This is currently in Preview – planned to release very soon.
In the following weeks, Teams will be rolling out support on Safari 11+ on macOS. While in preview, there are known issues with Safari’s ITP mode and it is advised that users disable Safari’s Intelligent Tracking Prevention.
An error occurred while saving the commentMichael commented
Teams doesn't work in Safari and drag-and-drop for OneDrive and SharePoint isn't supported in FireFox. There isn't one browser I can use with Office365. Very frustrating.