There are several ways to convert documents to the ePub format. One of my favorites is the using calibre, that has excellent command line tools than can automate the process.
But on the browser front, there’s nothing that I’m aware of. What I’d like to have was the option to “Save this page as ePub“! Sometimes I just want to save the webpage in a file for latter reader in my eBook reader. Already searched for something like this in Firefox extensions repository, but nothing came up. My ebook reader can read HTML files, but I’d really like them converted to ePub as this would allow cleaning of all junk information.
Also interesting would to use the Readability technology to then produce the epub. Does anyone know anything that can do this?