Changes

* Read about the upcoming plans for requiring Private Browsing compliance in Firefox extensions [http://ehsanakhgari.org/blog/2010-02-17/private-browsing-support-firefox-extensions here]. Also, we need volunteers to create a tool for checking the compatibility of extensions with Private Browsing mode; more info [http://ehsanakhgari.org/blog/2010-02-18/help-build-tool-checking-private-browsing-compatility-extensions here], and tool spec [https://wiki.mozilla.org/Private_Browsing_Add-on_Compatibility_Checker here].