AutoAuth is an extension for Mozilla-based Web browsers that automatically submits HTTP authentication dialogs when you’ve chosen to have the browser save your login information. (If you’ve already told the browser what your username and password are, and you’ve told it to remember that username and password, why not just have it automatically submit it instead of asking you each time?)
The extension is pretty simple right now (very simple, actually), but I think it has the potential to become a very useful base for enhancing the HTTP authentication process in the browser. For example, a future feature might add the ability to specify login credentials for wildcard subdomains, so that once you’ve entered a password for foo.com, you don’t have to manually re-enter that password for a.foo.com, b.foo.com, c.foo.com, if they all take the same username/password pair. Just tell AutoAuth the username and password to use for *.foo.com, and let it do the work.
You can install AutoAuth from the AutoAuth homepage. (AutoAuth is compatible with Firefox 1.5 and 2, Netscape Navigator 9, and Flock.)