it is asking me to install plugin of firefox 6.0.0_07
Do you get this issue when you to try to open a forms session from EBS ?
Have you installed Java on the client machine, and what is the OS you are working on?
Try from Internet Explorer and let us know if it works out.
OEL (linux) is not a supported OS to work as a client. Anyhow there are workarounds that you can do in order to by pass the issue and load forms on OEL.
Answer to your question is delivered on thread:
As mention here linux is not certified. I suggest please review:
Lİnux-cleint (ebs) certification
EBS Client running on Linux