Rated 2 out of 5 stars

At first i gave it 5 stars but after spending time with it i realized that this addon was closing firefox unexpectedly in several sites that didn't have a specific blocked word in the 30 first characters.When i was disabling it, the sites were working perfectly.This was happening of course when i was having one tab opened.So this addon was closing the tab and because it was one tab opened it was closing the whole browser. I repeat that the sites that i was visiting didn't have a restricted word.