The definitive AdBlocker. First extension I install on any browser.
Default Settings work just fine, and has plenty of customization for advanced users.

I'm a big fan of this content blocker overall, it is very powerful! However, it is actually TOO powerful, and does not turn off when I power it off–it continues to block ads. If this extension could GENUINELY turn on and off, then it would be 5 stars!

Love it.

Single-handedly makes internet tolerable.