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Why are the 720p and higher resolution options no longer available for Youtube videos?

Posted

Hello:

I recently changed to Mac OS X Version 10.9.5 and came with it Firefox 33.1.1. Now the 720p and higher resolution options are no longer available for Youtube videos. What should I do to access those options?

(Meanwhile, the Safari Version 7.1.7 (9537.85.16.12) on the machine has all the options.)

I'd appreciate it if you'd kindly tell what I should do.

Thank you,

R.

Hello: I recently changed to Mac OS X Version 10.9.5 and came with it Firefox 33.1.1. Now the 720p and higher resolution options are no longer available for Youtube videos. What should I do to access those options? (Meanwhile, the Safari Version 7.1.7 (9537.85.16.12) on the machine has all the options.) I'd appreciate it if you'd kindly tell what I should do. Thank you, R.

Additional System Details

Installed Plug-ins

  • Adobe® Acrobat® Plug-in for Web Browsers, Version 15.008.20082
  • Provides information about the default web browser
  • Office Live Update v1.0
  • Microsoft Office for Mac SharePoint Browser Plug-in

Application

  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:33.0) Gecko/20100101 Firefox/33.0

More Information

philipp
  • Top 25 Contributor
  • Moderator
5330 solutions 23532 answers

hi, please update firefox to the latest version (39.0.3 at the moment, firefox 40 is due to be released next week) as they contain support for "media source extensions" which is a prerequisite on youtube to play-back html5 videos in higher resolutions.

Update Firefox to the latest release

hi, please update firefox to the latest version (39.0.3 at the moment, firefox 40 is due to be released next week) as they contain support for "media source extensions" which is a prerequisite on youtube to play-back html5 videos in higher resolutions. [[Update Firefox to the latest version]]