Fun Firefox Tricks You Might Not Know About:

If you’re bored at work and want to humor your co-workers, try out some of these Firefox about commands and other fun tricks they might not be aware of.

Many software programs have so-called “Easter Eggs,” – which are hidden jokes, games, or images you might not know about. It’s nothing new; there’s plenty of Easter Eggs in movies, video games, and music albums too. Here’s a list of some fun ones you can find in Mozilla’s Firefox web browser.

Book of Mozilla

Want an excerpt from the great testament book of Mozilla? Just type: about:mozilla into the search box, and you’ll get the following message, and it just might change your life.

Book of Mozilla

Message from Robots

If you’re a fan of robots, just type: about:robots in the Search bar to get this message. But remember…they have a plan.


Don’t Void the Firefox Warranty

If you’ve ever done some “under the hood” customizing of Firefox you’ve seen this message. Type: about:config and you get the joke about voiding the free browser’s warranty.

Void Warranty

About About Commands

All of the tricks above use the about: command in the search field in Firefox. For a list of other pages that can be more helpful, type: about:about to get a list.

Firefox about about

Run Firefox Inside Firefox

I’m not really sure what the point of this trick is, and it doesn’t use the about: command, but it’s interesting nonetheless. Launch Firefox and type:


If you want to be really nuts, run it multiple times and see how many instances of Firefox you can have running in Firefox.

Firefox in Firefox

Make Google Do a Barrel Roll

This is more of a Google trick, but it only works in Firefox and Google Chrome (of course). Go to Google and type: do a barrel roll and watch the Google results page flip around.

Do you know of any cool Easter Eggs or other hidden tricks that can be accessed in Firefox? Let us know in the comments.



  1. Steve Krause

    February 26, 2013 at 7:17 am

    I knew them all except……. about:about

    How did I not try that one earlier? Great list Brian. Will see if any of the readers know any more.

    The one I’ve used in the past was about:crashes. That’s a handy one.

  2. Samir

    March 8, 2013 at 7:46 am

    Go to Google and type: tilt

  3. Brian Burgess

    March 8, 2013 at 5:49 pm

    @Samir: HA! That is a great one! I never knew about that one. Thanks for the heads up!

  4. JC

    September 1, 2022 at 12:23 pm

    What are the Google one’s. I know there’s a way to see content?like to find your online full file and root list?

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