As planned, Mozilla has released Firefox 3 Beta 3.
Before rushing to try it keep in mind it is intended mainly for developers and enthusiasts who don’t mind making a backup to minimize data loss risk and living with some bugs for the pleasure of living on the edge and being called an early adopter.
You may also want to know about some current known issues that may affect you. The new Yahoo! Mail interface and Windows Live Mail not working due to some Firefox and server bugs seem to be the most relevant right now. You can optionally go back to Yahoo! Mail Classic and Hotmail while bugs get squeezed.