1957896 - Duplicate names can be created if edited at the same time

Status: NEW

(Toolkit :: Startup and Profile System, defect, P3)

Description

[Raluca Popovici, Desktop QA]

Attachment: duplicateprofiles (1).mov

Found in:
Beta 138.0b1

Affected versions:
Beta 138.0b1
Nightly 139.0a1(2025-04-01)

Tested platforms:

Affected platforms: macOS 13.2.1, Windows 11

Preconditions:
Have pref 'browser.profiles.enabled' set to true.

Steps to reproduce:

1. Go to the Profiles option from the Menu bar and click on New Profile
2. Repeat step 1 to have 2 windows opened with about:newprofile.
3. Complete with the same name, theme and avatar on both windows.
4. Click on Done editing button on both windows.

Expected result:
The duplicate error message should displayed.

Actual result:
2 duplicate profiles are created. Please see the screen recording.

Regression range:
This is not a regression; it's introduced with the Profile Switching feature.

Comment 1

[Jared Hirsch [:jhirsch] (he/him) (Needinfo please)]

This only occurs if you edit two profiles at exactly the same time. In normal usage, if the user edits one profile, launches another, and attempts to duplicate the name, there will be an error message. We're OK to live with this edge case in the error handling.