Firefox Community Forum

For the last day I've been having a problem with FF slow to load. I've tried the troubleshoot mode with little change. When it does load I can have problems with certain web sites loading e.g. Youtube, MSNBC, AOL mail etc. It's never consistent. The cache is clean and I've saved all the relevant cookies, I checked my internet provider and they are having no problems and I don't seem to be having any internal hdw issues e.g. ethernet cable connections etc. I reinstalled FF-not a clean install and seemed to help for a time. Do I have any options other than a refresh? I don't seem to be having the same issues with Edge or Chrome. All W11 updates are current. I look forward to anyone's comments.

updated and uBlock off, when i click and drag down, I can't go below the taskbar like I can on my phone (and used to be able to on my pc. Also, no matter what deviations of directing my downloads, whether I specify target or 'always prompt' ALL downloads go to Documents or Temp files. Then I have to cut and paste correct location. Reported THIS several times to no resolution. Tired of backing up and reinstalling FF over and over! Thanks

I've recently done a clean reinstall of Windows 11 and have noticed that, only for Firefox (134.0.2, build ID 20250120135430), a few videos playback without any audio, yet the same videos play with audio when using edge as a comparison. Most (if not all) of these videos did play with audio in Firefox prior to this reinstall.

Firstly, I'm pretty sure this is not a windows sound mixer issue since many videos on the same page and tab play back with audio just fine in Firefox. The same goes for it not relating to the Firefox setting 'Speaker selection', under (burger) > settings > privacy & security > Permissions because videos of different formats (or using different players) on the same page play back audio fine. The tab is not muted. Again, some videos on the same browser tab play audio fine; some of a particular format or player only play the video, while missing the audio (and where Edge plays the same video with audio).

Another common and potentially relevant issue I've seen is that, this being a 'Windows 11 N" install, it was initially missing the settings > system > optional features > Media feature pack, but that is now something I've successfully added. I should add that windows did report problems when I initially tried to add the media feature pack but, after a very long delay, it eventually appeared to succeed when I ran a couple of DISM incantations that I think ended with - "dism /online /add-capability /capabilityname:Media.MediaFeaturePack~~~~0.0.1.0"

I have the 'Play DRM-controlled content' setting enabled.

Comparing the Firefox vs Edge video playback on this video test page - https://tools.woolyss.com/html5-audio-video-tester/ I get the following results (don't know how to get it formatted/aligned correctly, sorry) -

                           FF vid    FF audio    Edge vid    Edge audio
av1-opus-sita.webm          Works     Works       Works       Works
vp9-vorbis-spring.webm      Works     Works       Works       Works
vp8-vorbis-sintel.webm      Works     Works       Works       Works
avc-aac-nerdist-friends.mp4 Works     MISSING     Works       Works
avc-aac-big-buck-bunny.m4v  Works     MISSING     Works       Works
avc-mp3-sita.mov            Works     Works       Works       Works

And perhaps also relevant is that there's also a difference in the audio-only samples further down the table on the same page -

                   FF audio   Edge audio
audio-sample.mp3    Works      Works
audio-sample.weba   Works      Works
audio-sample.ogg    Works      Works
audio-sample.opus   Works      Works
audio-sample.flac   Works      Works
audio-sample.wav    Works      Works
audio-sample.m4a    FAILS      Works
ac192.mp3           Works      Works
spoonradio-hd.aac   FAILS      Works
audio.opus          Works      Works

Also, every 'v.redd.it' / reddit-video-player video plays the video fine but has no sound when using Firefox but plays both sound and video fine with Edge. Here's one for example - https://old.reddit.com/r/funny/comments/1i7y1nr/rock_paper_scissors/

I've seen lots of similar (but not identical) issues on Firefox video with no audio problems with suggestions a few things to try. In addition to what I've already mentioned above, I've tried the following without success -

- Restarting Windows - Restarting Firefox - Restarting Firefox with addons/extensions disabled - 'about:support' > Refresh Firefox - 'about:support' > Clear startup cache - (hamburger) > more tools > task manager > (click the little profile icon for the page playing the video) - I've checked the settings suggested here: https://support.mozilla.org/en-US/kb/fix-common-audio-and-video-issues#w_check-some-firefox-settings

I realise it may be possible to side-step this problem by flailing around with more drastic work-arounds like trying a clean re-install of Windows or a full uninstall and clean of Firefox, but that doesn't really help figure out the problem, which leaves the possibility it could easily happen again to me or others when it might be something that can be more properly fixed or guarded against in Firefox itself, so I hope someone can suggest what might be done to home in on identifying the cause of the problem and so learn whether a more precise fix can be employed.

Hi. Just recently firefox, which has been faultless for a long time, is now occasionally giving me "hmm, cannot find this site" messages for Google and BBC. Duckduckgo and chrome are operating normally.

What is the cause of this aberation?

Hi there! Ever since I believe two days ago, playing videos in the Firefox browser have been giving me issues. Videos often end up looking scrambled/glitchy. It starts off mostly in green but sometimes turns multicolored, and the tab the video is in starts lagging or freezing. At first I thought it was a YouTube issue, but it's happening on other websites as well, even for animated gifs. I tested some videos in Edge, and so far I haven't had any glitchiness there yet.

I currently have Windows 11, and Firefox is up-to-date. I've attached screenshots from three different websites. Happy to provide other info if needed!

Firefox 134.0.2

Hi!

I was shocked when I recently visited a website of a company that offers IDEs. I've downloaded one of the IDEs a couple of weeks ago and now that I've came back to the website looking for plugins, the website still "knew" which version of the IDE I had downloaded because it gave me warnings about plugins not compatible with my IDE version. Now: My privacy settings in Firefox are "strict", the option "Delete cookies and site data when Firefox is closed" is checked and I've closed Firefox several times in the meantime. Still, the website has information about my identity.

I would have expected that with these settings something like what I've described wouldn't happen. I must say, I'm quite disappointed. Is there anything else that I can do within Firefox to enhance my privacy?

Plugins that I've installed: CanvasBlocker Cookie Autodelete Decentraleyes Forget Me Not NoScript

Hello,

In some tabs, my address bar flickers. I have not observed any clear pattern as to why this happens, though I can say for certain that re-doing the browsing steps in a new tab will sometimes solve the issue.

Incredibly odd!

Note that I am on a portable version of Firefox provided by PortableApps Platform.

Regards, Simon

Having an issue playing purchased movies from YouTube that have played before for a year on a new HP Envy Laptop. Google/YouTube support had me try to play the movies in Chrome (I use Firefox always) and they played. Google wouldn't provide any further assistance. This is laptop has Firefox as the Default Browser. I believe same settings as my previous laptop, also HP.

Firefox is up to date as well. Any ideas?

I have changed my primary password but when I try and sync I am told to reconnect my account by signing in. My password is then rejected multiple times, but the same password works on my Iphone. Any thoughts please?

Ok I have been having an issue where someone is trying to access my computer via remote acess and it happen only when im about to click on play on youtube.

More info here https://forum.eset.com/topic/44026-eset-is-bypassed-by-remote-access-incoming-connection/page/2/#comment-195287

evidence provide this should concern both mozilla and eset.

Hello to you up there ! I have Windows 11 - 23H2 up to date ! since 21/1/2025 each time I start Firefox (up to date 134.02 - 64 bits) I get a warning from Malwarebytes Browser Guard that blocks a outgoing request coming from Firefox via port 443 to the IP 82.221.136.1 ( = welcometothemachine.co …. what is that ?? analytics ? AI  ??) .... I am asking myself why is Firefox trying to go to that IP because I never did ask for something like that and how to delete the whole request every time now .... (CCleaner does nothing when used) ... bizarre bizarre behaviour yes ! Who can answer me. Can you please also answer me on geomar@scarlet.be because I would not like to miss the answer ? Thanks.

I have a number in a circle showing up on the Firefox icon on my taskbar. For a while it was a number 1, then that went away. Now I have a number 5 in a circle on the icon.

I deleted my browser and reinstalled to try and help with some lag issues. Now every time I turn the computer on, this message displays-before I have clicked a link to open FF. What is this trying to tell me exactly?

I'm experiencing an issue where the fonts in the Firefox application interface are broken or appear distorted. However, the fonts on websites are displayed correctly.

I have already tried resetting browser settings, reinstalling Firefox, and clearing cache, but the issue persists. It seems to be related specifically to the application’s UI fonts and not website rendering.

Steps taken so far: - Manually cleared profile and cache (in ~/Library folders) - Reinstalled latest firefox.

Macbook m2pro, macos Sonoma 14.7.2

I just updated Firefox only because I got an email saying my version would no longer be supported. EVERY TIME I update something goes wrong. This time the SEARCH field on my address bar disappeared--I can't do searches. HOW DO I FIX THIS? ALways next to the address was a place for inputting searches--WHY would you disappear this? Also WHY is the pointer so large I can't read text underneath when I roll over icons?

anyaparadiso@pm.me