Who else was on the pages your sessions visited, and which site pulled them in. A tracker handed the same identifier from every session makes two separated accounts one person to anyone counting.

What this extension did, kept on disk so the answer is still here tomorrow. No cookie values, no storage values, no query strings and no request bodies are ever written down.

Every feature, in the fewest words that are still true. Open a chapter to read it, or take the whole thing full width in a tab.