Firefox can handle gopher links directly (at least currently -- see bug 388195). However, if you are referring to the OverbiteFF extension, I can endorse it wholeheartedly. (The reason: I wrote it.) OverbiteFF patches some gaps in Fx's gopher support, so it's all good.

Anyway, I have created a by-request folder on the gopher server, so grab it out of

gopher://gopher.floodgap.com/1/archive/by-request/classic-mac

It's a very handy tool.