1820111 - JavaScript error: resource://gre/modules/AsyncShutdown.sys.mjs, line 727: Error: Phase "IOUtils: waiting for profileBeforeChange IO to complete" is finished, it is too late [..] "JSON store: writing data for 'shieldpreferenceexperiments'

Status: NEW

(Firefox :: Normandy Client, defect, P3)

Description

[Henrik Skupin [:whimboo][⌚️UTC+2]]

The PreferenceExperiments.jsm is getting initialized during shutdown, when it's not necessary. This has been seen in a Marionette test that quickly requests quitting Firefox once it finished startup:

Here the appropriate excerpt from the log:

https://treeherder.mozilla.org/logviewer?job_id=407440882&repo=autoland&lineNumber=46252

[task 2023-03-01T15:47:13.741Z] 15:47:13     INFO -  JavaScript error: resource://gre/modules/AsyncShutdown.sys.mjs, line 727: Error: Phase "IOUtils: waiting for profileBeforeChange IO to complete" is finished, it is too late to register completion condition "JSON store: writing data for 'shieldpreferenceexperiments'"

For details also see bug 1819671 comment 5.

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The severity field is not set for this bug.
:barret, could you have a look please?

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