I'm testing vivaldi at the moment and i love their tile tab option, i need the function of the firefox extension https://addons.mozilla.org/en-US/firefox/addon/multi-account-containers/ that will let you have each tab their own container. The feature got requested many years ago but there is not a timeline yet on vivaldi. Tried these two extension
https://chrome.google.com/webstore/detail/sessionbox-multi-login-to/megbklhjamjbcafknkgmokldgolkdfig
https://chrome.google.com/webstore/detail/multi-new-tab/lhgmljnajbbeefmfjiohbobioapdegag
but both of them are not working, each time i log in with a new account in a new tab i get logged off from the others.
Anyone has a solution?