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

Natao arisiva ity resaka mitohy ity. Mametraha fanontaniana azafady raha mila fanampiana.

Firefox crashing when playing video on Youtube (HTML5)

  • 2 valiny
  • 1 manana an'ity olana ity
  • 2 views
  • Valiny farany nomen'i cor-el

more options

Latest version of Firefox for Mac OS X 10.11 crashes when playing Youtube video.

Symptoms: - Blocky Artifacts on the screen - Hard Lock up - Slow performance

Does not occur under Safari, or Chromium. Does not occur under old version of Firefox (v. 37).

Specs:

Mac Mini 2012 i7 processor 16 GB Memory 1TB HDD OSX 10.11 El Capitan

Latest version of Firefox for Mac OS X 10.11 crashes when playing Youtube video. Symptoms: - Blocky Artifacts on the screen - Hard Lock up - Slow performance Does not occur under Safari, or Chromium. Does not occur under old version of Firefox (v. 37). Specs: Mac Mini 2012 i7 processor 16 GB Memory 1TB HDD OSX 10.11 El Capitan

All Replies (2)

more options

Hello,

Can you please go through these help articles, some of the solution out ther may help you out.

Fix common audio and video issues

Please reply back for any help.

more options

In the current release Firefox might be using the HTML5 media player instead of a Flash based player in older Firefox versions.

You can try to set media.apple.mp4.enabled to false on the about:config page to see if that has effect. You can open the about:config page via the location/address bar. You can accept the warning and click "I'll be careful" to continue.