Super Mario World Retro

Old school Super Mario Bros. backgrounds (including the dungeon at the bottom) darkened so it doesn't distract too much.

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Super Mario World Retro is available to install from Firefox Browser Add-ons and for download from this page. It has 47 active users The latest version is 2.0, and it was published 2 years ago.

All available versions

You can find the current and older versions of Super Mario World Retro here. You can download the archived versions or inspect their source codes.

As a free user, you can only download the latest version.

How to install Super Mario World Retro from an XPI file

1. Simply drag-and-drop the XPI into Firefox to install the add-on.

How to install Super Mario World Retro from a ZIP file

1. Download the Super Mario World Retro ZIP file
2. In Firefox browser, go to about:addons to open Add-ons Manager
3. Click on , then select Install Add-on From File
4. Select the Super Mario World Retro ZIP file from step 1. Super Mario World Retro is now installed on your browser.