Firefox Community Forum

i have said many times that i keep getting Firefox running but not responding . i have contacted many places and complained had some of your r tech try and help now with the new update i am still getting it yet i was told it would be fixed. i have reinstalled i have removed and shut off some add ons cleared cache all but cookies and still i get it funny until the last 2 new versions i never had this problem it is a Firefox problem not mine. i would have thought you would have fixed it by now

Why does Mozilla 154.0 always stall after a couple of minutes? It is a hell of a mess. I couldn't place this question without resorting to an older version of Firefox :-[[

Did anybody test V 154.0 anytime, at all?

I unfortunately updated a Windows 10 computer to this version of Firefox.

As such, I cannot provide you with troubleshooting information, because the new browser 154.0 does not work. At. All.

I did all the usual stuff like restarting the computer, the users of Windows OS junk are used to anyway. The Task Manager shows not less than 16 Firefox-processes, with a truckload of memory usage, having opened just one browser tab. Waiting for 20 minutes for firefox to show me the grace of continuing its operation didn't help either.

Any ideas?

Firefox under Linux Mint 22.3 Cinnamon, will not let me input text. How can I get past this?

I am having to type into a text file, copy and paste to get information into a text box in Firefox.

I've been testing a browser-based metronome in Firefox and noticed that the audio click can sometimes feel slightly out of sync with the visual beat. It isn't a complete audio failure—the metronome keeps running and produces sound—but the timing can feel a little delayed or inconsistent, especially when using it at faster BPMs. The site I'm testing with is TheTapTempo's online metronome. I'm trying to figure out whether this is related to Firefox's handling of web audio or whether the delay is more likely to come from the system/audio device. A few things I'm wondering about: • Could Firefox's Web Audio timing cause a small difference between the scheduled beat and when the sound is actually heard? • Could Bluetooth headphones make the problem more noticeable because of their audio latency? • Can Firefox extensions or hardware acceleration affect the timing of browser-based audio? • Is there a Firefox setting or diagnostic mode that would be useful for testing this? • Would comparing the same metronome in Firefox and another browser help determine whether the issue is Firefox-specific? I've also noticed that the perceived timing can depend on the audio output being used, so I'm not sure whether this should be treated as a Firefox issue or an audio-device latency issue. What's the best way to troubleshoot this in Firefox?

i have been tired many things to do and have tried all of them instead of uninstalling and reinstalling Firefox. Which i should not have to do as none of what is happening is my fault. I have done all i was asked by many of you and have done it all . I am getting no answer and no real solution by Firefox to tell me why i continue to get that you all think i am a dumbie none of this is my problem yes i have desktop icons which i have always had and yes they ope up with Firefox and never ever have i had this before they have always open with no problem until this last updated version. I am constantly getting Firefox is running but not o responding. Why when i go to chrome or click the chrome add on in address bar a say click on my amazon I con it opens right up with not saying google is running but not responding. why ca none of you answer the question and why can it not be accepted that it is a Firefox problem and not me. As i have said i have had these same desktop shortcuts since i got my computer on windows 7. up until this last version i never ever had Firefox say it is running but not responding. Like ic said i have done all that way said by Bugzilla Firefox help and still no real answer and no fix . I am tellin you it is not me it is a Firefox problem. why can this not be researched and find out why. I am sure i am nt the only one with this problem. Please i need a solution or ill stop using Firefox which i have for over 20 years but apparently Firefox does not care and thanks SOLUTION PLEASE

This has been in the last month or so. It will freeze up and I can't break out of it. Last time it froze the whole computer and I had to power down and restart. There must be something that changed. And there must be some way for me to be able to quit when this happens. Last time it was on a video call with my 104 year old mother and it is very annoying. The whole thing froze and I had to restart the computer and when I got it back up, she was off. I need some way to break out so I don't have to do a complete restart. t.

Hi Mozilla Support Team,

I am experiencing severe browser lag and high CPU usage on Firefox specifically when managing complex backend forms and inventory management scripts on our e-commerce operations portal.

The page script execution freezes when opening multiple tabs alongside developer console tools. I have already cleared cache and disabled third-party extensions, but memory leaks still happen during heavy DOM rendering.

Is there a specific setting in about:config or hardware acceleration flag recommended for heavy web app environments?

Thanks!

So I know these websites are kind of crap anyway, but I have issues with scrolling bsky.social (and other clients for it like witchsky) and twitter. The further into the timeline I get, the more frequently these webpages lag.

They begin freezing every few seconds for a few seconds, during which they queue left or right clicks, page up/page down, and various other commands, only processing them once it unfreezes. Firefox itself still works during this freeze, e.g. opening the main menu. Also, I can still scroll up or down to a limited degree, though this just exposes empty, unrendered webpage until it unfreezes.

bsky.social has had this problem for a long time, but twitter only recently developed this issue after I had to do a cache clear, cookie clear, etc. trying to log in a few weeks ago. Prior to that it didn't have this issue.

Task manager hasn't really helped elucidate what's wrong, so it might be an about:config that I set or even an unruly extension, but I really don't know what to try.

Updated Firefox to 154. When I select Firefox, I get a notice that Firefox is already running. If I cancel, Firefox comes up but I quickly get a notice that Firefox is not responding. I tried refresh but that didn't fix it. If you don't have an answer, I'll de-install and then (maybe) reinstall. -JJM

So normally firefox uses a reasonable amount of ram but sometimes the amount of ram usage almost doubles, then if I try to change tabs the program freezes. I then have to wait for firefox to stop using the excess of ram and return back to normal levels.

I believe this mainly happens when I have youtube or reddit open but I have no idea how to fix this.

I have already tried reinstalling firefox and deleting/changing extensions. The current extension i have on is adguard adblocker and no others.

I keep having problems with Firefox hanging or disconnecting. I have followed all the steps in the [Hanging] page, and I still have to shut it down and restart it often, sometimes as much as several times a day. I also frequently have to force quit the browser, or I get a message saying "Firefox is open, but not responding" when I try to restart it.

I keep having problems with Firefox hanging or disconnecting. I have followed all the steps in the [Hanging] page, and I still have to shut it down and restart it often, sometimes as much as several times a day. I also frequently have to force quit the browser, or I get a message saying "Firefox is open, but not responding" when I try to restart it.

In support.mozilla.org/questions/1598971 it's still not clear how you're getting this. You seem to be posting this question from a perfectly running Firefox so it apparently starts up and works fine on its own.

It sounds it's related to your Windows desktop shortcuts, or their exact target perhaps — however without knowing their content (destination or commands run) there's not much more to do here.

If you have anything new to add to the questions in the thread above, please post in that original thread so anyone trying to help understands what this pertains to. WELL LIKE I SAID I HAVE HAD THE SAME DESKTOP ITEMS FOREVER EVEN BACK ON WINDOWS 7 AND THIS HAS ONLY HAPPENED ONCE WHEN I FIRST STARTED WITH FIREFOX AND WAS TOLD THEN HOW R TO STOP IT AND BY THE WAY IT IIS NOT A NORMAL STARTING FIREFOX I GET IT WHEN I CLICK ON TH S THDESKTOP ITEM THERE ASWELL HOW COME ALL THIESES YRS HAVE HAD THE SAME DESKTOP ICOND S AND THIS ONLY STARTED ON THE 154.0 AND STILL ON THA 154.1 AND NOT BEFORE AND ITS ME NO I THINK IT IS A FIREFOX ISSUE . i HAVE Y USE THGE SAME DESKTOP AND FIREFOX SESKT OP FOR YRS AND NOTHING AND NOW IT HAPPENS WHY IS IT ME AND NOT FIREFOX//

My summary says it all, really. There's not much more that I can add, except that I have used Firefox for many years and have never had this problem before. The index page itself is fine when I view it in Firefox. And if I right-click the page and view its source code, everything is there. Furthermore, I have no difficulty in editing the page in other browsers. (Since this problem arose, I have been using the Norton browser. But I have also been able to scroll down to the end of the source code in Google Chrome.)

First post. Not really a question.

I noticed last week that some pages didn't load, and Activity monitor showing Firefox app using 170-180% which I know is way too high. Forgot to check memory usage.

I rolled back from 154 to 153 by restoring it from backup, and same with the Firefox folder in ~lib/appsupp/, relaunched Firefox and cpu was back to 2-4% cpu with a couple of windows and tabs. I've turned off auto-updates.

On my system, something is wrong with v154.

Mac Mini M4 Pro 12-core 24/512, macOS 15.7.5.

I'm experiencing continuous screen blackouts or glitches. These are unaffected by the site I'm on and only occur for Firefox browser. When I switch a tab or click a button the browser blacks out and becomes unresponsive then comes back on after a few seconds. This happens repeatedly. Clearing the cache, running a repair, and uninstalling / reinstalling the app have had no affect on it.

A week ago, Firefox started freezing and acting all glitchy. Troubleshooting said to uninstall and reinstall, which I did. That's when the real trouble began. It lost all my data, pretty much signed me on as a brand-new user. Luckily, I was able to recover my data from my phone app, but it still did not work correctly. Nothing in the support pages was helpful, so I finally had ChatGPT assist. We got it restored using my recovery key and I though that everything was fixed. Then two days ago I got the 'not responding' thing happening every time I tried to reopen it, along with a generic Firefox web page opening randomly. I reopened it several times in troubleshooting mode, again, no help. So. uninstall, reinstall, uninstall, reinstall... you get the picture. I finally thought I had gotten it properly restored at 5:30 this morning with all my previous tabs showing up. But as soon as I tried to use it, the same old 'not responding' message. I always get the pop-up asking me if I want to close it or wait for it to respond, which it will eventually do, until I try to click on a tab. What the hell am I missing here? I've had Firefox for, oh, I don't know, 20 years or so. Never had problems.