1732730 - browser.tabs.warnOnClose default value is listed as userset in config for the first session after update

Status: RESOLVED WONTFIX

(Firefox :: General, defect)

Description

[Adrian Florinescu [:aflorinescu]]

[Description:]

Upgrading from a non-default vaue for browser.tabs.warnOnClose (false) to default value for browser.tabs.warnOnClose (false) on Fx94 will show the preference as userset until the first restart.

[Environment:]

Windows 10 /Mac 11

[Steps:]

1. Install an older version of Firefox (Nightly92).
2. Open about:config and switch the value for browser.tabs.warnOnClose from true(default on 92) to false(userset on 92)
3. Upgrade: Nightly92 to Nightly94
4. Open about:config and check the value for browser.tabs.warnOnClose.

[Actual Result:]

Although default value for browser.tabs.warnOnClose on Fx94 is False, it is shown as userset (bold)

[Expected Result:]

The value on Fx94 should be shown as default, not shown as userset.

[Note:]

Since after the first restart the config shows the right type of value, this is more from the NIT category. Unless it's a config glitch, maybe this issue could affect any Normandy interactions, if any, for the first run after update.

[Regression Range:]

N/A - new feature

Comment 1

[:Gijs (he/him)]

Yeah, I don't think we need to fix this as it's only about:config and only on the updating instance (not after a restart). I don't think this will affect any normandy work.