MailCloak for Firefox is the new, Easy-to-use, Safe, Secure, Private and Portable email encryption add-on for Mozilla Firefox.
Encrypts
MailCloak for Firefox uses GnuPG Email encryption to encrypt:
- Attachments
- Email Messages
- Files
Easy to use
We built MailCloak to be the first easy to use email encryption program in history!
- Unlike other GPG add-ons, MailCloak’s One Click install includes GnuPG
- Automatic Key Exchange
- Cryptobot – Free Key Exchange Training Bot
Works with:
- Gmail
- Yahoo! Mail
- Windows Live mail & Hotmail
Easy to share
- Easy Invitations
- Easy Installations
- Easy Downloads
Mail Services:
MailCloak for Firefox encrypts email, attachments and drafts on the following webmails:



These webmails includes the following domain names: gmail.com, live.com, hotmail.com and yahoo.com.
Once you install MailCloak and turn on encryption in the MailCloak Menu, MailCloak will append invitations & your public key to your outgoing messages. When your contacts clicks on your invitation, they will be directed to the MailCloak's download page where they can choose which version of MailCloak to install.
Alternatively, they can use any of the encryption programs listed at the bottom.
Cross Platform Compatibility
MailCloak uses the GNU Privacy Guard (A.K.A. GPG or GnuPG) to encrypt and decrypt email. GPG is an open source encryption program based on the OpenPGP encryption standard.
All OpenPGP compliant email encryption is cross compatible, so MailCloak users can exchange encrypted email with people using the following systems:
Mac:
- FireGPG
- Enigmail
- PGP Desktop
- MacGPG
Linux:
- FireGPG
- Enigmail
- Mutt
- KGpg
This is just a sampling of the GnuPG compatible programs out there. For more information see this list of GnuPG front-ends.
MailCloak for Firefox
–Easy-to-use Email Encryption. Watch our easy video tour!
- MailCloak for Mail Firefox
- Easy to use
- GnuPG