Note: I'm the author of a similar tool. About 2 years ago I wrote Taniger which is a tool that does the same thing but without having to set a preset password

Note: I'm the author of a similar tool. About 2 years ago I wrote Taniger which is a tool that does the same thing but without having to set a preset password for all chats (each message has its own encryption key). What I found out during these 2 years is that facebook changes it's chat HTML from time to time making the encryption "not work" as it cannot detect the encrypted text. I believe this is what happened with crypter - but I can't be 100% sure as I don't have time today to check if that's the case (I tried installing it but I got an error message when I tried to set its password). P.S. The Taniger site is currently offline as I'm re-writing it to support PGP encryption, but you can see a demo at https://www.youtube.com/watch?v=cU57xQcAcd0 https://www.youtube.com/watch?v=cU57xQcAcd0 and get the code at https://github.com/sadreck/taniger https://github.com/sadreck/taniger