Форум сообщества Firefox

Today randomly i noticed that my bookmark bar is waaay shorter out of the blue, i didn't change or adjust anything, all i do is the updates from mozilla that's all, it was all music it really saddens me because atm it's lost forever, i hope somebody can help me (i don't know since when it disappered i literally just noticed it right now ...)

YouTube videos encoded at 60 frames per second are extremely choppy in Firefox only. Microsoft Edge plays the same videos perfectly.

I have deleted my profile and reinstalled Firefox, updated graphics driver to the latest version, and toggled hardware acceleration on and off. Nothing helps.

Hello.

I use Firefox on an computer with Ubuntu, (installed as snap) and have noticed that since the update to version 140 (specifically, version 140.0 canonical-002-1.0), closing a tab causes a noticeable delay : that is, upon any action that would close a tab (clicking on the cross, pressing CTRL+w, or middle clicking), there is a delay of about 200 to 300 ms before the tab is actually closed.

However, during this delay, the window still responds to inputs, leading to rather annoying situations. For example, during regular usage, I usually open a great number of tabs. When I am done with browsing, I close them, by repeatedly clicking the cross button on the tabs. It used to be that the tab under the cursor would immediately close, then the next tab would slide under the cursor, and I would click again to close that one, etc.

But now, when clicking the cross button, the tab is not closed, and when I click again after a small delay (because of muscle memory), the tab is still there. This cause the two single clicks to be treated as a single double-click, which for some reason puts the window in full-screen mode (but only with the snap version; I'm not sure what's going on here).

When using CTRL+w when closing tabs, the delay is still there, but the inputs are correctly handled. If I press CTRL+w three times at the usual rate, I can see the three key presses, then nothing happens for a few instants, then the three tabs close at the same time (i.e. the delay is from input to tab close, not from tab close to other tab close).

This behaviour is completely absent on Firefox (also version 140) on my windows computer.

This delay does not appear when creating tabs, and it does not occur either when closing the window or when closing the last tab in the window (leading to an amusing situation where shutting down Firefox is actually faster then closing a tab). These operation keep going at their previous speed, immeasurably fast to the human eye.

Navigation does not appear to be meaningfully slower than before the update, and the CPU/memory usage is very reasonable.

Curiously, this appears to be a fixed delay. Closing an empty tab takes the same time as closing a very busy one. Closing a tab when there are five takes the same time as closing a tab when there are thirty.

This issue makes browsing feel incredibly sluggish.

Is there a solution for this problem ?

Edit 1 : I have tried to run Firefox in troubleshoot mode, but there was no difference in behaviour. Edit 2 : Fixed typo. Edit 3 : Added exact version. I also tried to refresh Firefox, but the issue remained. Edit 4 : The problem is still present in version 140.0.1 canonical-002-1.0. Edit 5 : The problem is still present in version 140.0.2 canonical-002-1.0.

Firefox has just introduced wallpapers for browser home page. I cannot get it to work. It's either cropped too small or pixilated, is there a setting I need to adjust, or a particular image format? So that it looks ok.

When assigning a URL to the mediaplayer object it started appending the current path to the URL. Did not do that in prior version. You can see it automatically puts the current browsing URL and then the URL that is assigned. So the file will not load. GET https://www.swingtechnologies.com/https://www.swingtechnologies.com/UploadVideos/clarkj@pobox.com/S200629_019 A.mp4 [HTTP/2 404 8ms]

After recent update, I can not browse any addons. The site https://addons.mozilla.org does not open, shows the connection timed out. I uninstalled and reinstalled firefox deleteting all firefox related files. The problem still persists. Other than this all the using browsing I do are all working fine. Just this extensions I cannot browse. When I click the extension icon by default it shows some extensions, I can Install them. The problem is I can not browse them. Even the recomendation tab is also empty.

PS: I am using firefox on manjaro linux.

Description: while viewing videos on youtube, twitch, odysee (and possibly other sites with videos), the video player may suddenly stop playing, and after that, no video in firefox can be played. Restarting the browser makes this issue disappear for a while, but i'd like a permanent solution.

What i've tried so far: Disabling uBlock Clearing cache and cookies Enabling/Disabling hardware acceleration Disabling proxy extension Disabling antivirus on PC.

Hi community,

Since the last Firefox update, I’ve noticed that many websites load as a blank white page on the first attempt. The only way to get the content to appear is by refreshing the page manually (Ctrl+R).

This happens randomly on both static and dynamic websites — sometimes even on Firefox’s own support pages. I’ve already tried:

Clearing cache and cookies

Disabling all extensions

Running Firefox in Troubleshoot Mode

But the issue still occurs. No errors in the console either.

Is this a known issue with a recent update? Or could it be related to hardware acceleration, DNS, or caching settings?

Would appreciate any advice or similar experiences!

Hi everyone,

We’re testing scroll-linked animations on a landing page built with Tailwind and custom JS for our client project hosted at https://noveltyads.com. Specifically, we’re exploring the ViewTimeline API and CSS animation-timeline for a horizontal scroll section.

While everything works smoothly in Chromium-based browsers, we’ve noticed Firefox behaves inconsistently in the following ways:

The animation-timeline: view() property doesn’t always trigger on scroll as expected.

Debugging with Firefox DevTools, the animations don’t appear in the Animation panel at all.

We confirmed that no polyfills or fallbacks are interfering.

This is happening on a custom-built section on this live test page: https://noveltyads.com (it’s a mock client version for internal QA — nothing behind a paywall or login).

Has anyone experienced similar behavior with Firefox’s scroll-driven animations or ViewTimeline implementation?

We’d love to know:

Whether Firefox fully supports ViewTimeline (or still considers it experimental)

Any DevTools flags or settings needed to see scroll animations properly

If there's a better way to ensure cross-browser consistency using native APIs

Thanks a lot for your help and insights!

— Usama

I own a website that has chat rooms for each of my advisors. As of 2 days ago they are all having issues. I have them login with Firefox but now asking them to use Google Chrome...............low and behold it works

Whats the issue as i believe it started with the latest Firefox update

Thanks so much

Natalie Damsel In Distress :)

I'm using Firefox in a kiosk-mode application, on a Raspberry Pi based system, started from a bash script like this:

# Clear history etc. to prevent problems if unit is not perfectly shut down rm -v -r /home/pi/.mozilla/firefox/*.default rm -v -r /home/pi/.mozilla/firefox/*.default-esr rm -v -r /home/pi/.cache/mozilla/firefox/*.default rm -v /home/pi/.mozilla/firefox/profiles.ini

sleep 2

/usr/bin/firefox-esr --kiosk -url http://127.0.0.1

However on booting I get a banner from Mozilla along the top of the screen saying: "Firefox automatically sends some data to Mozilla so that we can improve your experience [Choose what I share]"

This is not acceptable in kiosk mode, as it would give users access to the configuration as well as being a visual annoyance. How can we disable this?

Why when I view a site in a private window are the cookies saved in the cookies and site data list on the privacy and security page of my main firefox pages. I though when you used private windows no cookies or history was saved once you closed the page.

I updated to the newest version of firefox the day it released and everything was fine until today 7-4-25. I logged onto my pc and it would not open. Task manager doesnt even recognize it as a program. So i restarted, still did not open, i refreshed with the installer still did not open. Set as run as administrator it opens but i get a white screen with all my tabs crashed out my settings are gone in firefox and i cant open anything in the options at all below is how my firefox looks no matter what i do. I have gone into command prompt and everything did a flush i went to check to see if the launcher was enabled it is enabled in the actual config but it comes up as disabled in the support page (and thats when I can get those to open they dont open all the time) I uninstalled and reinstalled three times. and yes i did a fresh install.

how my firefox screen now looks nothing works.....

https://gyazo.com/bda04c98f0db46013225bc6158f80469

Firefox 139.0.4. version is also not good! Uploading videos to Youtube does not work with it! It does not move from zero percent! As I wrote earlier, the problem started with version 138.0.4. and is still ongoing! Uploading videos works with other browsers! I am waiting for the problem to be solved! If I wrote my letter in the wrong place, please forward it to the authorities! At the moment I could write a letter here, I can't really find a topic where this would be discussed! My OS Win10 64 bit. Thank you!

Since the last Firefox update I cannot access sites such as Chaturbate or Myfreecams anymore with error message :

"Hmm. We’re having trouble finding that site. We can’t connect to the server at chaturbate.com."

There seems to be a DNS issue. I tried everything I found online such as desactivate DNS over HTTPS and others but I just cannot access these. Firefox works for "normal" sites and all other browsers (Edge, Oasis, Brave, etc) work fine now but I had to change the DNS after their last update (everyone created a problem from last week, so strange).

Another very strange thing is when I use a VPN, even with my country to access from, it is working !!!

What can be the issue and how to solve it ? Thanks

Hello Firefox Support,

I’m encountering a strange issue with Firefox. While playing YouTube videos at very low quality (144p) just to listen to music, my GPU usage spikes to 100%. This happens even when the video is not fullscreen and there’s minimal visual content.

System Info:

   Firefox Version: 140.0.2 (64-bit)

   Operating System: Windows 11 

   CPU: AMD Ryzen 7 8700F (no integrated GPU)

   GPU: AMD Radeon RX 7900 GRE

   GPU Driver Version: AMD Adrenalin 25.6.1 

The issue goes away when I disable hardware acceleration in Firefox settings, but I’d prefer to leave it enabled for better performance elsewhere.

Is this a known issue with AMD GPUs or is there something else I can try to reduce GPU usage during playback?

Thank you for your help.

First of all, if you really want to help people, then offer phone or at least chat support -- not bots!

Second, I just uninstalled Firefox for the second time because of problems with connectivity and installing bookmarks

The first time was a problem with the bookmarks and again I had a problem, not with installing them but installing too many -- each imported bookmark installed seven times!

Also, I was having problems loading pages.

You really think people want to spend days rummaging through FAQs to find an answer? You need to provide some good support if you want to survive.

The setting works...in the way that if i quit Firefox, it'll not continue from the tabs and windows, but if i reboot my pc and open Firefox, I find myself the same place i stopped...even though i have that setting disabled. I found someone else with same issue on reddit and i did the same restarting the browser and refreshing and all....all to no effect.