Here's a way for persistent installs of firefox:
Download jre-6u16-linux-i586.bin (linux (self-extracting file))
http://java.com/en/download/linux_manual.jsp?locale=en&host=java.com:80extract after giving exec permissions:
sudo chmod +x jre-6u16-linux-i586.bin
./jre-6u16-linux-i586.bin
Create link to /firefox/plugins:
cd /firefox/plugins
sudo ln -s /jre1.6.0_16/plugin/i386/ns7/libjavaplugin_oji.so .
For Firefox, you can also add /Tools/ java console
cd /firefox/extensions
sudo unzip /jre1.6.0_16/lib/deploy/ffjcext.zip
Note: /java/jre1.6.0_16, with man folder deleted, runs
103.9M
edit: don't think it's working properly......