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

What is the modern way to style the Dev Tools area through userChrome.css

more options

What is the modern way to style the Dev Tools area through userChrome.css? It appears that whatever techniques were used in 2018, don't apply today because I tried them all.

How should the CSS syntax look for styling the inspector, debugger, etc... (i.e. change the font size and font family types).

I'm on FireFox 97.0

Many thanks!

What is the modern way to style the Dev Tools area through userChrome.css? It appears that whatever techniques were used in 2018, don't apply today because I tried them all. How should the CSS syntax look for styling the inspector, debugger, etc... (i.e. change the font size and font family types). I'm on FireFox 97.0 Many thanks!

Valgt løsning

It likely doesn't work because you need to place the code in userContent.css.

What CSS code did you try ?

Les dette svaret i sammenhengen 👍 0

All Replies (4)

more options

Valgt løsning

It likely doesn't work because you need to place the code in userContent.css.

What CSS code did you try ?

more options

Before you answered, I originally tried the following...

@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /* set default namespace to XUL */

@-moz-document url-prefix(chrome: //devtools/content/) {

 .devtools-monospace {
   font-family:arial !important;
   font-size: 20px !important;
   line-height:3;
 }

}

Any recommendations?

Endret av kensley.lewis

more options

This code in userContent.css should work. Do not add the @namespace line.

@-moz-document url-prefix(chrome://devtools/content/) {
 .devtools-monospace {
   font-family:arial !important;
   font-size: 20px !important;
   line-height:3;
 }
}

more options

Absolutely fantastic!

Thanks

Endret av kensley.lewis