The plan was for Firefox 4 Beta 8 to be released at the end of November. Here we are the 3rd of December and no Beta 8. The latest release post from Mozilla shows Beta 8 as ‘December’ with Beta 9 and 10 along with RC1 as ‘TBD’. However, it appears the next updates for Firefox 3.6 and 3.5 (which Mozilla still says updates would be provided through August 2010) are still on schedule for December 9th. Also looks like there is going to be a Thunderbird update coming out on December 9th as well.