Note: After saving, you have to bypass your browser's cache to see the changes. Internet Explorer: press Ctrl-F5, Mozilla: hold down Shift while clicking Reload (or press Ctrl-Shift-R), Opera/Konqueror: press F5, Safari: hold down Shift + Alt while clicking Reload, Chrome: hold down Shift while clicking Reload.
/* Don't load directly but as gadget. Has dependencies */if(6===mw.config.get('wgNamespaceNumber')){mw.commonsExtraTabs.doInjectGroup([{target:mw.util.wikiScript()+'?'+$.param({title:'Special:FilePath',file:mw.config.get('wgTitle'),width:'800'}),label:'thumbPurge',portlet:'p-tb',id:'t-thumbpurge'}]);}