Modern browsers can add all sorts of functionality beyond their stock feature set through the use of extensions. From security enhancements, to productivity-centric tools, utilitarian plug-ins for all sorts of niches and more. But while there are a few well-known players, sifting through your browser's catalog of extensions can get overwhelming and time consuming.
Today we want to ask: what are your must have browser extensions? Any hidden gems out there that don't get quite the attention they deserve?