Mozilla has released Beta 3 of Firefox 3. The next milestone will be the Beta 4. Don’t have any information at this time on a release date for this milestone or the final Firefox 3. Here is a look back at the Firefox 3 Milestones: Fx 3.0a1/Gecko 1.9a1 – December 8th, 2006 Fx 3.0a2/Gecko 1.9a2 – February 7th, 2007 Fx 3.0a3/Gecko 1.9a3 – March 23rd, 2007 Fx 3.0a4/Gecko 1.9a4 – April 27th, 2007 Fx 3.0a5/Gecko 1.9a5 – June 6th, 2007 Fx 3.0a6/Gecko 1.9a6 – July 2nd, 2007 Fx 3.0a7/Gecko 1.9a7 – August 3rd, 2007 Fx 3.0a8/Gecko 1.9a8 – September 20th,…