As stated before, using the Libertine Tweak Tool available from the Open Store, allows you to set gui sizing and large scroll bars for apps in libertine containers, that make them much more usable mobile form factors. Also - installing the Scroll Anywhere extension and setting it for "Grab and Drag" behavior allows scrolling via touch for Firefox. Firefox unfortunately still will be much slower and less responsive than Morph is on UT.
Ha, I had the opposite last night. I was running a (music streaming) web app, closed the tab--and the web app kept running, now with no way to stop the music. Had to close the browser app and restart. 🙂