ReFont is a Firefox extension designed to enhance the web browsing experience by allowing users to change fonts on any website. The program enables users to allocate specific fonts to designated websites or URLs while maintaining a default font across all pages. This flexibility caters to personal preferences in aesthetics and readability, making it a valuable tool for those who frequently navigate the web.

The ReFont manager simplifies the process of adding new fonts, supporting a wide variety of font types. However, it's important to note that due to WebExtensions restrictions, users cannot alter the fonts on system pages or the Mozilla add-ons site. Overall, ReFont stands out as a user-friendly solution for customizing web typography.