From what I understand, Firefox does tag the initial browser install in order to track the marketing channel the install came from, but after the first run it s

From what I understand, Firefox does tag the initial browser install in order to track the marketing channel the install came from, but after the first run it stops sending it. So no, it cannot be correlated with location history. (And if you grab Firefox from https://www.mozilla.org/en-US/firefox/new/ https://www.mozilla.org/en-US/firefox/new/ it won't have the token.) You'll have to rely on your phone's OS stalk you by location. ;-)