First Firefox release. Same feature set as the Chrome and Edge builds: turn any Gmail message into a dated task in Apple Reminders, Microsoft To Do, Todoist or Basecamp, draft replies in your own voice, and get nudged about a sent email only if nobody replies.

Two Firefox notes. Sign-in opens in an ordinary tab rather than a popup. And Firefox will ask whether to allow access to mail.google.com: granting it is what puts the buttons in Gmail, so if Gmail looks unchanged after installing, grant it from the add-on's Permissions tab.