At last, it has been released; actually, it is the renamed RC3 and you may read its many new features from Mozilla website. I've just finished building and configuring something in FF2 on linux platform, saying that I patch and build it to use icu for Thai word breaking and create some graphic works :). I modified an about graphic and about dialog, including credit page with the Japanese Firefox mascot named Foxkeh. It's so adorable so that I have replaced the old "globe" mozilla logo as well as Firefox icon with it. Furthermore, this mascot is licensed under Creative Commons which makes "Foxkeh" can be used under Attribution and Non-commercial conditions. I hope that Mozilla will not sue me when I distribute my icu-thai patched build with Foxkeh logo.
However, savefile.com is down for some times, If somebody can find some hosts to upload, that would be highly appreciated.
Update: Savefile.com is back and I've just uploaded it here. Let's try and have fun! :D
Update2: Sorry for any inconvenience, Savefile.com sometimes down for maintenance but it's back now. Thankfully, there're people who mirrored this build of firefox on other servers so you may find it here and here. Thank Khun Noi and Khun wd.