Registering with a Web site often means making a deal with the devil. You give the site information like your name, email address, and potentially more private data such as your mailing address, phone number, and age. But what happens with that information? You may get inundated by spam, your name may be sold to mailing lists and advertisers, and possibly worse. But for many Web sites, if you don't register, you can't log in and use the site.
This add-on solves the problem. Go to a Web site, right-click in the user name or password field, and select BugMeNot. A valid user name and password will then be entered into the form. You can then use the site without having to register. The add-on works in concert with the BugMeNot Web site, which has many user names and passwords for multiple sites.
Note: This link takes you to the vendor's site, where you can download the latest version of the software.