[User Story] As a product team, we want to know users' current interaction with the download dialogue [Acceptance Criteria] 1. Out of all the users who download a file in a month, we know how many users change the selection in "Open with" 2. Out of all the users who change the selection in "Open with", we know how many of them check "do this automatically for files like this from now on" 3. Out of all the users who download a file in a month, we know how many users click "Save file" 4. Out of all the users who click "Save file", we know how many users check "do this automatically for files like this from now on"

Changed priority to P2

Moving to p3 because no activity for at least 1 year(s). See https://github.com/mozilla/bug-handling/blob/master/policy/triage-bugzilla.md#how-do-you-triage for more information