This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Firefox Profile Manager not opening (V20.0.1)

  • 3 replies
  • 3 have this problem
  • 4 views
  • Paskiausią atsakymą parašė MumbleFysh

more options

I'm trying to open the Profile Manager in order to create a 'developers' profile. I was originally following this blog's instructions using the Run command.

http://blog.mozilla.org/addons/2009/01/28/how-to-develop-a-firefox-extension/

The problem is that it's just opening up a new Firefox window, and nothing else. I then went to get more updated documentation, here:

https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles?esab=a&as=aaq

And alas the same results. Here are the commands I have tried:


firefox -p firefox -P firefox -profilemanager firefox -ProfileManager

"C:\Program Files (x86)\Mozilla Firefox\firefox.exe" -p "C:\Program Files (x86)\Mozilla Firefox\firefox.exe" -P "C:\Program Files (x86)\Mozilla Firefox\firefox.exe" -profilemanager "C:\Program Files (x86)\Mozilla Firefox\firefox.exe" -ProfileManager


They all return the same result, which is just opening a new Firefox window.

I'm trying to open the Profile Manager in order to create a 'developers' profile. I was originally following this blog's instructions using the Run command. http://blog.mozilla.org/addons/2009/01/28/how-to-develop-a-firefox-extension/ The problem is that it's just opening up a new Firefox window, and nothing else. I then went to get more updated documentation, here: https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles?esab=a&as=aaq And alas the same results. Here are the commands I have tried: firefox -p firefox -P firefox -profilemanager firefox -ProfileManager "C:\Program Files (x86)\Mozilla Firefox\firefox.exe" -p "C:\Program Files (x86)\Mozilla Firefox\firefox.exe" -P "C:\Program Files (x86)\Mozilla Firefox\firefox.exe" -profilemanager "C:\Program Files (x86)\Mozilla Firefox\firefox.exe" -ProfileManager They all return the same result, which is just opening a new Firefox window.

Chosen solution

This happens when Firefox isn't completely closed and you still see a firefox.exe process or plugin-container process in the Task Manager.

See also:

Skaityti atsakymą kartu su kontekstu 👍 0

All Replies (3)

more options

Gah sorry about the mess of the commands. Here's my reattempt.

firefox -p

firefox -P

firefox -profilemanager

firefox -ProfileManager

"C:\Program Files (x86)\Mozilla Firefox\firefox.exe" -p

"C:\Program Files (x86)\Mozilla Firefox\firefox.exe" -P

"C:\Program Files (x86)\Mozilla Firefox\firefox.exe" -profilemanager

"C:\Program Files (x86)\Mozilla Firefox\firefox.exe" -ProfileManager

more options

Chosen Solution

This happens when Firefox isn't completely closed and you still see a firefox.exe process or plugin-container process in the Task Manager.

See also:

more options

My savior. Thank you! There was a Firefox process still running in the background.