This Firefox add-on lets you compare search engines with ease.
One of the most helpful features of SearchAll is that it allows you to simultaneously search up to three different search engines and compare their performance in the status bar. This is excellent for users who need to do quick research across multiple platforms. Additionally, the extension can handle comparisons between two or three search engines at a time, depending on your needs.
There is an extensive list of default search engines that you can choose from, including Amazon and eBay. But, interestingly, you can input your own site's URL in editable drop-down lists. The extension's general-purpose data extracting algorithm allows you to extract items from unknown site's results pages, which is a great time-saving feature. However, the pattern mining algorithm can be a bit slow on ordinary machines and doesn't work for 100% of the sites over the web, but the developers are working to improve this issue.
Right now, SearchAll supports three views: the original view, the formatted view, and the mapping view. The extension tests the links in the formatted view automatically using HTTP HEAD requests and marks good, bad, and slow links. The mapping view is particularly useful if you need to see how different search terms perform on different search engines visually. This feature is quite helpful for users who want a more comprehensive understanding of how search engines work.
Overall, I think the SearchAll extension is a fantastic tool for anyone who wants to search multiple search engines at the same time. It is cross-platform and works on Mac OS X, Windows and Linux. The installation process is quick and easy, and it integrates seamlessly with Firefox, which is a big plus. The only requirement is that you have Firefox 2.0 or later installed on your machine. I'd highly recommend SearchAll to anyone who needs to streamline their web searches and make their work more efficient.
Version 0.4.30: N/A