2019579 - Firefox Enterprise process is still not terminated after closing the restarted and the dock windows

Status: RESOLVED WORKSFORME

(Firefox Enterprise :: Client, defect)

Description

[Miruna Curtean]

Attachment: 2026-02-26_14h48_01.mp4

Found in

• Firefox Enterprise 149.0a1 (2026-02-21)

Tested platforms

• Affected platforms: Windows 10/11, MacOS 15.7.4, Ubuntu 24.04

Steps to reproduce
1.Open Firefox enterprise and log in.
2.Type about:crashparent in the URL bar.
3. Observe a new tab opens but the FF window remains open in the OS dock.
4. Try to open the existing window. Window won't open, so close window from dock with Close/CMD+Q (on macOS) .
5. Try to open the felt client window by selecting the FF enterprise shortcut.

Expected result

The user is successfully logged in and the browser starts.

Actual result
Clicking on the browser icon does not open the browser.

Additional notes

Killing the Firefox process resolves the issue.

Comment 1

[:gerard-majax]

Are your restarting FELT from the crash reporter? This is something that will be disabled

Comment 2

[Miruna Curtean]

Attachment: 2019579 no longer repro.gif

(In reply to :gerard-majax from comment #1)

Are your restarting FELT from the crash reporter? This is something that will be disabled
No, I was restarting it from the shortcut icon after closing the window that showed up after restart. (The initial video attachment did not best illustrate those steps).
We have other crash related bugs that make use of the crash dialogue and those we shall have to close as well or update accordingly to the change.
Re-tested on macOS Tahoe 26.3, Win 11 and Ubuntu 24.0.3 on 150.0a1 (Build ID:20260227171835) and did not manage to reproduce this issue again, so I will be closing it.

Comment 3

[Miruna Curtean]

(In reply to :gerard-majax from comment #1)

Are your restarting FELT from the crash reporter? This is something that will be disabled