Firefox Community Forum

I've been getting warning messages telling me to update Firefox or security certificates will expire on 14th January. I clicked on Help -> About, but it doesn't check for updates. I also tried going to Preferences, but I still can't see a way to install updates.

I downloaded a version from here https://www.mozilla.org/en-GB/firefox/download/thanks/ I unpacked it into my home directory, but I'm not sure how to install this version.

I'd like to be able to import my current session into the new version of firefox.

Any help would be appreciated.

How long before Nightly download site is available again?

https://download.mozilla.org/?product=firefox-nightly-latest-ssl&os=linux64&lang=en-US returns:

Did Not Connect: Potential Security Issue

Nightly detected a potential security threat and did not continue to download.mozilla.org because this website requires a secure connection.

What can you do about it?

download.mozilla.org has a security policy called HTTP Strict Transport Security (HSTS), which means that Nightly can only connect to it securely. You can’t add an exception to visit this site.

The issue is most likely with the website, and there is nothing you can do to resolve it. You can notify the website’s administrator about the problem.

Learn more… Websites prove their identity via certificates. Nightly does not trust this site because it uses a certificate that is not valid for download.mozilla.org. The certificate is only valid for the following names: *.bbcollab.cloud, bbcollab.cloud

Error code: SSL_ERROR_BAD_CERT_DOMAIN

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!

I kept receiving notice for automatic update to esr version until yesterday 1-12-25, I believe it stated book marks would be automatically included. Now today I have to go in manually to get update but unknown of all by bookmarks will follow as well. My old version 109.1 64 bit. Thank you.

In my previous mail I stated, that after the last Firefox Update last week virtually all my Bookmarks in the Bookmark sidebar AND the Bookmark toolbar have been blanked out i.e. the URL links have been eliminated, the ext is still there with a 'world icon'. Firefox does not let me restore from a saved .json file. Please let me have a solution for this problem, which is absolute first since using Firefox 1 1/2 decades ago. Thank you

My main, daily used computer updated to FF 134.0 when it was released. Two other computers that are less used will not. All are Win10. The two computers were booted up this weekend, but when you try to check for updates, it says they are already up to date. Both are 133.0.3 and have never had update issues before.

Was the 134 update pulled for some reason?

I know I can probably manually download and install the update, but am worried there may be problems with 134.

just trying to remember howto set up Linux with Firefox ,Arduino, and python, python Serial Library plus all the other under lining principles of Ubuntu Extensions , Extensions ! I have a way's to go  !

I want to update Firefox but also version Firefox-134 causes the same problem as all previous versions newer than Firefox-95: GUI is not started in my Linux system despite all the requirements noted on the Mozilla pages with the release are satisfied. Basing on that I have read and experimented as well as on response to my bug report, https://bugzilla.mozilla.org/show_bug.cgi?id=1938497 I suppose that the new versions of Firefox are not able to start GUI using libGL backend GLX and they require LibGL backend EGL only. This requires libEGL version and other associated libraries that are present only in newest versions of Linux distributions like Fedora-41. These new versions are for new hardware and it is pointless to install them on older hardware because they would work probably ineffectively and cause problems. Linux is very customizable and users introduce adjustments and install software created by themselves, for years. That is why an update to radically new version of the Linux distribution is justified after buying a new computer. This would be required for making the Firefox-134 binary provided to run with GUI as well as for possible compiling it from source.

That is why I would like to ask for consideretion of submitting Firefox-134 binary statically linked (at least the libraries that are required for GUI) so that it will work with GUI on older Linux systems obeying the requirements noted on mozilla pages with Firefox releases, assuming 4-8 GB RAM is available.

Hello all,

During clean-up of my laptop I noticed 31 language package files in C:\ProgramData\O949. File names look like: langpack-en-US@firefox.mozilla.org, and they all originate from 23-Jan-2017 so I guess they're very old files which might be relevant anymore. As these 10,058 files occupy 56 MB I'd like to remove them from my laptop.

Does anybody know if such task is wise, not harming current running FF v131.0.3?

I have a user at my job that installed the latest Firefox update (13324.11.21) through our MDM. After installing this update she cannot launch Firefox. When attempting to launch she receives a request for a username and password to install a Helper Tool. She is an admin on her machine and enters her credentials. The message closes and nothing happens. When attempting to launch again the same thing happens. This is not happening with our other 100 Macs who have the same Firefox version and others who have the same OS.

Is anyone able to tell me why this is happening or how to fix? Any assistance is very much appreciated.

The below troubleshooting steps have been done:

Uninstalled and reinstalled Firefox

Updated the OS to 15.0.1

Disabled the Master Password on Firefox through a Mac Profile

Checked if there was a Firefox file under /Library/PrivlegedHelperTools

Granted Full Disk Access to Firefox under System Settings

Hi, so i have a question: what are your plans to support windows 10 after 2025? How about windows 10 iot ltsc which is supported until 2032? Will firefox still be supported after 2025 on the iot ltsc version? Or will i have to switch to linux?

I downloaded the latest version of Firefox. The directions tell me to open the file that i just downloaded, which is fine, except that I don't know the file name or location. What is it, and where is it? or how do I f find out?