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.

ఇంకా తెలుసుకోండి

Firefox will only play YouTube videos up to 720, how to fix?

  • 2 ప్రత్యుత్తరాలు
  • 10 ఈ సమస్యలు కలిగి ఉన్నాయి
  • 1 వీక్షణ
  • చివరి సమాధానమిచ్చినది cor-el

more options

This afternoon I watched an old video of mine on YouTube. Afterwards, YouTube now only gives the option of 360 or 720p playback. Internet Explorer will play the same videos at 4K, and I was able to watch 1080 up to 2160p before watching this old video, how do I fix Firefox?

http://youtu.be/Je0sQwVynzI There's the newest video, with a 4k playback option, I don't want to post the old video that caused the glitch but it's the first video in my channel.

Please help!

This afternoon I watched an old video of mine on YouTube. Afterwards, YouTube now only gives the option of 360 or 720p playback. Internet Explorer will play the same videos at 4K, and I was able to watch 1080 up to 2160p before watching this old video, how do I fix Firefox? http://youtu.be/Je0sQwVynzI There's the newest video, with a 4k playback option, I don't want to post the old video that caused the glitch but it's the first video in my channel. Please help!

ప్రత్యుత్తరాలన్నీ (2)

more options

After going into about:config I did 2 things:

media.mediasource.enabled set to True

then added

Right-click and select New > Boolean Name preference media.mediasource.ignore_codecs Set value to True

A ton of technical stuff just from playing an old video! Is there a simpler to fix this without hard setting things in the configuration?

And now I cannot replay youtube videos! It will pause if I try to go back. Considering a video will auto play so I will select the highest quality then scrub back to start this happens usually every time so this fix is worthless.

న lmnopotts చే మార్చబడినది

more options

This extension allows to switch between the Flash player and the HTML5 media player on the YouTube website. YouTube Flash Video Player: