Quote from: David Way on May 13, 2018, 02:14:58 AM

MetaMask uses something called "hierarchical deterministic wallets" (gory details) to generate addresses. Essentially, the addresses that you generate are determined solely by the "seed phrase." The first time you run MetaMask, it will generate a seed phrase for you, and then when you install MetaMask on other computers, you can "restore" from the same seed phrase. This means that the same addresses will be generated in the same order.

Original: https://ethereum.stackexchange.com/questions/33158/same-metamask-account-can-live-in-two-computers-at-the-same-time/33185#33185

Quote

As to #2, MetaMask uses something called "hierarchical deterministic wallets" (gory details) to generate addresses. Essentially, the addresses that you generate are determined solely by the "seed phrase." The first time you run MetaMask, it will generate a seed phrase for you, and then when you install MetaMask on other computers, you can "restore" from the same seed phrase. This means that the same addresses will be generated in the same order.