Firefox Community Forum

I use a Firefox browser and a few days ago I got a message on my screen saying I wouldn't be able to use it after January 2025. I didn't read the message properly so I can't give any details.

I have looked at system requirements to update my current version but as I will explain it is not possible for me to update: I am using an old iMac - OS X version 10.9.5 The firefox version is 78.15.0esr (64-bit)

To update I need to have at least Mac OS 10.12 or later.

I am not computer literate so I cannot update my Operating System so I won't be able to download a more recent version of Firefox browser.

• Will my current version still work after January (but with no new security updates)?
• or will I not be able to use my Firefox browser at all?

Hi,

When adding a YouTube comment when in Firefox 'Dark' Mode, the font is currently defaulting to Black characters on a Black background, making the content unreadable.

It should show as White characters on a Black background.

However, this is not a problem is you are 'replying' to an existing comment.

But, when I switch to Firefox 'Light' mode, the comment text appears as expected, Black characters on a white background.

I have no idea whether this is a Firefox or YouTube issue.

Ant clues?

i am using the Windows 10 PC version of Firefox, with updates set to automatic.

i've been having a consistent issue where themes won't be maintained between restarts of the application. If i set it to any theme, close the browser, and reopen it, it will show the chosen theme for about a second, and then revert to a strange non-existent theme that is a slate gray background with white text and no color accents. It will still show the selected theme as being active in the themes menu, and disabling and re-selecting the theme i want will make it reappear again.

i've been ignoring this issue thus far as it's just a cosmetic issue and i didn't care enough to go digging for a solution. However, with the 133.0.3 update yesterday, the default theme is getting messed up as well. It seems like it's mixing up the light and dark themes, as it has the grey/black background, but all the secondary text is displaying in black, meaning i can't see the text in the application menu, address bar, or bookmarks bar folders.

This issue is occurring with Mozilla themes, Marketplace themes, and custom Color themes. Does anyone know of a fix for this issue, or at the very least a fix for the black text?

Last Friday I took up the firefox update. I always wait 3 days b4 I do in case there are any bugs. Lost everything on desktop and there was a msg " This update is not compatible with yr computer, please re-instal firefox" but it was a catch 22 situation cos every time I tried to re-install firefox I got nothing but the same message! I had version 133.0 (64 BIT) and the newer version was & still is 133.0.3. Eventually Edge came to my rescue and took me back to the older version (133.0). Then a couple of days later I'm getting incessant offers to update! I checked the Firefox updater & the new update is the same as the one that caused my desktop computer to crash so keep dismissing it unless u can promise me it wont happen again! My son is an IT specialist; he had to drive 100 miles to come help me get back everythng I lost. I dont like the newer update .. not interested in side bars; just want it to be the same all the time! So question is: if I take up the newer update, is it still incompatible with my comp? Am running W10 on it.

the browser is to laggy and i think there is something wrong, I reset it, removed and reinstalled would cause be the cause of that knowing I don't that face that issue on other browsers

Firefox has lost my Custom settings to include a Two column layout and My Favorite Bookmarks. My Email was accessible with the layout and My favorite sites. Now I just have one column and no Favorites or email displayed. Is there a way to restore my custom layout?

Recently, Firefox on my MB Pro (M1) has been freezing up or drastically slowing down due to "FirefoxCP Isolated Web Content" processes (multiple). What is this? How do I fix it? Is this a deal breaker for using Firefox as my default Mac browser?

I'm running Firefox 122.0.1 on a Windows 10 desktop PC, with a profile which includes a userChrome.css file which makes several layout and cosmetic changes.

I also have a laptop (also Windows 10) which has an old Firefox 97.0.1 installation, and I'd like to make the same changes on this machine which I'm used to on the main computer. I copied my desktop profile to the laptop, to the same directory as its present profile, but when I rebooted Firefox the transferred profile wasn't recognised.

While doing the transfer I received error messages about some of the folders: Destination path too long. This despite the fact that the registry flag to accept extended paths is set to 1. I had to skip several folders in order to complete the transfer.

Could this be the reason why the new profile isn't being picked up? Or is it because the two Firefoxes are of different versions?

I'd be grateful for any thoughts. Many thanks.

In Settings -> General -> Files and Applications -> Applications I have set "Portable Document Format (PDF)" to "Open in Firefox".

Opening the PDF on http://www.spectronicdevices.com/pdf/TCD1205D.pdf displays that exact link in the URL bar and I can read the PDF directly in Firefox. As far as I can tell, the file is not saved on disk. Opening https://www.alldatasheet.com/datasheet-pdf/download/32192/TOSHIBA/TCD1205D.html and entering the 5-digit code opens a new tab that also allows me to read the PDF in Firefox, but the URL bar shows "file:///C:/Users/N/AppData/Local/Temp/TCD1205D.PDF". The file is saved in my temp folder.

How can I configure Firefox to never save PDF and XML files to disk?

I am using Firefox 130.0.1 on Windows 11.

I was trying to install the lower version of Mozoilla firefox which is compatible with some other website with profile change option and therefore lost all my 100 plus saved passwords. How can I recover the same as I was not logged in from any email I suppose.

I did see the question here: https://support.mozilla.org/en-US/questions/1448269

And the answer is not useful, mainly because apt-get does not use a browser to update its cache.

Err:16 https://packages.mozilla.org/apt mozilla/main all Packages

 400  Bad Request [IP: 34.160.78.70]

E: Failed to fetch https://packages.mozilla.org/apt/dists/mozilla/main/binary-all/Packages 400 Bad Request [IP: 34.160.78.70 443] E: Some index files failed to download. They have been ignored, or old ones used instead.

Using curl/wget/httpie works as intended, just apt-get update fails.

Any help would be appreciated.

Hi,

I have a laptop with an AMD Ryzen 7 8845HS CPU, including a Radeon 780M iGPU, running Ubuntu 24.04. In order to fully utilize the GPU by supporting OpenCL acceleration I installed the additional drivers by: `sudo amdgpu-install --usecase=graphics,multimedia,opencl --opencl=rocr --opengl=mesa`

After that programs which benefit from OpenCL acceleration recognize the GPU, however firefox starts crashing with the following error msg:

XPCOMGlueLoad error for file /usr/lib/firefox/libmozgtk.so: libwayland-client.so.0: failed to map segment from shared object Couldn't load XPCOM.

It seems that the AMD GPU drivers registered their libraries in `/etc/ld.so.conf.d` as 10-rocm-opencl.conf, 20-amdgpu.conf which means that libraries within the given folders are found first.

This applies to the libwayland-client library, which is used by `/usr/lib/firefox/libmozgtk.s`:

ldd /usr/lib/firefox/libmozgtk.so | grep amd libwayland-client.so.0 => /opt/amdgpu/lib/x86_64-linux-gnu/libwayland-client.so.0 (0x00007013767bf000)

Interestingly the same `libmozgtk.so` library is used by thunderbird:

ldd /usr/lib/thunderbird/libmozgtk.so | rg -i amd libwayland-client.so.0 => /opt/amdgpu/lib/x86_64-linux-gnu/libwayland-client.so.0 (0x00007d44b0f41000)

However thunderbird just works fine, so I expect that there might be something wrong with firefox utilizing this library.

Maybe I should also mention, that I'm not even using wayland as desktop compositor, but good old x11:

echo $XDG_SESSION_TYPE x11

Is there any way to further debug this issue?

Years ago we used a program called A&M Deadlink to clean up dead bookmarks in FireFox. What is the latest tool for deleting old bookmarks, removing dead ones and cleaning up?