I'm a newbie with some technical skills, but not a lot.
Should I be using MetaMask for added security?
What does MetaMask do for me, exactly?
Also, MetaMask seems to only work for Ethereum-based coins. Is there an extension like MetaMask available for the other coins?
well i guess . metamask is much safer than MyEtherWallet.
and may be you need to learn more about metamask.
but i guess for beginner try MyEtherWallet just safely store your Privatekey