There's a greasemonkey script that replaces the video with a local player/html5/video plugin: http://isebaro.com/viewtube/?ln=en http://isebaro.com/viewtube/?ln

There's a greasemonkey script that replaces the video with a local player/html5/video plugin: http://isebaro.com/viewtube/?ln=en http://isebaro.com/viewtube/?ln=en I use it with the mpv option and mozplugger. It seems to work quite well.