Hi, in order to watch youtube movies:
first, try iceweasel without flash-plugin (disable or even un-install the plugin) and after removing any cookies from youtube; (maybe you feel more motivated to do that after reading this article titled "Flash – Low-hanging fruit for attackers | Business Security Insider by F-Secure" https://business.f-secure.com/have-you-disabled-flash-yet/ ;-) second, with the command-line program youtube-dl (package of the same name) movies can be downloaded from youtube and played by a movie-player, e.g., vlc. Regards, jvp.
