Staking through metamask wallet yields BFG tokens only. You'll have to move them back to your in-game balance if you want to receive the usual dividends.

Yogee is right. Farming and staking BFG tokens on the Betfury site are two different activities. So if you lock your BFG tokens on the farming page, you won't be able to get daily payouts for these tokens. By the way, Betfury wrote about it in the faq section on this page.