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Which section for tweak?

Where can I add browser.display.show_image_placeholders=false tweak? I find it useful. -- 20:05, 6 October 2012‎ Flu

Horizontal tabs

The userChrome.css tweaks described in this section don't seem to work anymore (FF55). Can anyone check back and update/remove the section? Iuno (talk) 01:16, 20 September 2017 (UTC)

Firefox Quantum

Some addons referred here have no plan to be ported to Firefox Quantum and should probably be moved to another area. Kewl (talk) 20:36, 28 November 2017 (UTC)

Remove full screen warning

I'm using Firefox stable version (61.0-1) and it doesn't show anything anymore when it goes to full screen.

{{J1simon (talk) 14:48, 20 March 2019 (UTC)|15:11, 27 June 2018‎|J1simon}}

Hide window border and title bar

This is natively supported in the latest versions of Firefox:

{{J1simon (talk) 14:55, 20 March 2019 (UTC)|15:11, 27 June 2018‎|J1simon}}

may require MOZ_GTK_TITLEBAR_DECORATION=client environment variableUbone (talk) 13:17, 6 July 2018 (UTC)
No, it doesn't need any environment variable: and Firefox 66 will use CSD by default on Linux (
I think this content should be removed for outdated.
J1simon (talk) 14:55, 20 March 2019 (UTC)
Still required in 68 for Weston or maybe another WM. It's also needed to have the option to switch the Title Bar on/off. -- Ubone (talk) 15:17, 20 March 2019 (UTC)

Enable WebRender

This content should be clarified.

gfx.webrender.all = true only works on Firefox Nightly (

To enable WebRender on Firefox Stable the process is different (

These environment variables have to be created:


and ( :

echo 'pref("gfx.webrender.program-binary", true);' >>$HOME/.mozilla/firefox/<default-profile>/user.js
echo 'pref("gfx.webrender.program-binary-disk", true);' >>$HOME/.mozilla/firefox/<default-profile>//user.js

J1simon (talk) 15:16, 20 March 2019 (UTC)