FireStylus extension for Firebug

FireStylus is a Firebug extension that makes Firebug display the Stylus filename and line numbers of the Stylus-generated CSS styles rather than those of the generated CSS.


First, you need to install Firebug and the FireStylus extension

Then simply enable the Stylus’s firebug option when generating CSS.

Command line usage:

$ stylus -f <path>
$ stylus --firebug <path>

Javascript usage:

var stylus = require('stylus');

  .set('firebug', true)
  .render(function(err, css){
	// logic

Connect / Express:

var stylus = require('stylus');

var server = connect.createServer(
        src: __dirname
      , dest: __dirname + '/public'
      , firebug: true
  , connect.static(__dirname + '/public')


FireStylus should work with Firefox versions 3.0 and up, and with Firebug versions 1.4 and up.

  • Firefox 3+ (also works with version 5)
  • Firebug 1.4+


FireStylus and FireSass are incompatible. You cannot enable them simultaneously.

FireStylus (like FireSass) only works in the HTML pane of Firebug. The others (such as the CSS pane) won’t work due to Firebug limitations.