Looking for logging into the Metamask Sign Up site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Metamask Sign Up site. After that you can login as usual with your login credentials.
https://metamask.io/
https://ddex.zendesk.com/hc/en-us/articles/115004413273-Create-a-new-MetaMask-account
https://medium.com/publicaio/how-to-create-a-metamask-account-e6d0ef156176
https://medium.com/@mvlchain/register-your-ethereum-wallet-to-metamask-c72befef3749
https://www.toptal.com/ethereum/one-click-login-flows-a-metamask-tutorial
https://chrome.google.com/webstore/detail/metamask/nkbihfbeogaeaoehlefnkodbefgpgknn?hl=en
https://kb.myetherwallet.com/migration/moving-from-private-key-to-metamask.html
https://github.com/MetaMask/metamask-extension
https://ethereum.stackexchange.com/questions/46463/authorization-via-metamask
https://www.cryptocompare.com/wallets/guides/how-to-use-metamask/
https://twitter.com/metamask_io?lang=en
https://support.bancor.network/hc/en-us/articles/360000457572-How-to-use-MetaMask-on-the-Bancor-Network
http://cryptocurrencyfacts.com/metamask-explained/