There is a bug in your code in this file:
SyntaxError: invalid increment operand
The offending code seems to be caused by your minifier? (possibly)
The code is:
It should read:
As I believe you are meaning the first plus to APPEND and the next two pluses to increment the n variable.
This broke my plugin in firefox since it meant my functions didn't get defined - I have advised my client to remove your plugin until you fix it.