Shows a very noticeable banner when you are on Facebook but outside of Cirque du Twerque. Tested on Chrome and Firefox.
Production: Download from the chrome web store: https://chrome.google.com/webstore/detail/not-cdt/ebaificpkjbcfcpndjpmjggkiaadccoc
Development: Clone this repo and use 'Load unpacked extension' on the chrome://extensions page.
Production: Click here, hit 'Allow' if prompted to allow Github to install extensions, and then hit 'Install'.
Development: Clone this repo, go to about:debugging#addons, check 'Enable add-on debugging', press 'Load temporary add-on', navigate to where you cloned the repo and double-click manifest.json (or any other file) to load the add-on.
Pretty much all relevant code is in inject.js. Pull requests are welcomed.
really not the greatest code