1897947 - The value for os.environment.launch_method is different for MSIX builds only on Windows 10

Status: NEW

(Firefox :: Shell Integration, defect)

Description

[Bogdan Maris, Desktop QA]

Found in

• Latest Nightly 128.0a1

Affected versions

• Latest Nightly 128.0a1

Tested platforms

• Affected platforms: Windows 10
• Unaffected platforms: Windows 11, Windows 11 ARM, macOS, Ubuntu

Steps to reproduce

1. Visit about:preferences
2. Check the Open Nightly automatically when your computer starts up option
3. Restart the OS
4. Wait for Nightly to autostart
5. Visit about:telemetry and search for os.environment.launch_method

Expected result

• The value of os.environment.launch_method is Autostart

Actual result

• The value of os.environment.launch_method is Other

Regression range

• Not a regression since this is a new thing for MSIX builds.

Additional notes

• This is only reproducible with MSIX builds on Windows 10. MSIX build on Windows 11 and Windows 11 ARM has the value Autostart
• Not sure if os.environment.launch_method is used anymore but it was used when the feature first landed in non-MSIX builds.

Comment 1

[Nipun Shukla]

Can you please let me know which version of Windows you're running? (System Information -> Version)

Comment 2

[Bogdan Maris, Desktop QA]

(In reply to Nipun Shukla from comment #1)

Can you please let me know which version of Windows you're running? (System Information -> Version)

Version 10.0.19045 Build 19045 (4412 - 22h2)

Comment 3

[Nipun Shukla]

That is odd. According to the API docs the minimum supported version is 19041 (2004). I'll investigate this further but we may need a different approach for collecting this telemetry on older versions.