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html not working on youtube

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  • के द्वारा अंतिम प्रतियुतर arejfour

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I've been using HTML to view YouTube videos for quite a while now with rarely an instance where it wouldn't work. As of today I was unable to view any YouTube videos. I keep getting I need Adobe Flash Player so, reluctantly, I enabled Flash and everything has been working except for the occasional instance that FP has stopped working. So I don't know if this a FP, FF, and/or YouTube problem. I checked the YouTube settings and HTML is enabled. So could someone please enlighten me as to what is going on. Also what is this Open H264 extension I just saw with FF 33 update? Thank you in advance for your comments.

I've been using HTML to view YouTube videos for quite a while now with rarely an instance where it wouldn't work. As of today I was unable to view any YouTube videos. I keep getting I need Adobe Flash Player so, reluctantly, I enabled Flash and everything has been working except for the occasional instance that FP has stopped working. So I don't know if this a FP, FF, and/or YouTube problem. I checked the YouTube settings and HTML is enabled. So could someone please enlighten me as to what is going on. Also what is this Open H264 extension I just saw with FF 33 update? Thank you in advance for your comments.

All Replies (3)

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Some added toolbar and anti-virus add-ons are known to cause Firefox issues. Disable All of them.

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<Enter> in the address bar.

  • Cookies; 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.
  • Cache; 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<Enter> in the address bar

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

Poke around safe web sites. Are there any problems?

Then restart.

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The current Firefox 33 release has support for canPlayType to make it possible to check if you can play a specific media format. If this check fails then the website can fallback to another player and in most cases this will be Flash based.

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Thanks for the replies. I'm still don't understand why the youtube videos no longer play in HTML. When I view the same video in Chrome it plays them in HTML. Something changed in FF 33. Being I said all this FP 15 crashed and I had to reinstall FP. I disabled video acceleration in both FP and FF with no effect. I'm in a position where I either have to deactivate FP or start using Chrome which doesn't have any problems. I've attached a snapshot of the youtube/html5 for review. Even when I change the default to HTML is still doesn't work. I started FF in safe mode and that didn't make any difference. So, at this point, I don't know if FF caused this problem or FP is causing this problem. I look forward to anyone's comments. Thanks