A bookmarklet that always finds its way to all of my browser toolbars is [Alisdair McDiarmid’s Kill sticky headers bookmarklet] (https://alisdair.mcdiarmid.org/kill-sticky-headers/). For web sites that have header or footer elements that obscure part of what I’m trying to read, clicking this bookmarklet instantly clears the page display. And if you ever need those elements back — for a menu item, say — then just refresh the page.
Kill Sticky bookmarklet
Michael E Brown
@brownstudy