Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

ابحث في الدعم

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

YouTube has green vertical strip in all screens. How to fix it?

  • 4 ردود
  • 4 have this problem
  • 1 view
  • آخر ردّ كتبه Happy112

more options

YouTube video's all have a green stripe about 1-2 inches wide from top of screen to bottom of screen, both in regular size screen and full screen. There is also a green line where the progress bar appears. This happens also to video's on news sites, PBS, etc. Any video that uses Flash player is affected. It does not happen in Microsoft Edge, nor does it happen with Silverlight video player (NetFlix) when using Firefox.

I've tried the suggested solutions including video accelerator selections, updating Flash Player, refreshing Firefox, etc. I've also searched the web for a solution, but haven't even found anyone else with this problem.

Any assistance will be appreciated, Thank you. Mike

YouTube video's all have a green stripe about 1-2 inches wide from top of screen to bottom of screen, both in regular size screen and full screen. There is also a green line where the progress bar appears. This happens also to video's on news sites, PBS, etc. Any video that uses Flash player is affected. It does not happen in Microsoft Edge, nor does it happen with Silverlight video player (NetFlix) when using Firefox. I've tried the suggested solutions including video accelerator selections, updating Flash Player, refreshing Firefox, etc. I've also searched the web for a solution, but haven't even found anyone else with this problem. Any assistance will be appreciated, Thank you. Mike
Attached screenshots

الحل المُختار

Hi,

In case the above doesn't do the trick, would you give this a try (if you haven't already) :

Type in the address bar about:config (press Enter) (promise to be careful, if asked)

Type in the search bar and look for the preference :

media.wmf.dxva.d3d11.enabled

And set its value to false

Then close and restart Firefox in order for the change to take effect.

Any good  ?

Read this answer in context 👍 1

All Replies (4)

more options

Start Firefox in Safe Mode {web link} by holding down the <Shift> (Mac=Options) key, and then starting Firefox.

A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there?

more options

الحل المُختار

Hi,

In case the above doesn't do the trick, would you give this a try (if you haven't already) :

Type in the address bar about:config (press Enter) (promise to be careful, if asked)

Type in the search bar and look for the preference :

media.wmf.dxva.d3d11.enabled

And set its value to false

Then close and restart Firefox in order for the change to take effect.

Any good  ?

more options

Thank you very much. The solution using "media.wmf.dxva.d3d11.enabled" and changing to false seems to have worked.

Thanks again.

more options

Mixologistmike said

Thank you very much. The solution using "media.wmf.dxva.d3d11.enabled" and changing to false seems to have worked. Thanks again.

My pleasure - I'm glad you got things back to normal again  !