Firefox userChrome.css window focus selector -

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is there css selector can use in userchrome.css change text color of firefox when whole browser window loses focus?

i've tried:

window:focus element { color: #aaa; }    /* nothing */ window:active element { color: #aaa; }   /* when something's being clicked */ window:hover element { color: #aaa; }    /* when cursor on window */ window[focus] element { color: #aaa; }   /* wishful thinking--doesn't work */ window[active="true"] element { color: #aaa; }   /* documented work... */

or stuck using javascript? if so, there userchrome.js can put script in?

solved!

per https://developer.mozilla.org/en-us/docs/web/css/:-moz-window-inactive, functionality has been changed.

now can use:

element:-moz-window-inactive { color: #aaa; }

and:

element:not(-moz-window-inactive) { color: #aaa; }

to change css styles depending on if firefox window focused.


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