Firefox Community Forum

Hi, I want to make a simple extension for Firefox that auto toggles vertical tab based on the aspect ratio of the Firefox window. I found `sidebar.verticalTabs` in about:config that toggles vertical tabs, but a simple googling tells me that it is not possible for web extension to modify about:config values. Is there any other API that toggle vertical tabs? Thanks!

When I try to run firefox 141.0 (Linux x64) I get:

libxul.so: undefined symbol: gdk_wayland_device_get_wl_seat Couldn't load XPCOM.

Is there a way to fix this?

I'm using Slackware 14.2.

Hi I recently installed a new webpage in Wordpress. It worked and I got the theme window on my website. I use two browser - Chrome and Fire fox. Now time for me to start installing a new "ready made" theme. It all looked good on Chrome when finished. I opened the same link in Firefox, but Firefox has not changed to the latest theme. https://condorentalpattaya.com I am totally out of clue. Removing cookies and other memory related functions does not work. I do not use Cloudflare. It works on my mobile.

??? Thanks in advance, have a nice day

For a couple of days now Instagram linked videos won't play here. Actually some of them will -- my own reels and anything linked with that button that looks like a movie 'clapper'. But videos that show the triangular arrow pointing to the right, nothing happens when you click. Not sure if this is a FF issue or maybe something changed at Instagram. Did a google search and nothing came up.

For some time now i have had issues with the browser. I get many warnings on Facebook and elsewhere that my browser is not up to date. Even the weather channel does this and now blasts me with ads , as before i had ad blockers and now I do not. I have downloaded both 16 and 32 bit Firefox for Linux several times to no avail.I need simplified help as I am not that tech savvy and it is important to me as i spend much time doing activism , signing petitions and passing on the truth. Thank you in advance

When i connect to vpn and force firefox to use system proxy settings everything is ok. But after disconnecting from vpn, browser just gives error 'proxy server is refusing connections'. It will work again if i set network settings to no proxy or auto detect proxy settings, but then vpn dont change my ip adress. My question is i need to manually change these setting everytime or there is a better solution to this?

When I select Dark Theme, I DON'T wanr to see this. I just noticed this on my Linux Mint desktop machine tonight when I logged in. I also have Dark Reader installed and it isn't affecting ioit eitherit either. Make this go away. It burnsssssss!

I'm trying to replicate my windows setup in Fedora 42. I have been really liking the new vertical sidebar tabs option in windows. I have a lot of tabs and so rely on inertial scrolling to flick through them quickly.

However, there's odd behaviour with this in linux. With the window protocol set to xwayland, inertial scrolling on the sidebar tabs works, but inertial scrolling does not work in websites. Setting the window protocol to wayland (the general online recommendation to fix inertial scrolling), inertial scrolling in the tab list does not work, making them much less useful.

Hi, my Machine updated from 140.0.4 to 141.0 since then I cannot start up Firefox anymore. On startup after a short pause the Crash Reporter shows up - interestingly the Crash Reporter may enter a endless loop and opens up multiple times. While that the CPU load is at 100%. I tried

• `firefox --safe-mode`
• `firefox --ProfileManager`

as well, for those I get the same behavior. I tried downgrading to 140.0.4 - after that a profile dialog shows up which tells me that a new profile needs to be created due to a downgrade. After that Firefox comes up fine with the new vanilla profile. IF Firefox updates to 141.0 (in background) the next startup with the vanilla profile doesn't work gain. Which brings me back to the initial problem.

Workaround for now:

• download 140.0.4
• create a fresh profile
• immediately disable auto update
• live with the empty profile

My environment:

• Linux Debian 12 on x86_64
• KDE Plasma
• nvidia drivers installed
• I am using Firefox from `https://download-installer.cdn.mozilla.net/pub/firefox/releases`

I encounter PR_CONNECT_RESET_ERROR when accessing to some websites

mainly github google and stackoverflow

Sometimes "Reload current page" will work, with multiple tries

I am in China and I am using v2ray+v2rayA for accessing foreign websites (it is a necessity)

This issue happen only on firefox, as edge and chrome can access without error

Is there some settings to disable the PR_CONNECT_RESET_ERROR feature?

Hello, I just used the Firefox 141.0 (aarch64) wizard for Raspberry Pi OS 1.0, to import bookmarks from Brave, however the wizard said 0 bookmarks imported.

I also manually exported and imported the bookmarks.html file and the latest bookmarks aren't appearing at the top. It seems the bookmarks are nested in some bookmarks directory by default. I'm confused?

Also I tried a manual import several months ago but same issue about some strange nesting structure rather than simply appearing at the top. Now I'm really confused and worried I'll lose my bookmarks as there's about 3 version in various nested structures. Please help just make an easy move to Firefox.

Pourquoi n'est-il pas possible d'entrer simplement les identifiants, sans les mots de passe, pour une saisie automatique des identifiants (généralement l'adresse e-mail) ?

For the past few weeks, my PC reliably crashed after a few chess games on chess.com with Firefox. GPU and Memory benchmarks are running through without issues, it did crash when starting a Steam game once before, but I wasn't able to find out why. At this point, I'm really curious to learn about what could possibly cause this, but don't really know where to look for it. Really wondering what special thing is happening after a game there that doesn't happen with other websites/browsers. Would really appreciate your help!

Running Wayland on Archlinux 6.15.7 with AM5 CPU and DDR5 memory. Sometimes wondering if it's a graphics issue since my display is connected via the iGPU, but I also have an NVIDIA graphics card installed that I use for games sometimes.

I am on Linux Mint 21.2, and I just updated Firefox (141.0). Now, the bookmarks bar, toolbar, and the tabs (everything above the displayed page), as well as the menu, bookmarks menu, and sidebar, are in light mode even though I have dark mode set (They were dark before the update). I tried playing with the Dark Mode settings to no avail. My system is set to dark mode in general. Are others experiencing this? Is there some sort of fix?

Hello everybody, I'm facing some problems with the camera settings: when accessing vcall sites (e. g. zoom or google meet) they don't ask permissions for the camera, it looks like I have no camera installed, which is not true, of course, and in fact with Ungoogled Chromium everything works fine. When trying to add manually the sites in the whitelist nothing happens, they're simply ignored. On the other side, the microphone settings work properly. Thanks in advance for any support.

Regards from Italy

Marco

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Firefox version 140.0.4 running on Fedora 42 KDE