Recently I installed Firefox on my parents' phones (uBlock Origin too) in order to make them surf the web more securely as we've had a few cases in the past with malware. (Google Chrome, the advertisement company's browser, does not like ad blockers. Wonder why?)

All they care about it is it openning Google.com and apparently they don't like Firefox's home screen. There are only options for "the last tab", "home screen" and "home screen after few hours of inactivity" but no option to go to a specific web address. In this case, google.com.

So... how do?