Firefox internal & external web-page icons appearing abnormal
Hi, I am currently running FF 91.0.2 on Xubuntu 18.04 and recently icons are appearing abnormally on both Firefox internal web pages such as: about:preferences#privacy (see 1st pic),
as well as on external web pages such as: YouTube https://www.youtube.com/watch?v=1zrg2Vanfco (see 2nd pic)
I have re-installed FF and imported my old profile but no difference. I have tried to restart FF in Troubleshoot mode but it doesn't resolve the problem, what to do?
EDIT: Solution provided by cor-el solved the problem with Firefox internal pages. The problem with YouTube "new" black-and-white icons seems to be something else as these appear with other browsers too.
Ændret af m99 den
Alle svar (2)
Issues with checkboxes can happen if you have set "browser.proton.enabled = false" on the about:config page to disable Proton.
In Firefox 91+ you can no longer disable Proton and revert changes that come with this design via "browser.proton.enabled = false" on the about:config page. Best in Firefox 91 is to set browser.proton.enabled at its default value true as the false setting can cause issues with checkboxes.
In Firefox 91+ you need to use code in userChrome.css to override changes coming with the Proton design.
WARNING: This script is not provided by Mozilla and is not officially supported Creating a userChrome.css file and other ways of customizing Firefox that are not exposed in the interface are there for developers, not end-users. If it were intended for end-users, you would see a menu option or checkbox; you wouldn't have to hack a text file in a hidden location.
What this means is that even though the functionality you want is no longer supported, a third-party has found a way to do it using the CSS file. If it breaks in new versions, you will need to contact the person who provided the script.