Why are Youtube videos not playing properly on chrome?

I've had Ubuntu for quite some time now and youtube and everything has worked spectacular! But all of a sudden recently youtube videos have stopped working right. The sound works perfectly, but the video is SUPER slow and doesn't show correctly, as in the video doesn't move, just goes from picture to picture.

I've looked everywhere for help and have not found a reason why it's doing this. Youtube works fine on Firefox but on Chrome it does this. Chrome's my main browser, and we use it in school ALL the time.

I've tried the flash player settings and unchecking the hardware acceleration box, but that didn't even work. Any thoughts or solutions?

I have Ubuntu 12.04 LTS, OS 64-bit on a chromebook.

You need to:

• Type chrome://plugins in the address bar of Chrome

• Click DETAILS (on the top-right)

• Disable pepperflash plugin /opt/google/chrome/PepperFlash/libpepflashplayer.so

This is the flash plugin developed by google for it's chrome browser. That's why Firefox doesn't have this problem.

I had a problem playing some youtube videos and was because I had the VLC plugin in conflict with the flash player plugin. To disable the VLC plugin:

1. Type chrome://plugins in the address bar of chrome.
2. Click "Details" (on the top-right).
3. Search for "vlc multimedia plugin" and disable it.
4. Reload the youtube page to see if the problem was solved.