Closed Bug 722261 Opened 8 years ago Closed 7 years ago
We repaint large sections of web pages when the video controls are visible and the video is playing
STR: 1) Enable the nglayout.debug.paint_flashing setting in about:config 2) Go to http://www.mozilla.org/projects/firefox/prerelease.html 3) Click play on the video Expected results: 4) When the video controls are visible, only the visible controls should be flashing. Actual results: 4) The containing block element div#main.with-menu flashes whenever the video is playing and the controls are visible.
It becomes 'worse' when the volume slider is up.
I think this is basically a dupe of bug 511163. In this case the video is inside a float so we suffer from "the float invalidation" bug (bug 546362), and that makes us invalidate more in this case.
Fixed by DLBI.
You need to log in before you can comment on or make changes to this bug.