This is premier in simplicity and function. It Just Works (tm). Love it.
It's rare, VERY rare when I come across a site that this does not work on. It is great for those of us that have lots of passwords, and accounts. There are many others, but none compare (well I can't really say that as I haven't tested them all - never had to!).
+1 - A+
No need add-on, just this :-) Super !