Search Result Previews is a Firefox add-on designed to provide users with visual thumbnails next to search results on various search engines. This tool enhances the browsing experience by allowing users to quickly assess the content of a page before clicking. The PRO version includes additional features such as PageRank values, which indicate the popularity and credibility of a website, helping users make informed decisions about links. The free version offers basic PageRank information through a tooltip icon badge, which can be enabled in the settings.

Supported search engines include Google, DuckDuckGo, Bing, and many others, making this add-on versatile for different browsing preferences. Users can analyze links using the right-click option to compute the PageRank and preview the domain, as well as check for security issues with VirusTotal. This tool not only improves productivity but also enhances privacy and security while browsing.