Researchers from German security firm Recurity Labs have released a JavaScript implementation of the OpenPGP specification that allows users to encrypt and decrypt webmail messages. Called GPG4Browsers, the tool functions as an extension for Google Chrome and now is capable of working with Gmail. The current release is limited by the fact that it cannot generate private keys, although the menu for doing this is present, so the feature will most likely be implemented in the future. The extension can decrypt messages signed with GnuPG (GNU Privacy Guard) but only if data compression isn’t used.”]