Privacy Extension That Doesn't Collect Data Itself

A privacy tool shouldn't become a tracker itself. Patrick Bushe's Cookie Auto-Reject has no account and no analytics: all it saves is a count of banners rejected and the last few sites, stored in Chrome on your computer, and you can clear the list from its window. It does need permission to read the pages you visit, since that's how it finds the reject button, so check that any privacy extension explains why it needs the access it asks for.