Easter Egg – Play Unicorn game in Firefox Nightly build

Mozilla Firefox browser has a few Easter eggs planted in it. These are hidden features or surprises embedded in the browser that can be readily accessed via “about:” page. The page opens the door to settings changes, UI customization, performance info, and more. The most useful is the URL about: config, which displays preferences and settings that can be inspected and changed. If you are running the latest Firefox Quantum 57 version, you can enjoy a new secret Easter Egg.

The hidden secret Easter Egg revealed in the Nightly build of Mozilla Firefox web browser is a “Pong” game featuring a flying and colorful unicorn. The unicorn, if you remember made its first appearance long time back in another Easter Egg.

Play Unicorn game in Firefox Nightly build

First things first. Open the Customize window of Firefox. For this, right-click the hamburger icon visible in the top-right corner of the browser window and select “Customize” option.

Having done this, you’ll need to move all buttons present in the toolbar customize window to the main toolbar.

Play Unicorn game in Firefox Nightly build

In short, you need to empty the customize page by dragging-n-dropping all existing items to Firefox toolbar.

When finished, the hidden secret Easter Egg will make the appearance. You’ll notice a new “Unicorn” box/button added next to the “Density” drop-down box.

Click on the “Unicorn” button, and it’ll launch the secret “Pong” game. It is reminiscent of the classic “Jardinains” game.

You can play the game by simply moving the upper “Flexible Space” item with the help of left/right arrow keys. The lower “Flexible Space” item is controlled by Firefox.

Once you are done with it, you can restore all default toolbar buttons and remove extra buttons by again going to “Customize” page and clicking on “Restore Defaults” button.

That’s it!

Let us know if the trick works for you and share your experience with us in the comments section below.

TIP: You can also play the built-in T-Rex Dinosaur game in Chrome browser when offline.

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The author Hemant Saxena is a post-graduate in bio-technology and has an immense interest in following Windows, Office and other technology developments. Quiet by nature, he is an avid Lacrosse player. Creating a System Restore Point first before installing a new software, and being careful about any third-party offers while installing freeware is recommended.