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

Add background image to about:blank

  • No replies
  • 2 have this problem
  • 6 views
more options

I'm on Firefox 57 and did change the background color of my about:blank page by creating a chrome folder inside my profile and added a userContent.css file to that folder containing:

@-moz-document url-prefix(about:blank) {*{background-color:#000000;}}

Now I'm trying to add a background image as well, but whatever I tried didn't work. The image I'm trying to add is also in the chrome folder. Hopefully someone here can point me to the correct css code to add an image as well as the background color.

I'm on Firefox 57 and did change the background color of my about:blank page by creating a chrome folder inside my profile and added a userContent.css file to that folder containing: @-moz-document url-prefix(about:blank) {*{background-color:#000000;}} Now I'm trying to add a background image as well, but whatever I tried didn't work. The image I'm trying to add is also in the chrome folder. Hopefully someone here can point me to the correct css code to add an image as well as the background color.