Firefox Community Forum

I'm not sure what this feature is called in Firefox lingo...

On my Mac, Firefox will remember which windows belong on which virtual desktops, and so open up with them on the correct (well, not exactly, but sorta) virtual desktops after a restart of the app.

On my new Windows 10 installation, though, Firefox has learned that a specific window was moved to virtual desktop 2, and now INSISTS that that window should always open on the desktop after a restart, regardless of on which desktop that window was actually placed when Firefox was shut down.

Is there a quick fix for this issue, or at least some way to disable this feature?

Thanks :)

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Is there a way to change the app name on the title menu bar on Macbook. "Firefox Developer Edition" is too long and takes up valuable real estate. I tried going into about:config, pulling up the browser.display.titlebar and editing the name, but doesn't change anything? Thanks for your help!

While opening any Google Drive folder, or by opening docs/sheets start page, none of the contents show up. In the bottom left corner there is an error: "The server has encountered an error. Please try again later." . No amount of "trying again later" works , but through trial and error (disabling modified settings in another profile) i found the culprit of this error message: in about:config setting called network.http.referer.spoofSource was set to true, setting it to false makes the issue i described above disappear.

While my issue is solved, I still don't understand why on every Firefox profile i create this setting is set to true, and whether changing it is a security concern

In regards to the Privacy & Security under Tools. How can I change the size of the fonts?

In viewing Privacy & Security, I was in Passwords verifying info and I had been working on a spreadsheet through Open Office I changed my fonts size on the spreadsheet but it seemed as though it changed it in the settings for my passwords under Privacy & Security. How can I resize my fonts on the Mozilla Firefix application?

I just updated Firefox to 138.0 and 130.1. I doesn´t see my bookmarks anywhere, all gone can´t even see the sidebar or menubar, is it a bug or what ? an anybody tells me what´s going on ? I use Windows 10 English version.

Mera linkdin account login nhi ho raha hai Mene apna account government I'd se verify bhi kar rakha tha Mene account me 9549558030 Is number ka use Kiya hai mujhe apne account ko wapas Lena hai Help me please

Is there a way to fully disable HDR support in the latest Firefox (138.0.1)? I use it on Linux/Gnome (wayland) where even though HDR support is disabled system-wide (gdctl confirms that) as well as on the monitor, Firefox insists on displaying YouTube videos in HDR resulting in washed out colors.

Looking into the issue I found that disabling the config flag layout.css.video-dynamic-range.allows-high seems to disable HDR but I'm not sure if this is the appropriate way or if there is another switch I currently don't know.

Any help is welcome!

I updated Firefox to version 138 yesterday(29rd April). I use latest stable version of Linux Ubuntu. Sites itself will work, but top of browser wont. Can click open new tab from +-button, but can't close it.

Browser stops reacting to mouse clicks when browsing on certain sites(Noble Horse Champion, Flight Rising, FB, Gmail) after hours of browsing and I have to use right-click to navigate on those sites.... until I restart browser. I tried to close tab and refresh tab when these problems occurred.

I think this is clearly browser problem(because clicked areas are on browser, not inside tabs), not problem in sites itself, because problem manifested itself after hours of browsing, not immediately.

Edit: I'm not well-versed enough to write Bugzilla-report. Also in 138.0.1-1 version, where I updated 3rd May 2025.

Edit 2: I've added picture of area that stops working. Edit 3: On another picture, can't close "Archaeology" tab, no matter what.

I have been trying to set group policy for ublock-origin extension in firefox linux.

per the docs, https://github.com/gorhill/uBlock/wiki/Deploying-uBlock-Origin:-configuration#toadd

I created a file "~/.mozilla/native-messaging-hosts/uBlock0@raymondhill.net.json"

with content

{

   "name": "uBlock0@raymondhill.net",
   "description": "ignored",
   "type": "storage",
   "data": {
       "advancedSettings": [
           [ "disableWebAssembly", "true" ]
       ]
   }

}

but no matter what i add here, nothing is getting reflected back to extension settings. can you guys please advise on what to fix here