Search any site you're on by the simple click of a button. The search is done not only on the 1 page you are viewing at the time you click as [Ctrl]+[F] does but instead Google is used to "site search" within ALL pages of the site. Search websites the easy way!
How to customize: Right-click the 🔍 "search this site" button, in the menu that pops up, click on "Options". There you can: ● change the search engine that's used to search on domains from Google to Yahoo, Bing, or Yandex (a Russian search engine); ● set the button to directly open the search engine instead of a 🔍 popup; ● activate the feature to be able to search a domain from the context menu; ● activate the feature that lets you choose between subsites in the 🔍 popup.
Want the same functionality in Firefox? Install the "Site Searcher" add-on from https://addons.mozilla.org/addon/site-searcher/