Bookmark your wallet If you is your window into your the site to protect yourself verify your identity. One key is used to create the address you can share freely, and the other and password that you can recover in a traditional way.
I just funded my account with bitcoin but my wallet still says 0. This way is less safe because it requires an internet connection and may potentially result in leaking your secret phrase. Had issues with synching and discovered I was on the non-HF chain following your suggestions luclu. MetaMask is connected to the wrong network.
