Issues connecting Ledger to Metamask on Firefox - still spinning

[Cartier]

ok, while we wait please help me understand the following on your site here

What are Imported Accounts?

What are Imported Accounts? By Lesa Moné Imported accounts are specific addresses that you can import into your MetaMask wallet. Imported addresses are not part of your wallet’s 12 words seed phrase. Why import separate accounts into your primary MetaMask account? Say you have accounts in two separate MetaMask wallets, or you have an address in a different wallet software, that you would like to view in the same MetaMask interface. Or, maybe, you have a shared address for your family’s expen…

“imported accounts are not associated with your wallet’s seed phrase. This means, if you restore your primary MetaMask wallet later with your seed phrase, the imported accounts will not automatically appear.”

I understand this applies when 2 wallets are involved, however

if a SINGLE MetaMask wallet is being used, and the acct’s within it are imported into the metamsk extension in a second browser, they all still maintain their keys, correct?