WebGl don't support mobile?!

hi guys! i created a game for the fb instant games
and it work perfect on browser
but when i try to play the game in messenger
it didn’t work, or even if it did
the ads don’t show up
is there a way to export the game or what?
help plz

Unity does not officially support WebGL/Mobile.

And it’s also not a good idea because Apple’s implementation is very unstable.