I'm a big fan of using the "@" symbol in the address bar in Firefox. I'd like to suggest making additional functionality available when using that search:
1. the ability to delete one or more entries found as a result a search. The attached image shows I have several tabs open to walmart.com It would be convenient for me to be able to close all those tabs at once via that search result.
2. the ability to group together within the browser (and maybe even bookmark as a group) two or more entries found as a result a search.