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I'm using Ubuntu 14.04 and Mozilla Firefox browser.

When I go to YouTube its default is 720p (HD) but when I try to change it the check mark goes to the quality I pick but it doesn't change. It is still on 720p:

How can I select a lower quality?

Tim
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John
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1 Answers1

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Check these two threads. I quoted the relevant sections for your convenience:

https://forums.opensuse.org/showthread.php/509254-Can-t-change-YouTube-video-resolution-in-Firefox

Hello,

Either set media.mediasource.enabled and media.mediasource.webm.enabled to true in Firefox's about:config or install flash-player.

Regards,

Antoine

https://support.mozilla.org/en-US/questions/974108

Clear the cache and cookies only from websites that cause problems.

"Clear the Cache":

Firefox/Tools > Options > Advanced > Network > Cached Web Content: "Clear Now" "Remove Cookies" from sites causing problems:

Firefox/Tools > Options > Privacy > Cookies: "Show Cookies"

Another method from the same thread

Dear, Everyone who cares. I've had the same solution on and off for weeks, and I have just now found my solution. Try LOGGING OFF. Something in the account settings was doing it for me, but Logging off of my youtube / gmail account fixed this problem.

Spread the word.

biocyberman
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