Show HN: Chrome-like "tab to search" in Firefox URL bar (github.com)

Long story short: I was thinking of switching for Chrome to Firefox, but there was a feature I was missing: tab to search in any site. For example, type "stackoverflow.com" in the URL bar, type a query and you're searching in SO right away. In Firefox it doesn't exist, so I made it.

Here it's in the FIrefox addon gallery:https://addons.mozilla.org/en-US/firefox/addon/tabtosearch