Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.2a1pre) Gecko/20090225 Minefield/3.2a1pre With the patch on bug 399030 drop downs are drawn as NSPopupButtonCell on OS X now. When such instances are getting up-scaled the given text overlaps the drop down buttons. See the attached testcase.

This is hard. There's no way to scale the right border width proportionally to the button's height. We could stretch the dropdown only vertically, so that the dropdown button doesn't change its width, but I'm not sure if that will look better...

I just realized that in the specific case of https://addons.mozilla.org/fa/firefox/, it would actually be enough to mirror dropdowns in RTL mode - i.e. the dropdown equivalent of bug 477590.

(In reply to comment #2) > I just realized that in the specific case of > https://addons.mozilla.org/fa/firefox/, it would actually be enough to mirror > dropdowns in RTL mode - i.e. the dropdown equivalent of bug 477590. CC'ing Frederic for the AMO part...

Frederic can't do much here; it's a Gecko bug.

I know, just to let him know about this behavior on trunk.

Hi, I tested the attached test case on Mac Os 10.10 with FF Nightly 49.0a1 and FF 46 least release and I encounter a strange behaviour. The drop down appears to have a very big size also the text "overlap" is out of border. Please tell me if this is the actual result from description or should I file a new bug? Note: I added an attachment with the issue.