This extension prevents Google, Yahoo and Yandex search pages from modifying search result links when you click them. This is useful when copying links but it also helps privacy by preventing the search engines from recording your clicks.
In other words, when I get google search results and right-click on them, instead of getting useless garbage, I get a link I can use in blog post or a footnote — especially handy for linking to .pdf files where the URL doesn’t show up in the program that pops up to display the document.
Most folks won’t need this extension. But those who do will love it.