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.

Search Support

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

Cannot view any videos. Get a green screen instead.

  • 1 nzaghachinzaghachi
  • 1 nwere nsogbu anwere nsogbu a
  • 1 view
  • Nzaghachi ikpeazụ nke FredMcD

more options

I've tried several sites (YouTube, Facebook, PlannedParrothood) and all of a sudden they have all stopped working in playing videos. I get a bright green screen throughout the entire video, but can hear the audio and can also see the thumbnail of the progress bar playing. I'm using version 31.0 on Windows 7Pro. Videos worked properly until today.

I've tried several sites (YouTube, Facebook, PlannedParrothood) and all of a sudden they have all stopped working in playing videos. I get a bright green screen throughout the entire video, but can hear the audio and can also see the thumbnail of the progress bar playing. I'm using version 31.0 on Windows 7Pro. Videos worked properly until today.

All Replies (1)

more options

Many site issues can be caused by corrupt cookies or cache.

  • Clear the Cache

and

  • Remove Cookies Warning ! ! This will log you out of sites you're logged in to.

Type about:preferences in the address bar and press enter.

  • Cache; Select Privacy. Under History, select Firefox will Use Custom Settings. Press the button on the right side called Show Cookies. Use the search bar to look for the site. Note; There may be more than one entry. Remove All of them.
  • Cookies; Select Advanced > Network. Across from Cached Web Content, Press Clear Now.

If there is still a problem, Start Firefox in Safe Mode {web link} While you are in safe mode;

Type about:preferences in the address bar and press enter

Select Advanced > General. Look for and turn off Use Hardware Acceleration.

Poke around safe web sites. Are there any problems?

Then restart.