It seems like a difficult problem, which no one knows how to solve, not even Firefox (?) The problem has existed for a while and has not been recognized and resolved by Fiorefox. Very simple and straightforward problem: open a web page, give permission for location (this is indeed set in the settings) and the web page can determine the location. After closing the web page and restarting it, the location is blocked again, even though the settings states that Firefox still has access to the location.