Sometimes sites have code that triggers in debug mode and keeps it in a loop. Any tips there, or is the "break and modify source to remove it" the only way?
javascript:(function(){var style=document.createElement('style');style.type='text/css';style.innerHTML='* { user-select: all !important; }';document.head.appendChild(style);document.body.oncontextmenu=function(){return true;};})();
(Untested)
Superfluous. I don’t understand why people often do this on stylesheets or scripts (type="text/javascript"), because it has never at any time been necessary or useful.