The TenFourFox QuickTime Enabler allows you to play selected HTML5 video and audio files and YouTube videos in QuickTime, outside of the browser. You can even play H.264 content with the QTE. This gives you a safer alternative to Flash for many videos.
* Quick Time Enabler – http://adf.ly/hyVkN
If you especially need YouTube support, you may also benefit from installing the MacTubesEnabler.
* MacTubes Enabler – http://adf.ly/hyWIT
MAC POWERPC 
when i click the top link it will take me to adfly like it should and then it takes me to go6gle where i should download it then i get a error 404.
Here you are:
https://sourceforge.net/projects/tenfourfox/files/addons/
Sourseforge won’t work, though.