Rated 5 out of 5 stars
If someone combines this with SmartSearch, I'd use it until year 2022.
What I mean is put multiple variables, preferably with customized parsing and reference symbols into FF quick searches and keep selection + hovered string scan and context menu shortcuts for the searches.
Now if we add to that the ability of "add to search bar" to scan all the fields of a search form to the adding of a quicksearch with "Add a keyword for this search" and have a "use POST method" check box - I'd use it until 2222.
Still a nice addon just like that though:)