shows my desktop background. (See att.)

Closing the Full screen window and resizing the firefox window, repairs the issue. But after a restart it happens again.

Enabling hardware acc. kinda fixes it, but not consistently. And i would prefer to not use hardware acc.

A reinstall did not help and i dont seem to be the only one with this issue.

Hi! I love Firefox, but on updates when my account signs out. I also lose all my Firefox profiles. Even when I sign in again, and sync everything on my Firefox account, I lose my primary and secondary profiles. Whilst it restores my bookmarks and extensions on my account. I lose my bookmarks etc. on my secondary profile.

I'm using FF on both Windows 11 and android, but this problem only effects Windows 11.

Cheers :)

I've got constant crashes jn last update Firefox 148.0.2 (Desktop). Often it happens when Google Meets launched in browser and i started switch between tabs or another applications. In Widows logs i found this error: Имя сбойного приложения: firefox.exe, версия: 0.0.0.0, метка времени: 0x00000000 Имя сбойного модуля: unknown, версия: 0.0.0.0, метка времени: 0x00000000 Код исключения: 0xc00000fd Смещение ошибки: 0x00007ffce9d07286 Идентификатор сбойного процесса: 0x0x3F64 Время запуска сбойного приложения: 0x0x1DCB6A7BAE6121F Путь сбойного приложения: C:\Program Files\Mozilla Firefox\firefox.exe Путь сбойного модуля: unknown Идентификатор отчета: 1a851f87-1b94-4270-8d86-a6850200a62b Полное имя сбойного пакета: Код приложения, связанного со сбойным пакетом:

Installed system Windows 11

Actually, I need to add sinhala language to the Firfox transalator. There isn't sinhalese to translate any kind of website or other article etc. So if i can add sinhala language to the firfox translator it can be verry helped full and usefull for me. So i kindly inform you to send me any meterial or technical information to fix that.

Thank you.

sincerely, Eranga Samarakoon.

There is an issue with MKV video playback with MP3 audio track in FireFox. The problem is that MKV video plays MP3 audio track without any sound. With AAC audio track the problem is that MKV video initially downloads whole video and only then plays it. In comparison with MP3 and AAC the benefit of MP3 is much better quality and it starts playing without downloading whole video like MP4.

It would be nice if you add support MKV video with MP3 audio playback.

Video file link: https://v01d.have.lv/vp/movies/test/fm/al.mkv

Current behaviour in fullscreen mode: When I move my mouse to the top of the screen The tabs appear and the whole website content gets shifted down. It's ugly and distracting. Desired behaviour: The tabs appear as an overlay and part of the website content is hidden underneath them. No transitions.

What css js should I modify to achive this, any help? This prevents me from using firefox in fullscreen mode and saving space.