Firefox windows not visible, minimisable, or maximisiable on desktop

I had two Firefox windows on my computer, one with a few tabs of Youtube and Twitch pages, and a private window with a single Twitch stream. I've had them and the program… (மேலும் படிக்க)

I had two Firefox windows on my computer, one with a few tabs of Youtube and Twitch pages, and a private window with a single Twitch stream. I've had them and the program open for days, with my conputer turned on and off multiple times with no issues.

Today I booted a game I installed yesterday on my computer and played for a few hours, after closing the game, both my Firefox windows became completely inaccessible.

I've tried closing firefox, restarting my computer, letting Firefox create a new xulstore file and nothing has worked. I can't see the window, I can't make it active. It's permanently minimised.

It spikes Desktops Windows Manager to 100% GPU usage, it makes my PC lag and run slow, and I can't do anything in the browser cause the window won't stay open or up. I can't even open the old window and then a new one, it stays minimised and I can only see the preview by hovering my mouse over it.

I've tried GPU driver updates, I tried anti virus scanning, and I've tried opening another browser which did work. But Firefox is the one with all my saved settings and preferred browser. I also can't see the Firefox window at all when using the window key + TAB to check my desktop, but it does show up on Task Manager as running.

Please help me restore my program. I'm making this on my phones firefox browser which is running fine

Asked by Kiramin 3 மாதங்களுக்கு முன்பு

Last reply by jscher2000 - Support Volunteer 2 மாதங்களுக்கு முன்பு

Random Error like 383.25 is not a valid value for Int32.

We are getting this Random Error while Scrolling. Before Version 141 it was working fine. Even after getting connected and getting response that update to 141.0.2 but sam… (மேலும் படிக்க)

We are getting this Random Error while Scrolling. Before Version 141 it was working fine. Even after getting connected and getting response that update to 141.0.2 but same issue still exist.

Asked by Jagvinder Singh Grover 5 மாதங்களுக்கு முன்பு

Last reply by TyDraniu 5 மாதங்களுக்கு முன்பு

Making Firefox an "AI browser" is a terrible decision

Having heard the news that Firefox's latest CEO wants to turn it into yet another AI-slop browser, I came to this forum to give feedback as an avid Firefox user over the … (மேலும் படிக்க)

Having heard the news that Firefox's latest CEO wants to turn it into yet another AI-slop browser, I came to this forum to give feedback as an avid Firefox user over the last 4-5 years. I can see I'm not alone either; there are tons of other users who seem to feel the same way I do.

This is a very, VERY bad decision. So far, every "AI update" that has already hit Firefox has done nothing but make the browser worse and more inefficient. A few months ago, Mozilla was getting hit by complaints from desktop users about memory usage skyrocketing due to the implementation of an AI chatbot into Firefox. Now they've added AI search engines among other things. And surprise, surprise--no one seems to actually want to use these features. Why should we, if all it does is make computers run slower, overheat, and doesn't actually answer any useful questions or contribute anything meaningful?

I'm baffled at Mr. Enzor-DeMeo saying he wants to go all-in on making Firefox an "AI browser" with his whole chest in the SAME week that Microsoft has had to lower their growth targets for AI-related sales, some of them up to 50%, because NO ONE seems to actually be buying AI products. You know, on account of (you guessed it) not finding them very useful.

Other people have already mentioned the myriad of other problems with AI too, so I won't touch on those too much, other than to agree that AI is a plagiarism machine that's doing serious environmental damage. What I WILL say is that I personally have been using Firefox all this time specifically because it's avoided the AI craze as much as other browsers, or at the very least, avoided making it "opt-out" instead of "opt-in" to the same degree. But if this changes in the near future and Firefox does become yet another inefficient AI slopfest of a browser, I may seriously rethink my loyalty to Firefox and switch back to Chrome instead. After all, there would be functionally no difference between the two browsers anyway!

Please rethink this decision and consider actually listening to user feedback going forward. If Mozilla actually wants to retain their userbase, I'm sure I'm not the only person thinking about dropping Firefox for Chrome in the future.

Asked by oyashirosamanotsukai 1 மாதத்திற்கு முன்பு

Last reply by Paul 1 மாதத்திற்கு முன்பு

UI Buttons do not work, Bookmarks have all dissapeared, right click is not working.

A couple days ago, some weird issues have started: All my bookmarks are gone Any of the buttons in the UI that open a smaller UI do not work (such as the 3 bar menu… (மேலும் படிக்க)

A couple days ago, some weird issues have started:

  • All my bookmarks are gone
  • Any of the buttons in the UI that open a smaller UI do not work (such as the 3 bar menu)
  • Similarly, right clicking to open a menu (such as "Save Image") also does not work
  • Any dropdown menus in websites seem to also not work. For example, in this very support page, I could not select an option in the "Which topic best describes your question?".

I can't restart and troubleshoot Firefox since I can't access the 3 bar menu.

Asked by Nesi 3 மாதங்களுக்கு முன்பு

Last reply by Nora 2 மாதங்களுக்கு முன்பு

Firefox in Macos - Tahoe 26.0

Firefox not responding on macbook M4 Macos Tahoe 26.0 I tried restarting Firefox I tried restarting my macbook But everything repeats. Use Firefox for a while and it free… (மேலும் படிக்க)

Firefox not responding on macbook M4 Macos Tahoe 26.0 I tried restarting Firefox I tried restarting my macbook But everything repeats. Use Firefox for a while and it freezes again. Tôi sử dụng Firefox mới nhất: 143.0.1

Asked by YukIXboy 3 மாதங்களுக்கு முன்பு

Last reply by wcn00 3 மாதங்களுக்கு முன்பு

Firefox Performance Issues When Using a Time Calculator Tool

Hi, I’ve been experiencing slow startup times in Firefox, especially when I have my Time calculator web app open. The browser takes longer to load and sometimes becomes u… (மேலும் படிக்க)

Hi, I’ve been experiencing slow startup times in Firefox, especially when I have my Time calculator web app open. The browser takes longer to load and sometimes becomes unresponsive.

I’ve tried disabling extensions and changing my home page, but the issue persists. Are there any specific settings or troubleshooting steps in Firefox that can help improve performance when using online calculators like this?

Any guidance or tips would be greatly appreciated. Thanks!

Asked by Martin Sophie 4 நாட்கள் முன்பு

Last reply by Lune Berta 2 நாட்கள் முன்பு

Firefox hangs

Ever since this month's Windows 10 update I've been having problems with Firefox. I start it, the menu bar and tab comes up, but then nothing. I can't access any web site… (மேலும் படிக்க)

Ever since this month's Windows 10 update I've been having problems with Firefox. I start it, the menu bar and tab comes up, but then nothing. I can't access any web sites. I tried removing the Windows update, then tried uninstalling and reinstalling Firefox, and then messing with the settings. In each case Firefox would work for a couple of days, then I'd have to start it three or four times to get it to work, then it wouldn't work at all. I've been using it for 10 or more years now (four on this computer) and have never had any problems before. I'm loathe to switch to another browser, but if this can't be fixed I won't have any choice. This is what happens when I start the program.

Asked by michael_lemick 5 மாதங்களுக்கு முன்பு

Last reply by Kiki 5 மாதங்களுக்கு முன்பு

Firefox Freezing After Latest Update

Hello Firefox Support, Since the latest update of the Firefox browser, I have been experiencing frequent freezes. The browser becomes unresponsive when performing basic … (மேலும் படிக்க)

Hello Firefox Support,

Since the latest update of the Firefox browser, I have been experiencing frequent freezes. The browser becomes unresponsive when performing basic actions such as:

  • Clicking on the menu
  • Closing tabs
  • Copying or editing the URL

When this happens, the only way to recover is to close Firefox and reopen it.

Could you please advise on how to resolve this issue?

Thank you for your support.

Best regards, Mohamed Adel

Asked by Mohamed Adel 5 மாதங்களுக்கு முன்பு

Last reply by Kiki 5 மாதங்களுக்கு முன்பு

firefox freezes at https://www.mlb.com/gameday/braves-vs-nationals/2025/09/17/776286/live

https://www.mlb.com/gameday/braves-vs-nationals/2025/09/17/776286/live this site at mlb.com or any site showing a live game eventually freezes up and cannot be closed no… (மேலும் படிக்க)

https://www.mlb.com/gameday/braves-vs-nationals/2025/09/17/776286/live

this site at mlb.com or any site showing a live game eventually freezes up and cannot be closed normally. task manager or re-boot is only way out, starting over with a new instance of firefox after ending all firefoxes.

this has been happening just this past few days, after firefox updated to 143.0 on windows 11 using defender, no other screwed up security software.

firefox needs to fix this, it is not likely anything with the site but rather with firefox latest update, as this has always worked before on this same computer.

Dennis Coleman

Asked by Dennis 4 மாதங்களுக்கு முன்பு

Last reply by Denys 4 மாதங்களுக்கு முன்பு

Processes

Hi, I have 30 Firefox processes running and they are taking up ~2700 MB (84%) memory. I have 8GB installed memory. I'm running Win 11. What causes processes to run an… (மேலும் படிக்க)

Hi, I have 30 Firefox processes running and they are taking up ~2700 MB (84%) memory. I have 8GB installed memory. I'm running Win 11. What causes processes to run and how do I know which ones I can end?

Any help is appreciated.

Thanks, John

Asked by John Sowder 1 மாதத்திற்கு முன்பு

Last reply by jonzn4SUSE 1 மாதத்திற்கு முன்பு

High RAM and CPU Usage in Firefox with Few Tabs Open

Firefox has been using more RAM and CPU on my system recently, especially with only a few tabs open. Is this expected behavior, or are there specific settings, extensions… (மேலும் படிக்க)

Firefox has been using more RAM and CPU on my system recently, especially with only a few tabs open. Is this expected behavior, or are there specific settings, extensions, or configurations I should check to improve performance?

Asked by Franklee 2 வாரங்களுக்கு முன்பு

Last reply by jonzn4SUSE 2 வாரங்களுக்கு முன்பு

to many tabs

when i open firefox and have one tab open, doesnt matter what site it will freeze and i go to task manager and it says i have 15 open and ill end task and open again and … (மேலும் படிக்க)

when i open firefox and have one tab open, doesnt matter what site it will freeze and i go to task manager and it says i have 15 open and ill end task and open again and it will say more or less

Asked by Buffy Ingle 4 மாதங்களுக்கு முன்பு

Last reply by jonzn4SUSE 4 மாதங்களுக்கு முன்பு

Firefox is a memory hole.

I am using a new Windows 11 computer. I use Firefox for almost everything. But it opens many processes and it very quickly gets to the point where anything I do causes … (மேலும் படிக்க)

I am using a new Windows 11 computer. I use Firefox for almost everything. But it opens many processes and it very quickly gets to the point where anything I do causes a hang. If I am listening to music or a podcast it pauses and buzzes. This AM I turned on the computer and opened Firefox, without reopening an old session. I had open two windows with two tabs in each window. Using Windows Task Manager I determined that Firefox has twenty-one processes open. Some of them have the efficiency leaf and some do not. I do not use an Add-On manager, but use MalWareBytes for a VPN and protection. Please help.

Asked by bjgrey 5 மாதங்களுக்கு முன்பு

Last reply by jonzn4SUSE 5 மாதங்களுக்கு முன்பு

Address Bar Freezing in mint-001 - 1.0 146.0.1 (64-bit)

Anyone else having an issue with the newest firefox in Linux Mint? I don't know what's causing it but when multiple tabs open my address bar and all other primary buttons… (மேலும் படிக்க)

Anyone else having an issue with the newest firefox in Linux Mint? I don't know what's causing it but when multiple tabs open my address bar and all other primary buttons/icons (including the menu button) don't work, only the download button. Across multiple tabs. Not using any groupings/classifications or any "new" tab features or vertical windows etc.

Asked by chris726 2 வாரங்களுக்கு முன்பு

Last reply by jonzn4SUSE 2 வாரங்களுக்கு முன்பு