For Google Chrome: On your computer, open Chrome. Flash videos on any website, even youtube, endlessly buffer and never play.
The glitches or stopping of videos cause a disturbance. Reload the youtube page to see if the problem was solved.
Flash video not playing in chrome If Flash is installed (a black window appears), but not playing the video, the following may help: Right click in the Flash Player, then use the following options: Enable hardware acceleration Local storage: allow Mic and camera: deny In Chrome, go to your Plugins (chrome://plugins/) and make sure Flash is enabled there.