1764121 - All tabs crashing after update to 100.b4, nsAppShell::Init()

Status: RESOLVED DUPLICATE of bug 1571516

(Firefox :: Tabbed Browser, defect)

Description

[Clint Priest]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:100.0) Gecko/20100101 Firefox/100.0

Steps to reproduce:

Updated to 100.b4.

Actual results:

After update, all tabs were crashing.

Expected results:

No issues.

Link to Crashes: https://crash-stats.mozilla.org/signature/?product=Firefox&signature=nsAppShell%3A%3AInit&date=%3E%3D2022-04-04T16%3A20%3A00.000Z&date=%3C2022-04-11T16%3A20%3A00.000Z&_columns=date&_columns=product&_columns=version&_columns=build_id&_columns=platform&_columns=reason&_columns=address&_columns=install_time&_columns=startup_crash&_sort=-date&page=1#reports

Specific Crash: https://crash-stats.mozilla.org/report/index/ee45a697-c7e9-46e0-ab8e-b977c0220411

I bisected my configuration and narrowed it down to the following preference being the cause:

user_pref("dom.ipc.useNativeEventProcessing.content", true);

Removing that from prefs.js fixed everything up.

Comment 1

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

The Bugbug bot thinks this bug should belong to the 'Firefox::Tabbed Browser' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

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

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

For more information, please visit auto_nag documentation.

Comment 3

[Negritas Sergiu, Desktop QA]

Hello I have tried to reproduce the issue with firefox 100.0b4 from firefox 99.0b9 but in my case I haven't got any crash on Windows 10.
Marking this issue as new since it is a crash and has a crash report.

Thank you!

Comment 4

[Ray Kraesig [:rkraesig]]

This isn't a new crash — just a new signature for an old crash, thanks to additional diagnostics.