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Command Line

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Using Firefox, Aurora and Nightly on one machine:

Path for Firefox is: "C:\Program Files\Mozilla Firefox\firefox.exe" -p Ian Path for Aurora is: "C:\Program Files\Aurora\firefox.exe" -p Camelot Path for Nightly is: "C:\Program Files\Nightly\firefox.exe" -p BetaTest

Problem is, if Firefox is running and I click the Aurora icon, another window of Firefox opens and not Aurora; similarly if I click the icon for Nightly, another window of Firefox opens and not Nightly. The paths are distinctly separate. The profile manager has the correct usernames.

How do I have three concurrent sessions open on one machine each with their set username? Am I missing something?

Using Firefox, Aurora and Nightly on one machine: Path for Firefox is: "C:\Program Files\Mozilla Firefox\firefox.exe" -p Ian Path for Aurora is: "C:\Program Files\Aurora\firefox.exe" -p Camelot Path for Nightly is: "C:\Program Files\Nightly\firefox.exe" -p BetaTest Problem is, if Firefox is running and I click the Aurora icon, another window of Firefox opens and not Aurora; similarly if I click the icon for Nightly, another window of Firefox opens and not Nightly. The paths are distinctly separate. The profile manager has the correct usernames. How do I have three concurrent sessions open on one machine each with their set username? Am I missing something?

Chosen solution

You need to use the -no-remote command line option to open a second instance of Firefox using a different profile and target application. For example, if "C:\Program Files\Mozilla Firefox\firefox.exe" -p Ian is open, use this command line to start your BetaTest profile:

"C:\Program Files\Nightly\firefox.exe" -p BetaTest -no-remote  

For more information see http://kb.mozillazine.org/Opening_a_new_instance_of_Firefox_with_another_profile

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All Replies (5)

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Suluhisho teule

You need to use the -no-remote command line option to open a second instance of Firefox using a different profile and target application. For example, if "C:\Program Files\Mozilla Firefox\firefox.exe" -p Ian is open, use this command line to start your BetaTest profile:

"C:\Program Files\Nightly\firefox.exe" -p BetaTest -no-remote  

For more information see http://kb.mozillazine.org/Opening_a_new_instance_of_Firefox_with_another_profile

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Thank you, Alice. Much appreciated.

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Moderator, the above post by "mariopanda" has no relevance here or anywhere else on Mozilla Support. Please attend.

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Spam post deleted. Thanks for reporting it.

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You're welcome. Best regards from Sunny Johannesburg, ZAF