[Can you explain why Firefox cannot launch Second Life ?]

Thank you !

[Can you explain why Firefox cannot launch Second Life ?]

Thank you for responding to my question.  I will follow your instructions.  Thanks.

[Can you explain why Firefox cannot launch Second Life ?]

I have joined, registered, and downloaded Second Life, but when I try to launch Second Life, I get this message:

"Firefox doesn't know how to open this address, because the protocol (secondlife) isn't associated with any program."

Please,tell me how I can resolve this.  Thank you !