A Chrome extension that removes all Wikipedia site banners (featuring Jimmy Wales, editors, founders or otherwise) from all Wikimedia sites.
This Chrome extension folds the site banner on Wikipedia, and all other Wikimedia sites (Wikimedia, Wiktionary, WikiQuote, WikiBooks, WikiSource, WikiNews, Wikiversity, WikiSpecies, MediaWiki, Wikimedia Commons, et c). When a site banner is removed, a little page icon with a crossed-over Jim Wales shows up at the far right of the page's address field, which, if clicked, toggles the banner back on (and off), for the current page. This extension is licensed under the Creative Commons Attribution ShareAlike 3.0 Unported License, as is the picture of Jimbo featured in its icon and screen shots. Full source code and revision history is available on Github, at https://github.com/johan/Banner-free-Wikipedia