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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?

It seems that since the Version 141.0 update, initial startup of FF seems to take ve-e-e-ery long (approx 3-4 minutes).

The startup time/lag seems almost the same as it takes to restart after an update.

Anyone else experience this also? Thanks.

I have been using Firefox for many, many years. As of late I find it is constantly slowing or freezing and when I check with taskmanager I find Firefox has opened and is running as many as 85 processes. I have tried the recommended methods of limiting it...but the performance options do not provide the ability to limit processes as set out in the instructions....and changing the browser.tabs.remote.autostart to false also did not work. If I can't fix this, I will have to stop using Firefox. I am using version 144.0

I have been using Firefox for many, many years. As of late I find it is constantly slowing or freezing and when I check with taskmanager I find Firefox has opened and is running as many as 85 processes. I have tried the recommended methods of limiting it...but the performance options do not provide the ability to limit processes as set out in the instructions....and changing the browser.tabs.remote.autostart to false also did not work. If I can't fix this, I will have to stop using Firefox. I am using version 144.0

Windows 10 B650M PG RIptide WiFi (BIOS 3.5) Ryzen 5 7600 RTX 2060 Super (driver 596.36, output to LG C1 over HDMI at 4K 120Hz with certified cable) 16GB DDR5

This issue has been happening for about 1-2 months.

When Firefox is open on my computer, my cursor will randomly lower its frame rate to a very low number, probably below 15 FPS. It doesn't matter what I'm doing, just having Firefox open, even in the background, causes this to happen. No such issues in other chrome-based browsers with or without hardware acceleration enabled. I have disabled all extensions and still encounter the problem.

Disabling hardware acceleration does fix this issue, but then the web, and even high resolution videos, become laggy or choppy as a result. Which is very uncharacteristic for my system, because I remember it being quite snappy in software mode on the my same CPU in the past. So something seems to have gone wrong in recent months that makes acceleration in general poor, with or without hardware acceleration on.

My hardware is low end from 2016, Pentium 3825U, HD Graphics, and 4gigs of RAM. In the old times, the browser was fast, but this year it has slowed down so bad. I needed to switch to Thorium browser because Firefox became so heavy, using too much RAM and CPU. Please make the browser light, fast, and good for old systems again! (I want to use Firefox back)

Hi, I'm on Firefox 147.0.3 and windows 11 business 25H2 (26200.7623), with two displays. For the past few weeks: - firefox stays on top - alt-tab to other window on that screen doesn't work, other app is not displayed over firefox - clicking on other app icon in task bar doesn't bring it to foreground/top - even other firefox window (like new private window) is opened in background - the only way around is to minimize firefox - without firefox opened, everything works normally It is really disturbing my flow / ways of interacting with apps / habit of using keyboard to move between apps.

Is it a bug, or is it a matter of some settings? I've seen similar quesiton from 9 years ago https://support.mozilla.org/en-US/questions/1140245 but there is no setting of the same name now?

Just a note that I had a lot of probem with the firefox not opening when a link is being clicked. It would open in background but not come to focus.

External hyperlinks do not open in Firefox window.

I found that focusmanager.testmode was the cuplrit, after a lot of hard work.

Is there a way to have Firefox start with all, or all but the first tab unloaded?

My Firefox starts with about 100 tabs open and many of these now have ads running which makes Firefox very slow. It seems to take ages and ages for all the tabs to load.

Maybe if all the tabs were unloaded when I start Firefox it would be quicker to get up and running??

I'm running Windows 11 on a desktop with an i5 CPU and 32 GB of RAM.

Any help much appreciated.

I booted the computer this AM and firefox is acting up. I can go to my email accounts (2), but I can't open an email. Both act like this. They will open with MS Edge and all other functions seem to work on the computer except for firefox.

I tried searching for a solution using duckduckgo and google, many of the links wouldn't open and some that did, just loaded re-loaded, but never finished. Pulldown menus, where they ask a question and click to see the anwer, don't work. They are frozen. Can see the cursor highlight the menus, however it will not allow any interaction with them.

I restarted the computer, there was an update, and I had it update. No change with firefox. I reinstalled firefox. No change. For the moment, I'm out of ideas. Anyone have any thoguhts about this, please help. Thanks in advance. Ken

i was just opening a page and it kept saying Firefox running but not responding and then i gt the photo i am showing you what is it and why see photo being downloaed by another insrtance ??

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

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

Whenever I start my machine, without opening Firefox, Ctrl-Shift-I works (For inverting selections in certain programs, for example).

However, once I open Firefox, these 3 keys no longer work when used together (but work in any other combo).

This persists even when I close Firefox, or kill it in Task manager.

Any ideas?

Cheers

latest update seems to have broken firefox 155.0.1. It opens but then becomes unresponsive. Two different PC, both win 10. How can I revert to previous?

I can not get extra info from troubleshooting page cause FF won't open so as to be used.

I've just now noticed that whenever I open the website hxxps://www.hex-rays.com it will hang without finishing loading for a couple of seconds, then the entire browser will freeze. I've already tried on a new profile, verified that no addons or plugins are installed there, and no DLLs hooked into the process. This happens on my physical PC and in an (almost unused) VM, with an ancient version 134.0 and the latest 149.0.

Can anyone else replicate this? Should I create a bug report?