Follow-up from bug 1025267: (In reply to Jared Wein [:jaws] (please needinfo? me) from comment #14) > (In reply to Boris Zbarsky [:bz] from comment #13) > > We may want a test that checks that these pseudos are in fact parseable in a > > chrome sheet; followup is ok for that test. > > This may already be covered by > http://hg.mozilla.org/mozilla-central/file/60b269fed8cf/browser/base/content/ > test/general/browser_parsable_css.js since the styles exist in a chrome > stylesheet and that test confirms that none of our front-end CSS contains > parsing errors. (In reply to :Gijs Kruitbosch from comment #16) > (In reply to Boris Zbarsky [:bz] from comment #15) > > Um... that test should really parse things as chrome, which is how they > > would actually get parsed. :( Ah, well.

Bug 1261239 is about bz's first suggestion above - to have a dedicated test that tests all supported pseudos (independent of actual use in Firefox style sheets, which I assume is what browser_parsable_css.js is about).

(In reply to Mats Palmgren (:mats) from comment #1) > Bug 1261239 is about bz's first suggestion above - to have a dedicated test > that tests > all supported pseudos (independent of actual use in Firefox style sheets, > which > I assume is what browser_parsable_css.js is about). Yes. As I noted in bug 1025267 comment 16, I think it should already be doing that. It would be worth checking...