New Firefox Quantum 57.0.2: Some Youtube Videos Have Green Lines?

Hey guys,

I just upgraded to the latest version of Firefox Quantum and I've noticed that some videos on Youtube have green lines in them. The audio plays fine, but not the video.

I don't have this problem in Google Chrome.

I just upgraded my Nvidia driver that was released in November 2017.

I'm running Windows 10 Pro.

Thanks!

I upgraded Firefox to 57.0.2 yesterday, too.
I just tried 3 different videos on YouTube and they all looked fine and sounded fine.

NiceAndShy said:

Hey guys,

I just upgraded to the latest version of Firefox Quantum and I've noticed that some videos on Youtube have green lines in them. The audio plays fine, but not the video.

I don't have this problem in Google Chrome.

I just upgraded my Nvidia driver that was released in November 2017.

I'm running Windows 10 Pro.

Thanks!

Maybe: Green bar on YouTube and other videos | Firefox Support Forum | Mozilla Support

Try running CCleaners registry scan and also run a full virus scan on your pc.
Also go into C:\Program Files\Nvider Corporation\Installer2 and delete any older drivers, other than the most recent one from the Nvidia November Drivers.
I'm pretty sure they're on the December drivers now, too.
This pc has a AMD card, but my other pc has two GTX 760's in it.
The current driver is 388.59 just released yesterday.
https://www.geforce.com/drivers

Not Myself said:

Maybe: Green bar on YouTube and other videos | Firefox Support Forum | Mozilla Support

I had it on one machine. This was the fix (although not the best thing I wanted to do)

You can try to disable hardware acceleration in Firefox.

• Options/Preferences -> General: Performance
  remove checkmark: [ ] "Use recommended performance settings"
  "Use hardware acceleration when available"

NiceAndShy said:

Wow, I really appreciate your replies!

I'm about to install the most recent Nvidia driver for my PC.

EDIT:

By doing the following is it possible that I'll be changing the content of the videos I watch on websites?

No. No content will be altered. All that disabling hardware acceleration does is make Firefox use it's own software to power everything. Also note it says "Use hardware acceleration when available". It's not always in use, and you shouldn't notice a difference.

One note maybe check if it happens with no extensions enabled. It may be worth a try. If it doesn't happen then enable extensions one by one to see if/which one causes it.

Here's two links for bug tracking for this. It shows as fixed, but since you're still having the issue maybe add your info to see if someone can help you.

1352016 thick green line on the right and/or bottom of the HTML5 video

1352016 - thick green line on the right and/or bottom of the HTML5 video

Thanks so much!

Since upgrading to the most recent version of Windows 10 Pro one thing I've noticed is that Task Manager displays how much my graphics card is being used.

Firefox seems to use my graphics card almost all the time.

Why is this?

NiceAndShy said:

Since upgrading to the most recent version of Windows 10 Pro one thing I've noticed is that Task Manager displays how much my graphics card is being used.

Firefox seems to use my graphics card almost all the time.

Why is this?

All the time, or just during videos? I only have this thread open in one tab, and my GPU is zero.