Firefox users have been experiencing some useability problems with creating the new wiseclerk borrower signatures with the prosper lender stats.
Here is the workaround:
Step 1: Enter lender name on the signature creation page.
Step 2: Wait for up to a minute. IGNORE the error message Firefox displays.
Step 3: Copy this code into your forum signature:
Step 4: Replace screenname with your prosper screen name
You are done. Sorry for the inconvience. Any help by experienced Firefox programmers is appreciated