That's https://bugzilla.mozilla.org/show_bug.cgi?id=454625 and the problem is th...

		bzbarsky on June 11, 2014 \| parent \| context \| favorite \| on: Firefox 30.0 That's https://bugzilla.mozilla.org/show_bug.cgi?id=454625 and the problem is that other browsers only sometimes allow changing line-height on them and some sites are depending on that (non-documented, not standardized) behavior...