To use the about commands just type the commands into the Firefox address bar.
Just typing "about:" will show general and version information. It's kind of short for about firefox :)
It's a firefox easter egg. Try it.
Shows a blank page.
Shows Firefox configuration.
Shows information about Firefox cache. You can even browse the files in the cache
Shows the list of contributors who helped develop Firefox.
Displays a list of plugins installed on Firefox
Information about the particular build of Firefox.
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