XF 1.5 Why does this pop up everytime?

[surfsup]

I get this pop up only on my forum when using Safari (note I never use safari but when i do this always pops up no matter what when accessing my forum)

This does not pop up on any other forums i visit like xenforo.com or macrumors and others.

 

[Jake Bunce]

Safari likes to store information using the OS X Keychain. If you remove the entry from the Keychain on your Mac then it shouldn't prompt you anymore:

Applications -> Utilities -> Keychain Access