gistfile1.txt

// ==UserScript==
// @name          Kill hotkeys on Mediawiki
// @namespace     miyagawa
// @description   Unbinds Mediawiki hotkeys that conflicts with Emacs key-binding on Safari
// @creator       Tatsuhiko Miyagawa
// @include       https://example.com/wiki/*
// ==/UserScript==

window.addEventListener("load", function(e) {
   for (var id in window.ta) {
       var n = document.getElementById(id);
       if (n) {
           var a = null;
           if (ta[id][0].length > 0) {
               if (n.nodeName.toLowerCase() == "a") {
                   a = n;
               } else {
                   a = n.childNodes[0];
               }
               if (a) {
                   a.accessKey = undefined;
               }
           }
       }
   }
}, false);