Problem wilt WebGL build

Unity Engine
1

When i build my game with WebGL in firefox I will get this error when trying to test the game on facebook

The browser could not allocate enough memory for the WebGL content. If you are the developer of this content, try allocating less memory to your WebGL build in the WebGL player settings.

and what is the best size or resolution to build a game in webGL? When i build mine i have to scroll down to see the bottom of the game and the top is all cut off

2

Is it 32-bit Firefox?
What’s the value of WebGL Memory size ?

3

it is using 512 for memory size

I think it is 64bit

it works within website just not facebook app i get that error

4

perhaps code or data are too big. what’s the size of the uncompressed jsgz and datagz files ? (rename them to *.gz so you can unpack them)