BlockerX, without a doubt, is the best P0rn blocker of all time.

BlockerX doesn't even give you a chance to Relapse, it filters all Not Safe For Work content from your browser. so it's so hard to even reach these websites. and even if you find them, you would probably get blocked because of the keywords blocking feature. and one of the best things about BlockerX is it's fourm. you can talking with other people and share your stories or questions and motivate each other. I've tried a bunch of other Blockers but none seems to work as good as BlockerX