There is an option here to make the deprecated crypto wallets extension available in a new install or in a new profile: brave://flags/#ethereum_remote-client_new-installs
We don’t recommend you use that old wallet though and don’t see a reason to do that.
I’d recommend to use the new wallet at brave://wallet and restore you seed phrase there.
Please note for others that for support on MetaMask it’s better to contact MetaMask.