I'm using 64bit Debian Jessie. Yesterday I pulled an update of
apt-get update and
apt-get upgrade. For my surprise now its no longer called like that and instead it has the name
Firefox ESR. The name is not the issue here (obviously). Right after that I started the freshly updated web browser and found that:
Videos played in a Flash player stutter - even when fully loaded the video's sound and image stutter throughout the whole thing. I've looked for a solution but nothing worked. Some suggested that it will get fixed by disabling hardware acceleration (well, it didn't), other suggested that the problem comes from the protective mode. The second I found quite interesting and looked more into it. I managed to find
about:configwhich supposedly did that. Nothing changed (I also restarted the browser in case the change requires that). This issue is not only happening with video content but also with sound-only content such as streaming radio and/or music.
Controls of the YouTube's HTML5 player response really slowly - I actually checked HTML5 video playback on several other streaming web sites and while it was not that bad there were still some noticeable delay in the response. With controls I mean right click on the player for its context menu, pausing/unpausing, regulating the volume, opening the quality menu, going in and out of fullscreen mode etc. The video and sound itself works without any issues.
Any ideas how to fix these issues?
EDIT: I have also refreshed Firefox but it didn't fix the problems mentioned above.
EDIT 2: Creating a new profile also didn't change a thing.