Firefox Support Forum

Firefox takes about 5 minutes to load every it launches, before working smoothly like it should. This problem occured first time yesterday morning, and I have no idea what could have caused it.

It happens :

• when I launch firefox normally (whatever the profile)
• when I launch it from the terminal (it provides no output at all)
• when I tell it to launch the Profile Manager (5 minutes to see the Profile Manager appear, then 5 more minutes to launch firefox using the selected profile)

It does not happen :

• when I click "New Window" inside an existing firefox process
• when I call `firefox --help` from the terminal

Here's what I've tried :

• First, I've seen pretty much every article from Mozilla Support, Reddit or SuperUser (writing this question is kind of my last resort)
• I've tried removing and then reinstalling Firefox from Flatpak, from the Fedora repos (using `sudo dnf install firefox`) and using the manual install via the archive (v125)
• I've tried downgrading firefox (when using the package manager install) from v125 to v124
• I've also tried the Firefox Developer Edition, same problem here
• I've tried using the "Refresh Firefox" feature and restarting in Troubleshoot Mode (both are also affected by the slow startup, which makes them particularly painful to execute)
• I've tried manually deleting the `~/.mozilla/` folder (= manually deleting my profiles)

When firefox launches, it does not freezes my OS and does not seem to use many system ressources : CPU usage is normal, RAM as well, and it does not seem to read many things from the disk as well (I've seen some threads where this was the issue).

And here is something interesting that I discovered :

• loading (including refreshing) `about:profiles` is also slow and this time freezes firefox (OS reports it as not responding, I can't switch tabs and I can't see my mouse). Other about pages seem to work fine (although I did not try them all)

Thanks !

PS : Even if I think it has nothing to do with the issue, I prefer to mention it here : I was messing with virtual machines yesterday when the issue occured for the first time. My disk got full at some point and I don't know but it might have messed with firefox. At this stage, I had not deleted any files that could relate somehow to Firefox, that's why I doubt it would have caused anything harmful to Firefox. (instead, I mounted an empty partition from my disk to get some space)

Firefox is not opening. Every time I try to use it, I get the message:

" We're sorry. Firefox had a problem and crashed. We’ll try to restore your tabs and windows when it restarts."

I have submitted the crash report: Crash ID: bp-51f17766-7a20-41dc-ae3d-27ab10240501

I am running it on Fedora 40.

Thank you!

As the title says, after a certain update(I'm not sure which, probably within the last few months or so), firefox on my machine starts crashing randomly. Some crash reports:

https://crash-stats.mozilla.org/report/index/bp-3c8ccdac-bf09-41af-a459-a5e0c0240204 https://crash-stats.mozilla.org/report/index/bp-a5d887f3-3d75-4e09-a4af-823a20240204 https://crash-stats.mozilla.org/report/index/bp-1cb416ff-e338-445c-9ff3-016f30240204 https://crash-stats.mozilla.org/report/index/bp-3da43a7e-5952-4715-83cf-512aa0240204 https://crash-stats.mozilla.org/report/index/bp-c6778172-5281-482b-b815-ebf840240204 https://crash-stats.mozilla.org/report/index/bp-54dd6c03-a99c-4a08-8a7c-4c80d0240204

I'm using Fedora 38 workstation, GNOME as the desktop environment, and Mutter as the wm.

i tried changing any and all settings, clearing cache, using troubleshooting mode etc to no avail.

i use fedora 38 beta (it was also a problem on 37 stable) with ffmpeg installed.

i use biwarden, sponsorblock, ublock origin, stylus, google container, youtube shorts block and some custom css.

i am running a system with an i3 10105f, an rx 6600 and 16gb of ram.

firefox is installed with the version off of the firefox website.

reinstalling it worked briefly, but it broke again after a little bit of time.

i am sorry if i did not provide adequate information.

I run Fedora 37 with KDE Plasma desktop on my Asus laptop. I have been doing so for a few years now on various computers I have owned. I have never had a problem.

About a month ago, I noticed that playing a youtube video in Firefox made my mouse pointer disappear. It is not limited to the page.tab, but all of Firefox, menus, tabs and window controls. When I move my mouse outside of Firefox, the pointer becomes visible. Move it back, and it disappears again.

The mouse functionality still exists inside Firefox, i.e. the on hover highlights all work as does clicking, but the pointer stays invisible.

If I switch from Wayland to X11, this does not happen.

Please put Wayland support back again or tell me how I might fix this. Thanks

When I open my yoroi wallet extension , yoroi wallet is long time loading and my firefox and mouse cursor freezes then there is crashed . I'm using Firefox flatpak from flathub on Fedora Linux. Everything worked fine before. On the other browser it is also work fine. I think it happened after update Firefox. How can I fix it ?

What could be causing this to happen on many media files? Version 102.0 in Fedora 36 workstation. This is in a demonstration video about a Travel Trailer shower door installation on this page. Down the page in the reviews section. This happens on other sites also.

https://smile.amazon.com/Retractable-Rolling-Shower-Platinum-Replacement/dp/B07Y5KJYTZ/ref=sr_1_33?crid=14BZ2K3PJ1DJ4&keywords=irvine%2Bshower%2Bdoor&qid=1657297432&sprefix=%2Caps%2C189&sr=8-33&th=1

Thanks for any help in advance. Bob.

Fedora Linux v102.0 rpm.

I recently faced with some weird issue, there is two setting options for cookies in about:preferences#privacy : "Delete cookies and site data when Firefox is closed" under the Cookies and Site Data and "Clear history when Firefox closes" under the History. The problem is when i restart my firefox session this two setting resets, the first becomes disabled, the second enabled with additional enabled options of Cookies, Cache and Offline website data + website cookies always deletes causing unlogining no matter is site in whitelist in Cookies setting or not. The problem preserved in any Profile, even in new created one, reinstall didn't help.

I was using Firefox and Owl (the addon).

I just upgraded to Fedora 36. I treid installing Owl and an alternative called "Dark Reader" and both cause a message stating they are corrupted.

I enabled dark mode in the browser. Google immediately changed to a dark background which I can more easily see. This site ignores the setting and is forcing me to work with very limited ivsion

I can barely make out the UI. I found what might be a solution at https://support.mozilla.org/en-US/questions/1356233 but after hours trying to read it I gave up and am wirting here.

It is very frustrating that other sites respond to firefox settings and your support site does not.

Sometimes, I'll click a new tab, and "something" happens. It's like it tries to create a new tab, yet it's just a half-formed nothing that you can't interact with. And when this happens, Firefox is destined to eventually crash / become unresponsive. I literally have to reboot to get Firefox working again. I haven't tried logging out. That would probably work, too.

This also happens when moving new tabs, but I've only notice that happen on tabs with Youtube.com open.

firefox -V Mozilla Firefox 100.0.2