Install Firefox Preview 5.0 and type "Test" in url bar. On https://www.google.com/search?q=Test&ie=utf-8&oe=utf-8&client=firefox-b-m scroll to end and tap on "More results".
More search results should be loaded.
Nothing happens.
I have tried to reproduce the issue but the page results load for me. It may be possible that some extensions are interfering. Have you tried disabling extensions and clearing the browser's cache and cookies?
Thank you. Clearing browsing History and website data solved the problem.