Created attachment 8903149 [details] 2shWB4ujQl2k-PCB-lv6rA.png User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:55.0) Gecko/20100101 Firefox/55.0 Build ID: 20170814072924 Steps to reproduce: Good day, Mozilla team! Two weeks ago I updated my Firefox (32bit) to 55.0.2 (oh, why?!) and - Refresh button became broken (too big). https://prnt.sc/g9oa0k https://prnt.sc/g9o446 I use Win 7 x64 with screen Hi-DPI scale factor of 151% https://prnt.sc/g9obiw (not default 100%, nor semi-default 150% or 200%) Firefox 54.0.1 was fine. As you see, other default buttons (and stop button too) is OK, but not the refresh button. Fix this please. Actual results: Refresh button in address bar is too big. (HiDPI) Expected results: The button must have the same normal size as all of other buttons.
Does this happen on a clean Firefox profile as well?
It's strange, but this bug disappeared when I updated to 55.0.3. But this bug "was stable" while my FF was 55.0.2. Clean profile? Not exact, I have some extensions enabled, but not too many ones. Well, may be this report still can help FF team in future. Thanks for paying attention! Good luck!
OK, while we don't know what caused it, marking as incomplete. We can reopen if this resurfaces / we have more details about what causes it.