Why doesn't console.table work in Firefox?

Question

Why doesn't console.table (or certain other console methods) work in Firefox, or return an error?

Answer 1

Firefox's built-in Web Console, ignores unknown console calls rather than throw an exception. So while a normal call, e.g.

window.table()

or any unknown method of a normal object, you get something like:

[20:29:35.381] TypeError: window.table is not a function

However:

console.table({foo: 'bar'})

just returns undefined without doing anything, even though:

typeof console.table

returns:

"undefined"