And they are the same? If so, then I don't understand what you're asking for...
No, they are not the same. The previous post listed everything available in the Firefox add-on. If you were to examine the online version, you would see:
ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789`~!@#$%^&*()_-+={}|[]\:";<>?,./
ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789
0123456789abcdef
0123456789
ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
`~!@#$%^&*()_-+={}|[]\:"'<>?,./
The difference between the two is that the add-on has a 'random' choice, and the on-line version has the alphabet in upper and lower case with digits.
The alphanumeric set needs to be added to the add-on.