If you like to save your passwords, you probably know that its a pain to save Basic Authentication passwords in Firefox. Basic Authentication comes up in a new window saying "Enter username and password for ..." and looks like this:
There is no 'save this password' button. If you access this site every day, and close Firefox between sessions, you'd have to type your username/password every time. No longer!
It is possible, though seemingly undocumented, to save the username/password inside the HTTP URL (this long has been done with FTP). For example:
http://user:password@layer2.org
Just put this into a bookmark, and you have an easy way to access your password-protected site. Of course, if the password is actually sensitive, you might think twice about saving it in plain text as a bookmark!
The only annoying thing that happens using this method is that you'll see this prompt the first time you try to log in (for any given Firefox session):
Just press OK. While not perfect, this is a heck of a lot easier to deal with than entering the password each and every time.