Firefox Support Forum

I have a very good PC (5800X3D, 7900XT, 32GB DDR4 3600), but Firefox (either the normal, canary and nightly version) can't play smoothly any 4K video (like the Borderlands trailer: https://www.youtube.com/watch?v=lU_NKNZljoQ ). 1440 and lower resolutions are fine, as are 4K videos on Chrome and Edge. FWIW, my CPU during 4K playback is barely used (1-2%), and my GPU's video codec (VCE) is used by around a third. Disabling HW accel makes things better, as it still stutters but it's (barely) passable. I already tried creating a new profile, but still it's the same.

Hello,

I have a problem with Firefox on Linux, doesn't seem to be distro specific as I've tried Manjaro/Ubuntu/Neon, when using KDE in that when listening to music on YouTube music my computer will go to sleep after the elected time. On KDE you can see which applications are preventing sleep and/or screen lock, other applications are listed here but not Firefox.

When playing a video everything works as expected.

I would investigate myself, but I don't know where to start so if someone can point me in the right direction or offer any insights?

Currently using: KDE Neon KDE 6.0 Kernel 6.5.0-21 Wayland

I just recently had Firefox updated, and I'm already having problems regarding notifications. When a notification starts up while I'm typing, it takes me out of it and I have to click back in. I had to turn them off temporarily to avoid flow breaking. This never ever happened before the update as the notifs worked perfectly fine w/ no interrupting. I also noticed in the taskbar, each notification is treated like a new browser window for some reason. This may be related to my current issue.

I noticed my laptop was being slow, so I looked at the memory usage. Firefox was using a whopping 5GB of memory on Windows 11. I then looked at about:process and it reported that extensions were using 4GB. I disabled each of my extensions and it still said it was using 4GB of memory. I then uninstalled two of them and re-enabled some extensions and it dropped to 781MB. This is still to much in my opinion, and I want to know how to figure out which extension is being so wasteful. Even a technique on how to figure it out would be appreciated.

Often I open a new tab & it's bugged. (It displays fine but the "right click" menu doesn't work.)

The fix is right clicking the tab itself (at the very top) & then clicking "reload tab".

Is there a hotkey for this instead? I hoped ^{f5} would work (control f5) but it didn't seem to.

How can I turn this message off? Some sites I visit give me that message, it shows up when I'm typing a reply to something which pushes the page lower and fouls up my ability to keep typing, then if goes away, comes back, goes away ... I just want to kill the message entirely. I'm not worried about speed, there's nothing to fix, I just want the message gone.

Every time I open a youtube video in fullscreen, firefox crashes. `about:crashes` says "No crash reports have been submitted."

Some information about my system:

• Firefox version: 122.0.1 (64-Bit)
• Macbook Pro M2
• MacOS Sonoma 14.3.1

If there is a way to get more information that you would require (like logs) please describe how I access them, so I can share them.

Hi there

I have found that certain websites aren't loading properly and that images aren't being displayed whilst the majority of pages are loading properly. Can someone help me with this please?

This is the error message.

'An Error Occurred

Oh, no! It looks like an unexpected error occurred. We've already notified the site administrators. Please try again now, or in a few minutes.

I have tried resending numerous times since last night with the same result.

Version 122.0.1 Firefox Release February 6, 2024

I am using Firefox 122.0.1, Windows 11 with all latest updates. Recently my HP Laptop has been slow to respond. I rebooted and opened task manager. I started Firefox and it was using about 1500 MB of memory. I closed some tabs to try to recover some memory. However, Firefox kept taking more, more and more. After 15 minutes, it was at 10,000 MB and climbing, and my system was using 99% of memory. I don't believe Firefox did this in the past and this is clearly not working properly. Any ideas?

Google search no longer works on Firefox. Other browsers have no problems. Changing the default search engine on Firefox works (eg Bing), BUT. It can now find Google Maps, but Google Maps cannot find a location, because it uses a Google search. I tried the fix in about:config, but it had no effect.

I've recently installed "OneTab" extension and right after this my firefox stopped rendering (meaning it shows in the doc as if it is running, but there is no application that can be found on the screen)

I've read articles about problems with extensions so I deleted the whole firefox folder in the "username/library/application support" as I couldn't find anything connected to the onetab extension.

I've also reinstalled firefox both from brew and by downloading from the official site of mozilla. Of course, I've restarted the system a couple of times.

Help will be appreciated. Thanks in advance.

My system is macOS Sonoma 14.2.1

Hi. When Windows 11 was initially released, certain substantial feature of the Windows taskbar known from before was missing. I'm talking about 'Combine taskbar buttons and hide labels' and the option to set it to 'Never' (users tend to set it this way to always see the program icon along with it's label, not just the icon). At this moment, the feature has been available in widely released build of Windows 11 for months (Microsoft returned it after rewriting the taskbar code and after many complains), but it is not working correctly in conjunction with Firefox. When I close all windows and tabs of Firefox and restart the browser, only its icon is visible on the taskbar, not the label. Only when I open one more Firefox window, it starts to work as it should. Is it a known issue? Can we expect a fix to be made soon? Thanks.

I am using Firefox in a Linux environment with multiple workstations, where I may be logged into more than one workstation at once. The workstations have an auto-mounted home file system such that my home directory (including my Firefox profile directory) are shared.

Because of this, when I try to launch Firefox on a second workstation, I get an error saying "Firefox is already running but is not responding". I have read the support articles about this issue, and other community support threads, but none of them address this use case.

I wish to use the same profile, so that I still have all my bookmarks and such, and have them continue to stay up-to-date. How can I do so in this environment?

why are some of my YouTube videos not showing up at all in FIREFOX? also says I don't have access to "community tab" on Youtube which I do. None of these problems with GOOGLE CHROME - why is Firefox being so glitchy? its become a terrible browser.

I asked this question about 115.4.1 and was told to try in safe mode. However I cannot connect to my mail servers of which I have 2 and Gmail when in safe mode. Please look into the resource handling problem with the new Thunderbird under Win10.

1) Whenever I open Thunderbird the Gmail messages apparently get refreshed taking several minutes. I have cleaned up that inbox and limited to 366 days of mail.

2) I spent hours moving mail from past year from my other accounts into local storage. You no longer can scroll and block select more than about 20-30 messages at a time regardless of the background activity 1) above. The program requires you to repeatedly release shift key to grab more than a few messages. If you are able to grab say 1000 messages, and try to move them, the system chokes and does not respond.

3) Any background activity impedes the ability to scroll the inbox.

The new versions are crippled in some way as far as resources. The older version was more tolerant.

Please listen to complaints. Putting in safe mode I cannot troubleshoot. It is also very difficult in Win10 to follow instructions to safe mode unlike previous OS.