MetaMask is a browser plugin, available as the MetaMask login Chrome extension or Firefox Add-on. At its core, it serves as an Ethereum wallet: By installing it, you will get access to a unique Ethereum public address, with which you can start sending and receiving ether or tokens.
Spectrum :
Charter Email has been rebranded and it is know marketed as Spectrum login Webmail. The domain charterm net was kept so that existing clients can access their emails..