http://literasee.io is a simple Gist viewer for Markdown and HTML/JavaScript examples.
To install the Chrome extension, visit the Chrome Web Store and click Add to Chrome.
To install the Firefox extension, visit the Mozilla Add-ons. Then click Add to Firefox.
A Safari extension is no longer supported because Apple requires a $99 per year fee to obtain a developer certificate. Please don’t use Safari.
Note: All credit for this extension goes to Mike Bostock as it is a direct fork of https://github.com/mbostock/bl.ocks.org with some simple find and replace.