Assegnate 3 su 5 stelle

Like it the features, but its true taht it takes a lot of CPU on my system! Please improve!

Questa recensione riguarda una versione precedente (1.0.4.1) del componente aggiuntivo. 

I have never seen this even on old CPUs. Uncheck enable interest filter in options > general > enable interest filter as this is really the only thing that uses much CPU at all.

If you have Firebug installed, see also https://www.mozdev.org/bugs/show_bug.cgi?id=17877
although I don't know if Firebug still has this bug.