Rated 3 out of 5 stars
A good, simple add-on that does what it's name implies: why waste ink when printing a web page, on all these unnecessary ADS (ugh!).
The only problem I'm now having is, since I updated to FF8, PWA no longer is compatible.
For that reason, I'm giving it 3 stars - 1 for it's incompatibility (I rarely find any add-on that's so 'perfect' I give it a 5 Star).
Oleg, please: UPDATE.