Comment 57 for bug 1181666

On my side (Ubuntu 18.04) keyboard is working and click looks like misses window position\passes to other window.
I have very easy way to check if bug is reproduced or not: after login start firefox and check cursor over address string, if it's default cursor and do not change over time - bug is reproduced, clicks missed address string. If I press alt-tab (switches to firefox itself) then cursor changes and clicks become working. If I start other application after this bug can mess up everything and navigation can be done mainly only by keyboard. If I start other application first and then firefox, bag may not reproduce.
This issue showed up right after switching to HIDPI monitor with 2560x1440 resolution.