I-Firefox Community Forum

When I open Firefox it opens a maximized window with tabs, then it opens a minimized with a single tab, then it reopens a maximized window with all session tabs. Each window displays in succession, one window at a time.

I'm on desktop using Windows 11.

I just read a post saying this behavior was caused by the resist fingerprinting feature. Can someone explain how that causes the repeated opening of browser window 3 times. Is there a way to retain the anti-fingerprinting behavior w/o the multiple window opening behavior?

firefox stalls on ubuntu and the OS says it is running but I cannot or don't know how to restart/reset it from the terminal. A reboot of the computer solves the issue but I have to re enter the bios password etc. Is there a simple solution?

I keep getting this message- With firefox I get this message: Close Firefox Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window.

I have followed the instructions to resolve this, but none of them are working.

I recently updated my Mac OS to 15.4, and for whatever reason, ever since I did, Firefox stopped working. I can open it, but if I try to go to any web site it just has a dot bouncing back and forth like it looks like it's trying to go to the site, but then it times out. I have deleted and re-installed Firefox several times - the last one being version 137.0.2 for Mac, but it still won't open any site. I don't know what to do to get it working and Mac tech support had no ideas other than to contact Mozilla tech support, so here I am. Can you help me? This has never happened before and it makes no sense that it would not work. You can see by the enclosed screen shot that it opens, but fails to open any photos or go beyond that. The 'checking for updates' alert just keeps spinning and spinning. Rick Garside

i noticed that my laptop is getting too hot, when i opened task manger i found that Firefox is using a lot of ressources every time, i have a decent ram of 24GB and i7 7th gen plus an gtx1050, i don't think it's my work flow because i've been always using too much tabs without any problem, i suspect an update issue, what do you think ?

Power consumption of Firefox is so high that it nearly killed the display of my iMac. My screen started flickering with horizontal lines across the display. When i touched the screen, it was so hot that I could boil water using it. I did not realize that it was Firefox that was killing my PC until I looked at the power consumption (see the attached screenshot). I hope there is a solution to this since I really love Firefox and have been using it for well over a decade.

Apparently Firefox updated overnight and now my New Tab Page, which had a ton of tiles on it that I'd pinned over the years is now completely blank, no tiles, no nothing (except the Firefox logo). If there were at least some blank tiles, I'd have something to work with, but when I say blank, that's exactly what I mean.

Is there any way to get back the tiles I had? Because none of the pages I've opened or searched so far has created a tile on the page.

Thanks.

When I open FF 137 on my iMac running OS 12.7.6, it just keep trying and trying with no link. When I try and quit it needs to be forced quick to stop running. There are no fire walls and it worked yesterday 4-5-25 just fine, but no go today. I tried replacing FF and still no luck, what do I try now, [email removed]@yahoo.com

i've recently had problems with not being able to login to certain accounts (others are fine) resulting in hanging. other times i might be writing a message (or other) and the browser crashes. can you help me, please?

I recently updated my Firefox browser from version 136. to version 137. and after the update I was unable to get online to any website I tried and Firefox would freeze and crash, generating a crash report that Mozilla probably didn't get because firefox couldn't send it. Safari was working, as was Chrome, so I know it wasn't a network issue. I cleared the cache and tried again and still nothing. I then uninstalled Firefox and reinstalled it from the Mozilla website, (had to use Safarii to get the Mozilla website) and still could not get to any websites. I'm on a Mac runnning OS 15.3.2 and I have a bootable backup of my machine that still had a copy of Firefox v 136 which i reinstalled on my mac and it works. What can I do to update to 137?

I have observed that firefox has a coloring problem. When firefox is minimized to the toolbar, after a while, maybe a few minutes, when it is opened, there is always black uncolored content at the bottom of the screen, occupying about 1/3 of the height.

Attached are two screenshots.

Hello, please tell me why no web page opens and Google search is not possible? I also can't log into my account, the page doesn't load. Thank you in advance

Katya N

What is going on with firefox, are is it being even more dminished now by microsoft and google? since some update, i cant watch even a youtube video due to the length of time it takes with buffering and loading , and my university LMS pages arent loading and trying to download a pdf from researchgate not even working.

embedded apps like padlet dont seem to be working either

I have flushed out cookies and caches and restarted many times - still the same issues, I went in to troubleshoot mode and still the same issues.

If i try Microsoft Edge it seems things are working fine, and if i access firefox using a VPN (i am in australa, but i set it to a country in europe) then firefox works fine -- what is going on?

please fix this

Firefox was working normal, but the next day the program stopped working. Only changes was a security update from Microsoft Security.

If I click the Firefox icon, nothing happens, If i click to open Firefox as an admin, I get an nearly empty window for Firefox (Image added).

I have totally uninstalled Firefox (with the folder "Old Firefox Data"), and reinstalled Firefox, but to no avail !!!

Any solutions ???

Regards

I have been getting the following message several times: "Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window. Close Firefox" I check my programs and I am only running the current version on Windows 10 Pro. Why do I get this message?

Hi, strange things happening with Firefox of late. Eg, when trying to log in my mail on o2.pl with saved login/password, now the log in page loads and doesn't show the saved login, doesn't allow me to click in any box either (it previously did it flawlessly). When googling images, it only shows some images and when I scroll down it doesn't show more. Some pages won't load properly. "Content failed to load" on chatgpt. And miscellaneous other glitches on other websites. I have some tabs opened, I want to keep them, don't want to reset Firefox. The problems only appeared with recent updates. What to do? Best. W.

I use Pocket on my MacBook Air 2017 MACOS Monterey 12.7.6, and used it daily for years. I cannot access Pocket just now so cannot give you any data about its version. Below is a screenshot of the Firefox version that I just loaded yesterday but which is also refusing to load any link, incl. Pocket. No error message now; yesterday when Firefox refused to load anything, a message saying "Not Secure" showed up atop my screen left of the link I was attempting; it showed up for every link I tried, but is no longer showing up at all, though Firefox continues to be unable to load any link. Second screenshot below is my current attempt to load 2 links plus Pocket, a video of it would show all 3 loading attempts on the screenshot having the little dot moving back and forth side-to-side but never loading. Hope this helps! And thank you kindly for assisting me, Alasdair Coyne

Attachment(s) Screen Shot 2025-04-10 at 4.17.50 PM.png Screen Shot 2025-04-10 at 4.09.23 PM.png

Is this a bug or config problem?

Occasionally, FF (Linux desktop) starts using a lot of memory. I kill tabs (sometimes it is OK to kill YouTube or X, sometimes not)

Eventually it starts impacting the system using so much memory. I terminate the FF instance. Often. More often than not. There is a separate task still running and I get the "Firefox is still running" when I try to restart. I then kill the remaining FF task via the OS or the process monitor. Then FF restarts.

Is this an issue with addons (I am running very few - uBlock Orign, and Privacy Badger and Cookie AutoDelete. Are the only ones active most of the time) Or is it an actual bug with garbage collection, and tasks getting away? Or is it an OS issue?