Firefox 技術支援討論區

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.

My Firefox stopped working and now no pages load, cant access the setting, passwords, etc. i can write an adress in the search bar but it just wont load, no endless loading just a greyed out icon. I Have reinstalled firefox multipletimes aswell as refreshed it.

I am setting up new laptop running windows 10. I have installed Firefox browser several times with same result. Once installed Firefox will not launch reliably. If I restart computer, firefox will sometimes launch. Very frustrated, have used Firefox for 10 years on several machines with no issues. I am running Firefox 96.03 on a different laptop with no issues. Can I upload an older version of Firefox on my new laptop or can you help me fix the new version so it will work?

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?

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 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.

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

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.

So yesterday I got a new computer and downloaded Firefox to be my default browser. It worked fine the first few hours -- I was able to log into my account, set up my extensions, and use the browser as intended. A few hours in, though, it completely crashed on me. I am unable to go to new websites, refresh a page, open bookmarks, log in to my Firefox account, or even open settings; the home screen also doesn't load when I open a new tab. Literally the only thing I can do is freeze the Bookmarks Toolbar and customize the Toolbar. I tried closing and reopening, refreshing/resetting the browser, restarting my computer, going into Troubleshoot mode, deleting and redownloading the application, but nothing is working. I have no trouble with Firefox on my previous computer or my phone, and Edge is working fine on this computer. I don't know what to do anymore. Any help would be much appreciated.

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.

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?

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?

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

Hey folks, hopefully you can help with this mysterious issue!

I've been running Firefox successfully on my Windows 10 PC for a long while now. Last night, for some reason it simply ceased to work. New windows and tabs would not load any content. I also couldn't access the Settings at all (clicking on Settings in the browser menu produces no results or feedback.)

Yesterday, I had Firefox open all day (I usually have my computer on all day), and it was working fine. Around 8 or 9pm, I first noticed that none of my open tabs were loading any content, and the tabs had the "loading" animation playing. New tabs would also not load any content. I assumed it was an internet issue as I did see my internet connection get disrupted once or twice. I did not see anything (apps, etc) on my PC updating.

This morning I found Firefox was still not loading anything, although my internet connection was fine. I tried opening Chrome, and it ran just fine. Everything else that it is internet or cloud based on my PC is running fine too. So it seems to be an issue just with Firefox.

I have listed my steps to troubleshoot below, but I want to note one weird thing I observed: Even when Firefox is closed, and Task Manager doesn't show any Firefox processes open, my PC seems to think Firefox is running. For ex. while trying to uninstall Firefox or delete certain files, I would get a warning to "close Firefox first" or "can't perform this action while app is running." After seeing these, I would again confirm that Firefox appears closed and Task Manager shows no related tasks.

My PC build: - Windows 10 Home, 64 bit - Version 20H2 at start of issue (updated to 21H2 during troubleshooting) - OS build: 19044.1526

Things I have tried for troubleshooting already: - I have WebRoot on my computer due to my job, and I asked our IT staff if they could see WebRoot blocking anything related to Firefox on their end. They said it was not. - Used "Firefox Refresh" - Uninstalled and reinstalled Firefox - Cleared app cache / app data - Updated Windows from 20H2 to 21H2

Note: This message was sent on a different computer & browser

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!