Solutions: First disable or remove Gnash in the Abrowser or Midori.
FilmesOnlineGratis[0]: you can right-click on the "play" button and "copy
link location", after paste the URL in the Totem (Video Player) with Ctrl+L,
VLC (Ctrl+N), MPlayer, etc.
Dramago works perfectly with UnPlug[1] in Abrowser with MP4 format(I saw some
episodes). You can try Flash Video Downloader[2] also.
Chessbase uses some Vimeo videos (MP4 format) and I saw with Gnash disabled.
Chat Portugal uses Flash. You can choose another website, probably this
website doesn't works with free software. Flash is proprietary:
[0]
http://www.filmesonlinegratis.net/assistir-de-repente-pai-legendado-online.html
[1] https://trisquel.info/en/browser/addons/unplug
[2] https://addons.mozilla.org/firefox/addon/flash-video-downloader
