I have done what is recommended to solve the slowness of my computer that began since the automatic installation of the new Mozilla Firefox browser and even updated my drivers. I have removed and reinstalled the browser severally and that did not solve the problem. When I remove the Mozilla browser from my computer, the other browsers, Microsoft Edge and Google Chrome, work excellently. The logical conclusion, therefore, is that the problem is the Mozilla browser. My dilemma is that I love the Mozilla browser and have been loyal to it for several decodes. But if the problem persists, I would have no other choice but to give it up.