Example Ubuntu 9.04 ( I guess, you have some 9.04
repo's included, else no firefox-3.5 AFAIK.)
ls -l /usr/bin/firefox*
/usr/bin/firefox -> firefox-3.0
/usr/bin/firefox-3.0 -> ../lib/firefox-3.0.9/firefox.sh
/usr/bin/firefox-3.5 -> ../lib/firefox-3.5/firefox.sh
And the launchers are still pointing to a command,
'firefox' . Suggest : edit the launcher and or
"Menu entry", Exec=firefox to firefox-3.5
or change the links in /usr/bin/ .
.....
I think, the reason for the issue is, that firefox-3.0.xx
is still installed. The result of the command ..
dpkg --get-selections | grep firefox
Code:
firefox install
firefox-3.0 install
firefox-3.0-branding install
firefox-3.5 install
firefox-3.5-branding install