convert .tar.bz2 to .deb (installing firefox beta 4)

[hasoanaa]

Can anybody help me ?!!
i need to install firefox beta 4 , and since its in testing period i cant find it on my firefox updates till it realese
so i download firefox beta 4 with extension .tar.bz2 which i cannot treat
if there are a way to convert it to .deb which i can install
(i search google 4 that problem and i see solutions by using alien and some other teqniche
i just want an easy way i can do
thanks in advance ( i use ubuntu 10

[renkinjutsu]

When you download the tarball, you shouldn't have to install anything. There is already a binary inside the tarball that you can execute to launch firefox

[hasoanaa]

When you download the tarball, you shouldn't have to install anything. There is already a binary inside the tarball that you can execute to launch firefox

okay i click on extract here and folder named firefox created
there are many files in that folder but no one can excute ... thanks

[renkinjutsu]

get into a terminal and cd into the firefox folder

something like:
cd firefox
./firefox

[crichard]

You can follow the steps from here to install Firefox and Thunderbird in Ubuntu (http://surferzworld.com/2010/01/installing-firefox-thunderbird-ubuntu/)