Navigator Enhancer for Mac

From Marc Mennigmann:

Navigator Enhancer is an application that works with Netscape Navigator 3.x and under by adding a handy new feature. When Netscape designed its first-generation browsers, it included a layer of directory buttons pointing to services that varied depending on where and how you obtained the browser. The only problem is that Netscape didn't give users a way to edit the title and destinations of those buttons, and most of the time the buttons remained hidden and useless. Navigator Enhancer allows you to edit this information, so you can substitute your favorite Web pages and services for the ones supplied by Netscape. A word of caution, though: make sure you've exited your browser and made a backup copy of your browser before using this application.