SearchLinks add-on for Firefox makes it easier to surf search results by adding buttons for each search result in the last performed search.
For further convenience, a term highlighter is also available for the last performed search - the full search or each term individually.
A search history menu is also available, to easily go back to previously performed searches. The history menu can be easily cleared and exists for the current session only, to avoid any privacy violations.
Currently supported search engines: Google, Bing, Yahoo!, YouTube.