How To: Reveal Hidden Passwords in Firefox

Today I wanted to replace my router and realized that I don’t remember my ISP’s username and password. Like in any router’s web interface, the ISP’s password is saved behind asterisks (or dots in case of Windows Vista/7) but there’s an easy way to reveal this password in Firefox:

Just paste the following code in your browsers address bar when you’re on the page that displays the username and password of your connection and press Enter.

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