We have found that Chrome, Brave, or Firefox browsers are solid browsers to use. Please make sure that you are current with the latest updates of your browser. Apple’s Safari browser is not compatible with MetaMask at the time of this writing.
The “Browser” feature within MetaMask mobile app is a solid choice to use. You can access that browser by clicking the menu on the upper left menu of the MetaMask mobile app, then selecting "Browser". That will open a browser within MetaMask app. You can then go to app.strongblock.com