Firefox Support Forum

firefox not opening since 2022-01 Cumulative Update for Windows 11 for x64-based Systems (KB5008353). I reloaded Firefox. Google Chrome and Microsoft edge work OK. Task manager shows running but stats never change 0% CPU/0.2MB Memory

Submitting using Chrome, which may have to become my default browser.

Firefox 96.0. Windows 11 Pro Version 10.0.22000 Build 22000

Since installing FF 96, the program has stopped loading pages. Will not even load home page. Starting in troubleshooting mode sometimes works, but sometimes does not.

No extensions are installed.` I have tried Refreshing. I have uninstalled and reinstalled. Neither helps. Multiple instances of FF are started with every launch, even when the launch results in a blank page.

Any advice would be helpful.

Thank you,

Steven Sacks

The Firefox on my PC abruptly stopped working for pretty much no discernable reason and I don't know what to do. I've tried restarting the PC, uninstalling and reinstalling Firefox and nothing.

I dont get an error message. It just...doesn't start. If I reinstall it, I'm able to get the browser pulled up but then nothing on it works. It won't take me to any websites, it won't open the settings, it won't do anything. Refreshing the browser doesn't work either.

Failing that, I hopped on my phone and attempted to troubleshoot using information on this very site. I discovered that the problem might be stemming from corrupted profile data. I attempted to load the profile manager from Windows using command prompts...but that command doesn't do anything either.

I attempted to find the profile data on my computer and delete it...didn't work. I tried to reinstall Firefox to have it generate new browser data and that didn't work either. I dont know what to do and I dont know I'm supposed to fix this.

Please help, thank you in advance.

After MickeySoft's Patch Tuesday today, I found that KB5010342 prevents Firefox from running. I'm running Win10 Pro with FF 97.0 64-bit and with this patch installed, FF opens with a blank screen and no DNS lookup or anything. Other browsers like Chrome or Edge load and work without issue. After manually uninstalling this patch, Firefox again works like it should.

Any ideas on how to fix this? Thanks.

The Firefox browser won't load unless I restart my laptop. It works for a few minutes then I am unable to navigate web pages. I am not getting any error messages. If I use Microsoft edge I don't have issues.

Firefox has been awesome. But, my computer just updated to windows 11 and now it doesn't work. Sometimes I try to open the browser and nothing happens (but I somehow end up with something like 7 instances of it running in the background, according to task manager), sometimes I get it to open, but it won't load my homepage or anything, and sometimes it seems to work fine but only for a little while - then it just stops responding.

I have no idea why this is happening or how to fix it. I tried the browser reset, which helped for a little bit but then the problems came back. I think having a theme installed makes it worse, but now I can't even get settings to open so I can try turning it off to see if that helps.

Any ideas? Not being able to use the internet on my computer is a pretty big deal. I'd prefer to not switch browsers, but I don't know what other option I've got at the moment.

Thanks!

So I got on my computer today, and I tried to open Firefox, but it wouldn't open, I would get a loading icon on my cursor and then nothing. So I restarted my computer, same issue. Reinstalled Firefox, same issue. I then reinstalled after having deleted the %appdata% folder for Mozilla, but that also changed nothing. So I looked in Task Manager, and it would just open instances of Firefox as a background app no matter how many times I clicked. I've also tried using other browsers with no success. (Also, I'm runnning Windows 10, 64-Bit version, and had not installed any programs recently before Firefox stopped working.) I would greatly appreciate if I could get some assistance with this because I prefer Firefox much more than Microsoft Edge which is the only browser I'm able to use right now.

After the Firefox 97 upgrade, no pages will load. No hourglass. No error message. Just blank. Internal FF pages like about:config are the same. Ctrl + B for the bookmark sidebar works intermittently on new tabs, but not on the stuck/blank/non-loading URLs.

Tried reinstalling FF, no luck. 1 old profile worked briefly w/ 97, but only until the next restart. Creating a fresh profile w/ 97 had same error.

Reverting to FF 96 and everything works fine. Assuming you have a backup of your user profile, as 96 won't load the profile once 97 had broken/upgraded it...

This is a Dell Precision 7760 w/ Win 10 Pro, about 6 months old.

1 older machine, running Win 10 Home & synced FF to same account upgraded to 97 and is working fine.

Have temporarily had to disable auto updates until some way to solve this issue is found.

Hi, We are the computer support company for a client who is having an issue with Firefox.

Firefox will either not open, or it will open to a blank page and the client is unable to browse to anywhere.

Task Manager shows a number of instances of Firefox are running. Ending these tasks does not help.

The computer is running Windows 10 Pro - 21H2 - with all Windows updates installed. It has Webroot anti-virus. Google Chrome works OK.

I have uninstalled and reinstalled, after renaming the folders in C:\Program Files and in C:\Windows\Users\Norma\AppData\Local and Roaming

Is there a current issue with Firefox that I am unaware of? I use it myself and I am not having any issues.

Manyy thanks

Michael D

Browser stopped responding. Extensions didn't work. Regular reinstall left me in the same situation.

I have tried to do a clean install 4 or 5 times. Deleted profiles, went on a hunt for files to eliminate.

will do a google search 3 or 4 times after reinstall, but won't connect to other sites then it won't connect to google either. I'll get the 6 to 8 instances in the task manager that I have to kill.

Hello All, I'm having a issues with firefox on windows 10. I have been using it for years and this is the first time i have had this issues. Firefox will not load, if it dose it just a blank screen, I can not go out to any web page. I have tryed the work around, uninstall and reinstall noting is working. Has any see this before. My last step is looking like reinstalling windows be seeing how firefox is working on other PC i have in the house i do not wish to do this. Can any one please help me.

Thanks

Last night Firefox was running fine. I closed everything and left for a couple of hours. When I came back and opened Firefox everything was blank. There was a blank open tab, no response to any input in the address bar, nothing. So, I closed the window and tried again - this time it didn't even open. However, Task Manager showed Firefox running with 6-7 entries, all of which I used "End Task" on. I rebooted the computer and nothing had changed. It wouldn't open but it showed up a few times in Task Manager. I tried a Refresh - no change. I tried reinstalling - no change. I uninstalled and tried reinstalling - no change.

Finally, in desperation, I uninstalled, used "RegEdit" and deleted every entry I could that had "Firefox" in it. Then I reinstalled fresh - Firefix Installer didn't know it had ever been on my computer. Same result.

Honestly, I'm completely out of ideas. I can't try anything in Firefox because it won't open and I've deleted all the files and reinstalled and still no joy. Obviously, there is some file it's trying to use that is corrupted or something that isn't just a part of Firefox.

Any suggestions???

My laptop took an update on 2/8/22 and my Firefox stopped working. The toolbars showed up, but nothing in the main window and most sites wouldn't open. I uninstalled and reinstalled. It would work correctly for a couple of sites, but would just stop working. Only the toolbars (bookmarks and search) were on the screen. I removed the app data for Mozilla and uninstalled and re-installed again. It again worked normally, but only for a few minutes. Just toolbars and a white main window. My laptop was running Windows 10 when this happened. I went ahead and installed Windows 11 and did another re-install. Same thing. It worked for a short time and then quit. It doesn't seem to matter if I sign in and sync or not. I hope there's a fix for this. I love my Firefox! I'm using a different computer to send this. It is a Windows 10 machine that has the same update, and Firefox is working fine on this machine.

When I open Firefox, none of the tabs will open to the website. All of my old tabs were there but don’t show anything. If I open a new tab it will open but will not show anything. I tried to refresh Firefox, and the tab not open. I tried to close fire fox and reopen it and fire fox would not reopen. I tried restarting my computer and opening Firefox and Firefox will not open. I tried to uninstall Firefox and my computer told me that Firefox was running. I shut down my computer and then uninstall Firefox. When I reinstalled Firefox it would not open.

Firefox will only open in the background of my computer no matter how many times I try to open it. I have reinstalled Firefox and deleted and reinstalled its files many times. When I try to open Firefox, my mouse shows that it loads and then it only opens in the background. I have tried safe mode and editing my profiles too.

As of 4pm est 2/8/22, firefox was working fine, it updated around 10PM and has been broken ever since. I can't even get it to open except for right after a full computer restart. when it does open it's just a gray screen, can't even go into the settings. websites don't load. refreshing does nothing. reinstalling and refreshing does nothing. I don't even get an error message. chrome works. IE works. nothing on my end has changed. I have 2 extensions. ublock origin, and web shield. I've turned both on and off with no effect. I let it go for a day to see if it's something on mozilla's end, nothing doing. it's now 4pm est 2/9/22 and the problem still exists.

I run windows 10 home version 21H1, with full up to date drivers. that hasn't changed.

this only started when it updated to the most recent update.

I've done everything I can think of. I've ended the task, restarted my pc, uninstalled, reinstalled. Nothing has helped. It's a miracle I can still launch the file, it maybe starts once every 7 tries. I have no idea what happened or what I'm doing wrong, but its been like 2 hours and I'm still beyond lost.

As of yesterday, Firefox won't load any webpages or firefox pages (e.g. settings, config, etc.). I've tried refreshing the install, uninstall/reinstall, and updating my Microsoft visual c++ redistributables and this problem persists. By "not loading webpages," I mean that it doesn't even show that it's directing to any webpages when I attempt to route to them. Any advice?

So I have no idea what happened besides a windows update since the last time I used the browser. I had 3 tabs open when I left yesterday for work and when I came back none of the 3 were loading just white screens and the loading icon next to the website just constantly spins I left it loading for 2 minutes before giving up.

I decided to try clearing out the cache, cookies, history, and basically all the options but passwords. Then I went ahead and tried again still no improvement. If I try opening a new tab and closing the others the same thing no difference.

I then noticed a windows update was going so I let it finish then restarted the computer and when it was ready checked firefox again and still nothing. So now I'm using Edge to type this out and am having no issue getting to any site that I was trying earlier.

Is there anything else I can do? Or is it like I gotta wait for a firefox update to come out?

Firefox updated automatically and stopped working correctly afterward. This included: instances of the browser not opening after closing all tabs (I have been unable to open Firefox again unless restarting/shutting down and booting up the pc again), webpages failing to load properly (seen in attached screenshot), links to websites or content like videos on YouTube failing to load if right-clicked and the option "Open Link in New Tab" is selected and must be clicked at least twice, otherwise they fail to load like in the screenshot, and hanging while connecting to some websites with certain addons active (namely google.com). I also have reason to believe trying to fix these issues crashed my computer by locking it into a perpetual loop of crashing, collecting error data, restarting, and crashing again. Going back to Chrome to write this, I have had no problems.

I have tried refreshing Firefox several times, disabled hardware acceleration in the options, reinstalled about three times after deleting all Mozilla folders on my pc, disabled browser addons one by one to determine if one of them was causing problems, and removed and added Firefox to my firewall's allowed connections at least seven times by now.

tl/dr; Firefox broke after it automatically updated and I tried every solution I could search up. The browser still isn't working. Please help?