The only AES text encryption that works (consistently) well across multiple platfroms! Rated 5 out of 5 stars
it works very well In several web-browsers; Firefox, Thunderbird, SeaMonkey, Opera, and Google Chrome!
Also, has an Lock The Text Online Edition at: http://lockthetext.sourceforge.net/online.html
Use the "Lock The Text Online" page to lock or unlock your text, any time, any where.
Also, you can find a "Lock The Text Offline Edition" at http://lockthetext.sourceforge.net/
It is a simple AES text encryption and easy to use Firefox add-on!