Still having problem with Firefox 2.0?
Create a folder call download.
Download it here
http://www.mozilla.com/en-US/firefox/
Where you download it to, just
cd to that directory just like in windows. You use
ls instead of dir for Linux
When your in the directory just do tar -xvf firefox[press tab to finish the file name]
the tab feature is useful for long file name so you don't make any typo.
It should extract a folder call firefox in the directory where you download it to, just cd to firefox directory and type firefox &
Installing flash player 9 to Firefox.
Go here and download "Installer for Linux (GZ, 2.48 MB)"
http://labs.adobe.com/downloads/flashplayer9.html
Remember it's a tar file so you do the same thing to extract it, and when your done just copy the file libflashplayer.so to the firefox/plugins directory
Then go here
http://www.adobe.com/products/flash/about/ to check your latest flash version. That's it, getting Firefox and flash is that easy on Linux. Every distro does it differently with their package manager but there's many ways.