Firefox close tab button, how to change its color?

[LeandrodaFL]

The Firefox theme for Mac, at least the current theme, has a grey close button tab. I would like to change it to some blue or some "glass" gray, to add some "life" to my firefox experience.

How can I teak it?

 

[wrldwzrd89]

The Firefox theme for Mac, at least the current theme, has a grey close button tab. I would like to change it to some blue or some "glass" gray, to add some "life" to my firefox experience.

How can I teak it?

The officially supported way to do this is to make either a theme or Persona for Firefox that has your modifications. However, I'm sure there's also a quick and dirty hack you can perform to achieve the same thing - don't expect this method to survive Firefox upgrades though. The idea is to find the default theme, open up the right component of it in a text editor, make edits, save changes, relaunch Firefox.