Rated 5 out of 5 stars
Sorry for "review spamming". I messed it up (but Mozilla doesn't let me "edit").
So what I want to say is: It really seems buggy and ugly at first sight BUT after having a very closer look and changing some initial values this addon is becoming beauty- and useful.
And please ignore feature request I just found the option.
Ok, I go and have some fresh air now ;)