complicated to set up - purchased license was not recognized so had to reinstall; cannot pin extension to firefox toolbar - it does not appear as option to add

Ist Gut

The only adblocker I trust.

how do I delete ad blocker

One star because of the super annoying popups that come up frequently.
And the addon doesn't remember the setting to not choose filters automatically.

That makes it unusable. Else 5 stars.

Horrible popups, sometimes several times a minute claiming that EasyList has been updated. These popups hold your computer from working. If you filter them in the filter menu, a couple of minutes and they activate themselves again and return.
Search for another better ad blocker!