This is a security and stability release, and you can help by verifying
bugs, and by running the Litmus test cases under the FFTs or the BFTs.
Check out the following page for more details:
http://wiki.mozilla.org/Mozilla_QA_Community:1.5.0.8_Community_Test_Day
Please join us in #testday on irc.mozilla.org, from 7am - 5pm PDT.
-juanb