Crypto payment firm CLIC Tech in conjunction with B2B firm Opporty is launching a browser extension to transact with Ether ($ETH) on Amazon, according to CoinDesk. The extension is based on Layer 2 scaling option Plasma Cash first put forward by Ethereum's Vitalik Buterin last spring. CLIC Tech is looking to add ERC-20 and ERC-721 tokens in the future.