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Firefox Root Certificate Expiration: Questions & Tips for Updating

Important update! On March 14, 2025, a critical root certificate in Firefox will expire. If you’re still using an older version (before Firefox 128 or ESR 115.13+), it’s … (read more)

Important update! On March 14, 2025, a critical root certificate in Firefox will expire. If you’re still using an older version (before Firefox 128 or ESR 115.13+), it’s crucial to update to Firefox 128 or newer to avoid issues with add-ons, DRM-protected content, and other features.

For full details, check out Update Firefox to prevent add-ons issues from root certificate expiration.

If you have questions about the update or need help with the process, this is the place to ask! Whether you’re just starting or you’ve already updated and want to share your experience, we’d love to hear from you.

Let’s come together, share tips, and ensure we’re all prepared. Drop your questions or insights below!

Asked by Lucas Siebert 4 months ago

Last reply by pixiegurrl 2 hours ago

Can't install Firefox

I can't install Firefox on my 2015 iMac, which is running Montery 12.2.6 OS. I had to reinstall everything after erasing my HD due to it not starting up for some reason, … (read more)

I can't install Firefox on my 2015 iMac, which is running Montery 12.2.6 OS. I had to reinstall everything after erasing my HD due to it not starting up for some reason, but now I get the message "“Firefox 135.0.dmg” is damaged and can’t be opened." every time I try to install Firefox. Any ideas how to get Firefox back?

Asked by 1007 2 hours ago

Firefox not working on new iMac

I want to download and install Firefox on my new iMac. As administrator it downloads but the instellation won't run. As a user it downloads and I can move the icon into t… (read more)

I want to download and install Firefox on my new iMac. As administrator it downloads but the instellation won't run. As a user it downloads and I can move the icon into the application folder. Firefox then opens but it won't run. Everything is frozen. What is going on??

Asked by 8s9yqh4z5t 12 hours ago

Last reply by James 6 hours ago

Thunderbird

Thunderbird stopped working on my old Mac Mini (2014). I bought another used Mac Mini (2018), running on Sequoia 15.3, and hoped to install Thunderbird on it, but so far … (read more)

Thunderbird stopped working on my old Mac Mini (2014). I bought another used Mac Mini (2018), running on Sequoia 15.3, and hoped to install Thunderbird on it, but so far I can't. When I try to set it up, it says my account is recognized, but when I click done, I get the message "Unable to log in at server. Probably wrong configuration, username or password." I suspect it's the configuration. I tried my old Mozilla password, when that didn't work, I created a new one, but that didn't work for Thunderbird either.

My email comes from my ISP — AT&T — whose email service is powered by Yahoo. When Thunderbird stopped working on my old computer. I started using MyYahoo email (same email address), but I'd prefer going back to Thunderbird, which is much better for archiving and directing incoming email to folders I create.

Please help.

Asked by petergrfx 8 hours ago

Raskbar Shortcut Firefox

Hello, I would like to know the command line that allows Firefox to propose the creation of a shortcut in the taskbar when Firefox is first run Example "C:\Program File… (read more)

Hello,

I would like to know the command line that allows Firefox to propose the creation of a shortcut in the taskbar when Firefox is first run

Example "C:\Program Files\Mozilla Firefox\firefox.exe" -CreateTaskbarShorcut

Thanks

Asked by Xavier PRIEUR 14 hours ago

firefeox flatpak for chromebook

I followed the instructions to install flatpak and then firefox (from the Mozilla pages) and got to the end, but Firefox was not not the path. There was a shell script in… (read more)

I followed the instructions to install flatpak and then firefox (from the Mozilla pages) and got to the end, but Firefox was not not the path. There was a shell script in/home/edg/.local/share/flatpak/app/org.mozilla.firefox/x86_64/stable/869b4e0279ab4475432b2930ae5d583b7a0e00bac1078b8848d163820a152fa5/files/bin/firefox but it led to /app/lib/firefox/firefox. The /app directory doesn't exist.

Not sure what is wrong.

Asked by edg2 14 hours ago

Flatpak profile config compatibility with the aur profile compatibility

Hi - I wanted to migrate all my changes made in the flatpak app to the aur version. I noticed the profile content has a different structure in both - aur and flatpak conf… (read more)

Hi - I wanted to migrate all my changes made in the flatpak app to the aur version. I noticed the profile content has a different structure in both - aur and flatpak configs. And any attempts to replace profile content with the other resulted in browser ignoring these and initing new config files. Was wondering if my config can be ported over or thats not possible thanks.

Asked by jayp01 1 day ago

Last reply by Andres Morales 22 hours ago

Firefox Spec Questions on Recent Update

Hi! I have not thought about changes to Firefox and after speaking to someone I found out a potential change that I was not aware of. I have not been able to find a def… (read more)

Hi!

I have not thought about changes to Firefox and after speaking to someone I found out a potential change that I was not aware of.

I have not been able to find a definitive (except AI generated) answer to confirm or deny his claim that Firefox switched over to Chrome/Chromium's web engine.

My understanding is that they have always used their own being a FOSS alternative to major brands.

I use 133.0.3 (64bit) Mozilla Firefox for Arch Linux archlinux - 1.0 (right now but updates are very common)

Am I in reality using Chrome/Chromium just in different clothes, or is this still the same FOSS Firefox that I have been using for years?

As a side note, I did find out that the coding for Extensions/Add-ons have been updated to reflect the way that they are coded from Chrome/Chromium but that is not enough to give me a definitive answer as to the underlying interface.

Asked by deeppurplefedora 1 day ago

Last reply by James 1 day ago

No audio

No audio coming out of any website while streaming using Firefox. No issue with Google Chrome. This started recently. Windows 11 Home Edition Version 24H2 Build 26100.… (read more)

No audio coming out of any website while streaming using Firefox. No issue with Google Chrome. This started recently. Windows 11 Home Edition Version 24H2 Build 26100.3194

Any help?

Thank you

Asked by Eric Coulombe 1 day ago

firefox wont work after windows 11 updates complete

i am running windows 11 after windows updates, my firefox will open but the search bar does not open and i cannot use it i uninstalled and reinstalled firefox i went t… (read more)

i am running windows 11

after windows updates, my firefox will open but the search bar does not open and i cannot use it

i uninstalled and reinstalled firefox

i went to settings to make it my default browser

no help

Asked by Mike Roe 1 day ago

I am unable to add my own wallpaper for the new tab in nightly while my friend is able to.

He said its down to some update which for some reason I dont have but in the attached image, he is able to add his own wallpaper in nightly but I am not for some reason. … (read more)

He said its down to some update which for some reason I dont have but in the attached image, he is able to add his own wallpaper in nightly but I am not for some reason. Would love some support

Asked by carbengenshin 2 days ago

Last reply by TyDraniu 1 day ago