We have got a report about overlapping Help button label
<https://bugzilla.mozilla.org/show_bug.cgi?id=1358100> in the Czech
localization on Mac OS X (it does not happen in Windows nor Linux
version). I have tried to find the responsible element using devtools,
but I am bit confused, as the element width seems correct, but the
border is rendered inside the element. I also haven't found any value
that would specify this button width in the element CSS, so not sure
what value to look for in the files, if the dimensions are "localizable".
Francesco, is this our localization bug, or something in the Firefox code?