Extremely useful addon for me: not only can I get info – and inspiration – on webfonts in use. It also shows me the CSS in use, sizing, contrast ratio. THE addon to take along when stranded on a lonely island ;-)

It is objective, is light and just works.

Finally Found it again :)

Would be nicer if the font css content got copied after click. so I can google the font name..

Simple yet elegant. Great tool for a front end guy like myself.

It rarely works, Most of the time the top option is "-apple-system" and the rest are CSS style values.