One week after the release of the first release candidate, Mozilla published Firefox 3.6 RC2 on their website.
Firefox 3.6 Release Candidate 2 is the latest development milestone of the next version of the Firefox web browser. As a release candidate, this is considered to be stable and safe to use for daily web browsing, and represents the features and content that will be in the final product release. At this time most Add-ons have been tested by their authors to ensure that they are compatible with this release. If you experience problems with Add-on compatibility, please install the Add-on Compatibility Reporter - your favorite Add-on author will appreciate it!