Firefox and enjoy HD video on YouTube

Developed for plug-in called Greasemonkey scripts for Firefox, Mozilla browser to open high-quality YouTube videos automatically changes.

Greasemonkey script to use the first plugin to be installed. Then the “YouTube HQ + 720p” script can be added at www.userscripts.org. The only high-quality YouTube video after the move is not play, you can scale the HD-Ready resolution 720p well.

Moreover, for slow computers or Internet connections can be made in low quality video playback.