Firefox Support Forum

Firefox opens in a small box at the top left of the computer screen about 1/9 the size of the viewing area. I have to click on the "maximize" icon (the square box(es)twice to get a normal viewing screen. Note: I am not referring to "full screen." This began after the last Firefox update. I have cleared the cache, cookies, data, etc. and startup cache and restarted Firefox and the computer. I haven't "Refreshed" Firefox, yet, because I don't want to go through the hassle of putting everything back together if it isn't going to work. How do I get Firefox to open in a "maximized" window?

Firefox will start once (maybe) and then it makes no difference where I click from (tray, programs, desktop shortcut) Firefox refuses to boot up. I've tried re-installing multiple times. If I reboot, it will start. Also sometimes I will get a New tab but the page/URL never comes up. Firefox just hangs. I'm running Windows 11.

I just installed the Firefox browser using the installer on the official website. When I attempt to open Firefox, even as administrator, the window either quickly opens and closes or doesn't open at all. I have no clue what is happening.

why is FireFox 95 opening multiple windows on startup with Windows 10, Roboform, & Norton 360? FireFox is set to open a new tab, not new windows, so I do not know why it is doing this? I see lots of people asking this question, but there is no guidance online. What is up? This is causing FireFox to use way too much resources, and slows the computer.

In the last few weeks FF has started running really slow. Launch takes 4-5 minutes, the browser won't navigate to any webpages. Preferences can't be opened. The force quit window show the app to regularly moving in and out of a "not responding" state. I had version 95.0.2 installed (the latest). I'm running OSX 10.15.7 (catalina). I uninstalled an reinstalled 95.0.2 and the same problem persisted. I downgraded to 94.0, and created a new profile in the process, and still had the performance problem. Chrome and Safari don't have the problem, and my machine is running as expected with all other apps. I don't have any sites load upon launch. I have 16G of RAM.

Since I can't open prefs, I can't purge caches or anything like that.

I have stated this issue once before after trying to find a solution by myself.

My query: https://support.mozilla.org/en-US/questions/1363376

Whenever I boot up my laptop, firefox starts running in the background taking up a lot of memory space and cpu utilization. I have been with ffirefox since I started using laptops which is 7-8 years back. I never thought of switching browser or finding an alternative of firefox until for some months the issue is occurring. Now I am really annoyed to open up task manager every time and close firefox which is running in the backgroud. I have seen nothing unusual in the "about:performance" tab of firefox.

Please help me to continue my journey with firefox.

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.

Can you put one of those hourglass "wait" symbols to show on the next update because I never know if Firefox has booted or not and if you hit it again, it corrupts the next boot and wastes a bunch of time.