The Search Site extension for the Firefox web browser provides two options to access the site search parameter. The first is by marking text on a website, right-clicking and selecting the “search site for selection” option in the context menu. This will open a new tab in Firefox that displays the results of a site: parameter search in the default search engine. Changing the default search engine has a direct effect on this function. The extension is therefor not limited to Google (the default search engine) but can be used in conjunction with any other search engine supporting the site parameter.

The second option is to click on the site search button that has been added to the search toolbar. Entering a search term into the search toolbar and clicking on the site search icon will perform the site: search instead of a normal web search for the term.