The best of the best! You dont even need to pay to be on the safe side! Thank you sooo much to the malwarebytes team. it blocks everything! even if it gives maybe like 1 in a 200 false positives. It doesn't happen often i can barely remember the extension blocking a good site in the recent days or weeks. Better be safe than sorry right? this one is completely worth it combined with defender and the occasional free mwb trial. get this extension, it's just 1 click away and saves you in many ways while browsing! I would give 6 stars if i could :)