MediaWiki:Common.js

mw.loader.load( 'https://pro.fontawesome.com/releases/v5.3.1/js/all.js' );

// To change the site's favicon:
function change_favicon(img) {
    var favicon = document.querySelector('link[rel="shortcut icon"]');
    
    if (!favicon) {
        favicon = document.createElement('link');
        favicon.setAttribute('rel', 'shortcut icon');
        var head = document.querySelector('head');
        head.appendChild(favicon);
    }
    
    
    favicon.setAttribute('type', 'image/png');
    favicon.setAttribute('href', img);
}
change_favicon('/images/6/6b/Tsadra_Logo_Favicon_-_Jeremi.png');