Yet another attempt at getting rid of "position: fixed" toolbars

unfix.user.js

// ==UserScript==
// @name     Unfix all toolbars!
// @version  1
// @grant    none
// ==/UserScript==

function unfix(el) {
  if (["fixed", "sticky"].indexOf(window.getComputedStyle(el).position) >= 0) {
    if (el.offsetWidth >= document.documentElement.clientWidth) {
      console.log("Unfix element:", el);
      el.style.setProperty('position', 'static', 'important');
    }
  }
};

(function() {
  // Unfix all nodes.
  window.addEventListener("load", function(event) {
		Array.forEach(document.querySelectorAll("*"), unfix);
  });
  
  // Keep track of new nodes. [TOO SLOW! Some sites mutate elements every time you scroll :(]
  /*var observer = new MutationObserver(function(mutations, observer) {
    Array.forEach(mutations, function(mutation) {
      unfix(mutation.target)
    });
  });
  observer.observe(document.body, {
    childList: true,
    subtree: true,
  	attributes: true,
    //attributeFilter: ['class', 'style'],
  });*/
})();