MrNevermore said

I've trawled through these forums to look for a solution but none of them seem to work. When playing YouTube videos at 60fps, I'm dropping about a third of the frames. I've tried disabling hardware acceleration through Flash, prevented it from storing information on my computer and, as this is a fresh install of Firefox, there are no extensions that can be causing the problem. I've included screenshots from using YouTube on Firefox and on Internet Explorer. I'd love if anyone could help me solve this issue as I don't want to keep resorting to a slow, laggy browser just to watch videos.

I forgot to add the screenshots

hi, can you try updating your graphics driver? https://downloadcenter.intel.com/download/24973/Intel-HD-Graphics-Driver-for-Windows-7-8-8-1-64-bit

philipp said

hi, can you try updating your graphics driver? https://downloadcenter.intel.com/download/24973/Intel-HD-Graphics-Driver-for-Windows-7-8-8-1-64-bit

I did try this, but as I'm using a Dell laptop, it's considered an unverified update and wont let me install it through the standalone installer. I did try to bypass it and install it from the Device Manager, but it's saying my current version is the up-to-date one, (which I can tell it isn't seeing as it's 10.18.10.3621 and the one on the website is 15.33.36.64.4226).

Went to the Dell website to check for updated drivers and the latest one on there is 10.18.10.3621 as well, so as far as Dell are concerned, I'm all up to date.

Update: Managed to update my video drivers after some arsing about with the zip file and Device Manager.

Minor improvement but videos are still choppy and still dropping frames.

just for testing sake, can you try to replicate this behaviour when you launch firefox in safe mode once?

Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems

Infinitely worse lol! The video was pretty unwatchable and the stats on the dropped frames are being pretty kind.