Off Button!
It would be very nice if android got the same treatment as windows did over browsers and gave the option to switch off default programs completely. I use openstreetmap and have google maps disabled, yet I still get 'redirected' at time to google maps and while a do have a gmail account, the client is never used. Firefox is working perfectly for me across desktop, tablet and phone and I think the next target should be for thunderbird to be as transparent, treating messages in the same way as emails. Uninstall 'rather' than 'disable' should be the standard requirement on these base functions where there are very good alternatives?