To aggressively speed up internet just block JavaScript. I use this extension which makes it easy and convenient: https://addons.mozilla.org/en-US/firefox/addo

To aggressively speed up internet just block JavaScript. I use this extension which makes it easy and convenient: https://addons.mozilla.org/en-US/firefox/addon/disable-javascript/ https://addons.mozilla.org/en-US/firefox/addon/disable-javas... Keep js off by default and just whitest websites.