Firefox won't open due to profile missing message

I have a Mac OS X 10.9.4
I got an error saying my profile is missing and it won't open, so i can not trouble shoot inside the browser since it will not open.

A possible and likely cause of this issue is a problem with the profiles.ini file and the profile marked as Default=1 in this file is no longer present on the hard drive.
*Windows: %AppData%\Mozilla\Firefox\<br>C:\Users\<user>\AppData\Roaming\Mozilla\Firefox\Profiles\<profile>\
*Linux: ~/.mozilla/firefox/
*Mac: ~/Library/Application Support/Firefox/
You can use one of these to make Firefox create/use a new default profile:
*Delete the profiles.ini file to force Firefox to create a new default profile
*Use the Profile Manager to create a new profile
*Use "Choose Folder" when you create a new profile to select the location of a lost profile and recover this profile
*http://kb.mozillazine.org/Profile_Manager
*https://support.mozilla.org/kb/Managing+profiles
*http://kb.mozillazine.org/Profile_folder_-_Firefox

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Did you delete the profiles.ini file?
*http://kb.mozillazine.org/profiles.ini_file
You can use this button to go to the currently used Firefox profile folder:
*Help > Troubleshooting Information > Profile Directory: Show Folder (Linux: Open Directory; Mac: Show in Finder)
*Windows: %AppData%\Mozilla\Firefox\<br>C:\Users\<user>\AppData\Roaming\Mozilla\Firefox\Profiles\<profile>\
*Linux: ~/.mozilla/firefox/
*Mac: ~/Library/Application Support/Firefox/
You can use one of these to make Firefox create/use a new default profile:
*Delete the profiles.ini file to force Firefox to create a new default profile
*Use the Profile Manager to create a new profile
*Use "Choose Folder" when you create a new profile to select the location of a lost profile and recover this profile
*http://kb.mozillazine.org/Profile_Manager
*https://support.mozilla.org/kb/Managing+profiles
*http://kb.mozillazine.org/Profile_folder_-_Firefox

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I can find NO "profiles.ini" file anywhere. When I open the "default library" there are none of the files you say should be there.
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Create a new profile as a test to check if your current profile is causing the problems.
See "Creating a profile":
*https://support.mozilla.org/kb/profile-manager-create-and-remove-firefox-profiles
*http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Profile_issues
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*http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

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''arcandl [[#question-1038482|said]]''
<blockquote>
I'm running Firefox on a Windows 7 machine. Firefox won't open following the latest update. I've read the help articles and it seems like I need to create a new profile because my settings have likely been corrupted. I'm unable to open Profile Mgr, even when using entire directory path in cmd line. I've tried the following commands in the command line:
firefox -p
"C:\Program Files (x86)\Mozilla Firefox\firefox.exe" -p
Nothing happens with either command.
I'm also running Norton Internet Security. I read a help article Re Virtual Browsing features possibly causing a problem. The article said to check the virtualization setting in the internet security software and to clear the virtual cache. I went thru all of the settings menus in Norton Internet Security version 21.6.0.32 and I didn't see anything that looked like 'virtualization" settings, so I assumed that this doesn't apply to me.
If you have any ideas, I'd sure appreaciate your expertise!!
</blockquote>
''philipp [[#answer-670108|said]]''
<blockquote>
hello arcandl, when firefox isn't launching after you double-click on the shortcut this is sometimes also a sign of malware being active on a system.
you might want to try running a scan with some different other security tools like the [http://www.malwarebytes.org/products/malwarebytes_free free version of malwarebytes] and [http://www.bleepingcomputer.com/download/adwcleaner/ adwcleaner] which are specialised in removing adware and browser hijackers.
[[Troubleshoot Firefox issues caused by malware]]
</blockquote>
Phillip - You're a genius!!! I ran malwarebytes and it resolved my problem. Thank you so much!!!

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*http://kb.mozillazine.org/Uninstalling_Firefox
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*http://kb.mozillazine.org/Profile_folder_-_Firefox
*http://kb.mozillazine.org/Profile_backup
*http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Clean_reinstall

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*http://kb.mozillazine.org/Backing_up_and_restoring_bookmarks_-_Firefox
*https://support.mozilla.com/kb/Recovering+important+data+from+an+old+profile
*http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox
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Use this link to see how to do this:
http://support.apple.com/kb/HT1564
If Safari works ok in safe mode, then your problem points to something 3rd party related.
Have a look at this:
http://support.apple.com/kb/TS3230?viewlocale=en_US
I hope this helps

Firefox won't open due to profile missing message

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