How to link app to facebook page

Hello I can not link my app to facebook page. I tried to do URL with the link of my page but in the app does not open the facebook page somebody can explain me how to do it.

When you open the url box you will see something like this ;::; maybe you should put you url between these marks I did it like this...

I wrote the url. I did open URL in new windw URL: "http ....." in pc testing works while app on Phone no how ever?

Did you update your app when you added url after you add url you must export and upload again update your app maybe it helps

I export and use only Google play

https://www.scirra.com/tutorials/5030/l ... ect/page-2

Thanks for your help