Add the following lines to /etc/apt/sources.list :
Then run apt-get update && apt-get install j2re1.4
If you are running Firefox 1.5 then you should check to see if you have your plugins in the right folder. In the firefox address bar type " about
: plugins (without the space between the : and the p). You should have all your plugins in the list. If not then you need to copy your plugins from /usr/lib/mozilla-firefox/plugins/ to /usr/lib/firefox/plugins/ .