Forum der Gemeinschaft Firefox

Hi Team, Hope you are doing well. I am not able to install firefox on my win 11 laptop Because of the error shown below. I tried to delete all temp files, I also, restarted my laptop several times and I did the scan to check corrupted files too. Please advice on the further steps.

Thank you.

i have payed ma donation for Firexfox and reached to upload a Window 10 version but was unable to install it because it was a 64 bit and my pc is 32 bit.

May i be refund or can you send me the 32 bit version ?

Cordially.

Jean-Paul Rosselli [edited email from public support forum]

Suddenly started getting a crash notice every time I closed or 'hid' Firefox. This morning I gave up and opened Safari. Tried to then open Firefox to get a password and found the entire app was gone. I had to go to Mozilla and load it again. It loaded with all my info so it must have been on my Macbook Pro somewhere? I THINK this started after a recent OS update on my Mac, which has included lots of annoying changes, esp to Mail. FYI, I'm running Sequoia 15.6. Why is this happening and is there anything I can do to solve it?

Hello! Very new to Linux but got a new laptop and installed Ubuntu on it. I've run into some issues logging into sites (specifically iCloud) and somewhere I saw someone say they fixed it by installing Firefox via the .deb package rather than through snap, as it's installed by default. Following the installation instructions here: https://support.mozilla.org/en-US/kb/install-firefox-linux#w_install-firefox-deb-package-for-debian-based-distributions-recommended I've run into a roadblock with adding Mozilla APT repository to sources.list. Copying the instructions for Trixie and newer, I've run into an issue where it's giving 'permission denied'. As I'm new to Linux, I'm not really sure what next step to take, short of just typing "sudo" everywhere to try to get it to accept it. Please assist! I would be grateful.

I’m trying to install the latest version of Firefox on Debian, as described at https://support.mozilla.org/en-US/kb/install-firefox-linux#w_install-firefox-deb-package-for-debian-based-distributions. I’ve tried twice, several days apart, but both times things fail at the third step, with the fingerprint not matching. Can I do anything besides try again later? I’m using Firefox ESR, as packaged by Debian, in the meantime.

When I click on the Firefox icon on my desktop to open it, it takes me to a blank page with a url type box toward the top of the screen with the word "Search" in the box. It is nonfunctional. I tried reloading Firefox, but I don't think it installed completely. What do I do to get Firefox to work properly?

my firefox keeps getting completely deleted from my system after repeatedly reinstalling and having it get delited from my windows 11 system i installed with administrator permission and the installation lasted for two days now this morning after working for about an hour it crashed twice on the third attempt to open it i found that it had been deleted what do reckon i do

I am installing Firefox (Latest from website) on a windows11 laptop. I had firefox many years ago and uninstalled it. I am reinstalling and I get a pop up that states: "Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window:"

I have uninstalled and went through my laptop to remove all references from firefox. Task manager shows no sign of mozilla or firefox running processes.

A check of the crash log is empty.

After being hacked, I removed my Firefox browser and tried to reinstall. However, what I got no longer uses Firefox but instead I can only browse using Google, which I don’t want.

Please help me install the Firefox browser!

Thanks

I had Firefox on my computer. Something went wrong with a Microsoft update on 8/15/25 (which I was not aware of) when I tried to restore my computer I found the update and it said I could not restore my Windows 10 version as it had been 10 days since the update. When I tried to re install Firefox I now get an error message that files are missing and I can't reinstall. Help me. I love Firefox and want to use it.

The following is the message I get is: System Restore failed to replace the file (C: \ProgramFiles\WindowsApps.temp\15191PeakPlayer.50533F9B98293_3.3.13.0_x64_y5c4dfz5b2 with its originalcopy from the restore point. An unspecified error occurred duringSystem Restore.(0x80070003)

Good morning, today I downloaded Debian 13 Mate version and to install Firefox I entered the following commands taken from https://support.mozilla.org/it/kb/installare-firefox-linux#w_installare-firefox-tramite-il-pacchetto-deb-per-le-distribuzioni-basate-su-debian-consigliato and the commands were

sudo install -d -m 0755 /etc/apt/keyrings

wget -q https://packages.mozilla.org/apt/repo-signing-key.gpg -O- | sudo tee /etc/apt/keyrings/packages.mozilla.org.asc > /dev/null

echo "deb [signed-by=/etc/apt/keyrings/packages.mozilla.org.asc] https://packages.mozilla.org/apt mozilla main" | sudo tee -a /etc/apt/sources.list.d/mozilla.list > /dev/null

echo ' Package: * Pin: origin packages.mozilla.org Pin-Priority: 1000 ' | sudo tee /etc/apt/preferences.d/mozilla

sudo apt-get update && sudo apt-get install firefox firefox-l10n-it

but I get this result OpenPGP signature verification failed: https://packages.mozilla.org/apt mozilla InRelease: Sub-process /usr/bin/sqv returned an error code (1), error message is: Signature by 35BAA0B33E9EB396F59CA838C0BA5CE6DC6315A3 was created after the --not-after date.Il repository "https://packages.mozilla.org/apt mozilla InRelease" non è firmato.

What mistake could I have made? Apart from the fact that now we use sudo apt update && sudo apt install Thank you in advance for your response.

How do I reinstall Firefox FROM SCRATCH when older settings (but not the .exe itself) is still on a Windows PC? Will deleting all entries in Windows Registry fix it?

Background is that I switched Sata cables for some hard drives (for an unrelated experiment), of which one contained the Firefox installation on D:. Then I ran Firefox, and somehow it seemed to work and I also was promted to install an update which I did. After some days I switched back Sata cables. Now I cannot uninstall old instances of Firefox that I can see in Win Settings -> Apps. Worse, I cannot install Firefox anywhere AND also make Firefox running without a crash after a few seconds. To remove all info in registry and hard drives might be the way to solve this?