560043 - "Warning: unrecognized command line flag -foreground" on launch when the application restarts during startup

Status: NEW

(Toolkit :: Startup and Profile System, defect)

Description

[Nickolay_Ponomarev]

From bug 369147 comment 23. This is Mac OS X only.

Steps to reproduce (in Terminal.app):
1. $ rm -rf /path/to/test-profile
$ mkdir /path/to/test-profile
2. $ /path/to/Minefield.app/Contents/MacOS/firefox-bin -no-remote -profile /path/to/test-profile -foreground
(Quit)
3. $ /path/to/Minefield.app/Contents/MacOS/firefox-bin -no-remote -profile /path/to/test-profile -foreground

Actual results:
During step (2) in the Error Console:

Error: Warning: unrecognized command line flag -foreground
Source File: file:///....app/Contents/MacOS/components/nsBrowserContentHandler.js
Line: 747

ps -ef | grep firefox
shows firefox started with two foreground flags:
firefox-bin -no-remote -profile /path/to/test-profile -foreground -foreground

Expected results: no "-foreground"-related error in the Error Console.

Note: the "-foreground" flag in the steps to reproduce is needed to make sure Firefox starts in foreground, since it usually doesn't do that when launched from the terminal.
The issue itself does *not* depend on the -foreground flag being passed initially. You may see this problem when using Firefox normally (usually after extension-related changes or upgrades).

Comment 1

[Nickolay_Ponomarev]

I meant to say that during step 3 (i.e. second launch with the profile) the error does not occur and the difference between the two runs is that in step 2 Firefox restarts (and adds two -foreground flags to the child process command line) and in step 3 it doesn't do that.