I've tested it the same pages with Safari and it works ok.
*** Bug 20411 has been marked as a duplicate of this bug. ***
does this happen with all videos from this page? or one particular video?
it regressed between r35755 and r35773.
To my untrained eye, I suspect:
but as I say, it's an untrained eye.
I don't have privileges to update the title and priority to reflect that it's a regression, and when it regressed.
Created attachment 22877 [details]
Patch to ignore setVisible when state is not changing.
Committed revision 35840.