Shows a popup after a while... I mean honestly! Why this is a recommended extension is beyond me.

This thing works wonders, if you want a good ad blocker, this is the one

This adblocker is so far the best one for me.

Love this AdBlocker. So far it is the only one that I allows me to exclude a site and actually see the enable/disable not buried behind a websites adblocker removal request. Well done..!!

Excellent

Block all over! N°1 BloKING ads

I LIKE IT BECAUSE IT BLOCK ADS WHICH OTHER ADS BLOCKER CAN'T BLOCK

Best ad blocker.

good

Works quite well and definitely enhances browsing experience

It blocks ads just fine, but it also makes Outlook webmail display a blank page when I try to create or reply to an email. (This is the webmail interface to our company's installation of Outlook--no idea whether this also affects Outlook365.)

The problem (with some ad-ons, not this one explicitly) is described here: https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems. I disabled and re-enabled AdAvoid several times to verify that it was indeed this add-on, and not another one, nor was it hardware acceleration.