# Block Cloudflare MITM Attack **Pull requests are welcome!** The purpose of this browser add-on is to block Cloudflare sites. The TLS protocol promises end-to-end encryption between the client and an authenticated, identified endpoint server. The browser’s lock icon is a UI widget which makes this promise to the user. Cloudflare is a mass-decryption chokepoint, which intercepts and decrypts the Web requests made by billions of people to millions of websites. - Prior discussion: [Tor Browser Bug #24351: Block Global Active Adversary Cloudflare](https://trac.torproject.org/projects/tor/ticket/24351) - Imported from [block_cloudflare_mitm_attack-1.0.10.1-an+fx.xpi](https://addons.mozilla.org/en-US/firefox/addon/block-cloudflare-mitm-attack/), by an anonymous cypherpunk. “Cyperpunks write code.” Cheers! - [Original announcement](https://trac.torproject.org/projects/tor/ticket/24351#comment:25) - Thanks to [Debian Bug #831835](https://bugs.debian.org/831835) for some inspiration.