PwdHash (by Stanford) generates passwords resistant to theft and phishing by hashing a combination of the sites address and your password. This extension adds a sidebar (shortcut Ctrl+F8) and alternatively a toolbar button (shortcut F8).
What is PwdHash Sidebar?
PwdHash Sidebar is a Firefox add-on that generates passwords resistant to theft and phishing. It combines the site's address and your password to create secure hashes. Access it easily through a sidebar or toolbar button.
This version of PwdHash is both a web extension for common browsers as well a simple web page. You can install it as an add-on, use the web page as a bookmark or just save it locally.
Make sure the button is added to your toolbar, click it or press F8 to open the toolbar menu. The address is prefilled (but can be modified). After pressing return on the password field, the hash is copied to your clipboard. Alternatively you can press Ctrl+F8 to open the sidebar.
PwdHash Sidebar may not be safe to use and it requires some risky permissions. Exercise caution when installing this add-on. Review carefully before installing.
PwdHash Sidebar has earned a fairly good reputation and likely can be trusted.