Since the update to Firefox Quantum, I'm having trouble with several websites where various features no longer work. For instance, clicking on a button to make an update seems to work, but doesn't actually make the change. Another example is the Lands End website (landsend.com), where parts of the page have completely disappeared, including all product reviews. Everything on these websites works fine in Microsoft Edge, so it's clearly something new in Firefox. I would like to go back to the old Firefox. I don't see any advantage at all to this new version!