Does not work :( Rated 1 out of 5 stars

My system is:

Distributor ID: Ubuntu
Description: Ubuntu Raring Ringtail (development branch)
Release: 13.04Codename: raring

The extension did not override anything not matter which option I chose. Too bad, I really needed it for my work.
I event disabled all other extensions I had to test it, still to no avail.