I-Firefox Community Forum

Hallo, ich finde auf deutsche keine Support-Seite um eine Frage zu stellen. Auf meinem alten WIN10 Pc lässt sich Firefox nicht mehr starten. Ich öffne es aus der Taskleiste oder von der Verknüpfung auf dem Desktop. Es tut sich aber nichts. Ausführen als Admin hilft auch nicht Ich hab dann über den Taskmanager geschaut ob das Programm im Hintergrund läuft. Dort wird es auch nicht angezeigt. Ich hab dann Firefox gelöscht und neu installiert. Aber das hilft nichts. Ich habe keine Ahnung was ich sonst machen kann. Über Google findet man dazu absolut nichts. Alles hat funktioniert aber von einem auf den anderen Tag ging nichts mehr. An meinem Anitvirus-Programm kann es NICHT liegen. Auch mit deaktiviertem Antivirus-Programm startet Firefox nixht mehr. Bitte um technischen Support. Danke

Hello, I can't find a support page in German to ask a question. Firefox won't start on my old Windows 10 PC anymore. I try opening it from the taskbar or the shortcut on the desktop. But nothing happens. Running as administrator doesn't help either. I checked the Task Manager to see if the program was running in the background. It's not showing up there either. I then deleted Firefox and reinstalled it. But that didn't help. I have no idea what else I can do. I can't find anything about this on Google. Everything was working fine, but then suddenly it stopped working. It can't be my antivirus program. Even with the antivirus program disabled, Firefox still won't start. Please provide technical support. Thank you.

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Hi,

I am using OS MX-25 Linux and after importing my previous FF profile from an earlier version of MX everything in Firefox 145.0 was fine: my bookmarks and extensions all loaded and everything was tickety-boo. However, after I attempted to relaunch FF I got the following message:

Your Firefox profile cannot be loaded. It may be missing or inaccessible.

I have tried numerous times to launch FF but just keep getting this message.

Eventually it launched, but after a while pages refused to load properly and so I closed it down. Since then, I have been unable to get FF to open.

Any help would be greatly appreciated.

Hi, da anscheinend Firefox zu faul ist um einen eigenen Support an de start zu bringen, muß ich es auf diesem weg probieren. hauptsache man kassiert die kohel für die plazierte werbung. bei einem Win10 64bit starte Firfeox nixht mehr. auch nicht als admin. wenn ich es anklicke, passiert nichts und ich bekomme es auch nicht im taskmanager angezeigt neuinstalation bringt nichts danke euch

Firefox did an update and "couldn't find XPCOM" and crashed. Uninstalled and re-installed but now my Firefox icon opens a website "nine.com.au". I WANT MY FIREFOX BACK!!!!!

I just installed Fedora KDE Plasma, and have been trying to launch Firefox, but it keeps completely freezing.

I have tried installing through snap, flatpak and fedoras database, most recently I installed from the tar.xz on the website, and tried launching in safe mode. All of these result in the same behavior.

Tonight I received a notice that a new version of Firefox was available and asking if I wanted to download it. It showed me the new Kit mascot so I decided to let it install. It seemed to install normally but when it tried to open what I guess is a welcome/new features page, it crashes, and just showed a prompt to try again. This continued in an endless loop and I had to shut it down. Unfortunately I no longer had a functioning version available that I could find so I downoaded the ESR version to be safe (ver 140.5.0esr) which I am now using. Somehow I was able to recover bookmarks and hopefully other saved info. Can anyone advise what has happened? I have used Firefox for many years and never had this sort of problem before. Running Windows 11 on a new Dell i7 PC.

No matter what I did(and I did go through all the steps suggested on line) the program locks up my computer when I would try to start it. I'm on a Windows 10 lap top ver. 19045 with a fresh reinstall of windows.

I tried uninstalling and reinstalling, both under user and admin rights, getting fresh install files with and without having the security and firewall on, running it under admin rights without security or firewall. I tried repairing the program before uninstalling it.

Nothing worked. The program would lock up my computer every time I tried to start it. my only choice would be to power down the computer and start over. I was looking for a browser less resource hungry than Google and not quite as intrusive. Maybe you can suggest one that works.

Moderator note: This question has been edited to correct the formatting.

on clicking the firefox icon on my screen, it flagged this message: Firefox.exe – entry point not found The procedure entry point GetTempPath2W could not be located in the dynamic link library C:\Users\computer_name\OneDrive\.javaws\Desktop\Firefox.exe.

however, i am submitting this only with a view to better understand the usage on the end-user's side. thakns, regards, jason brown.

Firefox tab crashes whenever I try to open Firefox. I have AOL and Firefox browser. I've tried the close and reload, restart laptop, and redownloading Firefox to no avail. However, I was able to open my AOL and email. I reached this help page using Edge.

When I approved the installation of the latest Foxfire update this morning, I got the message "Couldn't load XPCOM." Another popup message included "error status 0xc000012f." Firefox does not work. Thanks, Joan Karrie

I am on Windows 10 Pro (extended to Oct 2026) and use the Firefox profile manager at startup since I have more than one profile. Today (11/12/2025) I attempted to start Firefox and the profile manager window would not populate. the window was blindingly white on my dark background. I closed and restarted umpteen times but it refused relentlessly. I was about to uninstall firefox and then decided to see if I had actually installed it on any of my mobile devices. And indeed I had it on my ancient Apple iPhone 7+. And it was synced! I refreshed the sync and indeed it picked up my most recent activity from last night. All tabs were synced. To make sure I had another synced copy I also installed it on my iPad. I synchronized this too and suddenly my desktop browser started working again.

I don't know what caused the lockup of the Profile Manager but I am afraid it might happen again. What causes this and what can I do to regain control without having to reinstall? I am a researcher and I have over 1000 tabs open.