Subj : dynamic additions to Function.prototype not reflected when in chrome?
To   : netscape.public.mozilla.jseng
From : Fritz Schneider
Date : Thu Sep 15 2005 08:00 pm

Firefox 1.5b1, try the following mystifying test case in js in an extension:

Function.prototype.foo = "bar";
function f(){}
alert(f.foo);

Gives undefined. Verified on a clean install. Bug, right? I think this one:

https://bugzilla.mozilla.org/show_bug.cgi?id=300079

.