plug-in only performs one simple job, but it is pretty clever and totally free of charge. To put things simply, GooglePreview displays a thumbnail preview of your Web searches next to their descriptions. The program works with Yahoo as well as Google, but doesn't support any other search engines. This plug-in lacks extensive customization options, but you can limit the maximum number of returned images up to 100.
In our tests, GooglePreview was completely accurate and didn't slow down our searches, though a tool for magnifying the thumbnail without actually having to visit the site might be a good improvement for future releases. GooglePreview isn't essential, but it won't cost you a dime and certainly comes in handy.