1288663 - User is able to login with an existing account via the Create a FxA page

Status: RESOLVED WONTFIX

(Firefox :: Sync, defect)

Description

[Ada [:adalucinet]]

Attachment: about:sync-log

[Affected versions]:
- Firefox 47.0.1
- Firefox 48 beta 10
- latest Aurora 49.0a1
- latest Nightly 50.0a1

[Affected platforms]:
- Windows 10 64-bit
- Mac OS X 10.11.1
- Ubuntu 16.04 LTS 64-bit

[Steps to reproduce]:
1. Launch Firefox with a clean profile.
2. In the Create a FxA wizard via the Firstrun page, add the credentials of an already created account (_only_ e-mail and password).
3. Click on 'Create account' button.

[Expected result]:
- User is notified that the account is already taken.

[Actual result]:
- User is automatically logged in.
- 'You must enter your age to sign up' notification is not displayed.

[Regression range]:
- Also reproducible with Firefox 45.0.2; will investigate further.

[Additional notes]:
- Screen recording: https://goo.gl/6Hwzx2

Comment 1

[Ryan Kelly [:rfkelly]]

This behavior is on purpose, adding our UX guru :rfeeley for comment

Comment 2

[Shane Tomlinson [:stomlinson]]

It's worth noting that the user is only signed in IFF the passwords match. IF the passwords do not match it'll say "Account already exists. Sign in" where "Sign in" is a link to the sign in page.

Comment 3

[Mark Hammond [:markh] [:mhammond]]

Surely this is a feature rather than a bug?