Using this since I can remember. But noticed another issue and still searching how to disable the video cache at all until I start to play the video and to limit it to 2-5 seconds (or 1 MB) during playing, though no chance so far.
And just another issue since few months: youtube page auto-reloads/replaces itself since few seconds after opening (even if the tab is not active). The title gets replaced from the original language into English auto-translation (EN is default for browser), but I'd like to see video titles in the original language.
