The Yellowpipe RightLynx tool is an addition to the right-click menu for Firefox, allowing you to preview the page you are on with a Lynx Viewer.
With just one click, and without living the page (RightLynx opens in a new, small window) you can see what a page will look like when viewed with Lynx , a text-mode web browser. It is also presumably, how search engines see your site. In addition to that, it can help determine if web pages are accessible to the vision impaired.
