Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

How can I change background color of page before loading starts?

  • 1 reply
  • 2 have this problem
  • 5 views
  • Last reply by Taku

more options

I tried adding style to userChrome.css

@-moz-document url-prefix(about:blank) {

   * {
       background: black !important;
   }

}

and https://support.mozilla.org/en-US/questions/1106886 but both did not work. Dark mode extension works after loading a page but not before loading page in new tab.

I tried adding style to userChrome.css @-moz-document url-prefix(about:blank) { * { background: black !important; } } and https://support.mozilla.org/en-US/questions/1106886 but both did not work. Dark mode extension works after loading a page but not before loading page in new tab.

All Replies (1)

more options

I found a solution by chance. I'm using Linux so I changed GTK theme to Arc-Dark this changed pre-loading screen color. I think other themes with dark mode work too.

Modified by Taku