As my User Account name says, I'm using a relativly expensive mobile data connection to browse, with limited fast internet quota. - Mozilla forgot to mention that this "RECOMMENDED" add-on wants money, and because it is "RECOMMENDED", that would "SATISFY OUT SECURITY AND PERFORMANCE STANDARDS", I didn't read the user recommendations first.
I have NOTHING against commerical software, but I want to know upfront!
There are free alternatives.