My second favorite Ad Blocker. The updates really hurt this add-on. It really used to be so much better. Less Memory consumation and more efficient. They even deleted its older versions and stopped updating it. Serious issues it has is if your memory or the Browswer crashes it deletes all your hard work filters, subscriptions, and hits. Support team is completely nonexistence and appalling. Ive emailed them several times and not once had I even had an automatic reply. Its great because its so simple but its also lacking heavily. Besides that. Its never given my browser issues. Its lack of options is also to be desired but I recommend it anyway as it does save a lot of memory and block a lot of ads all the while being simple.