"Firefox is already running merely is not responding" mistake - How to fix

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All of your personal settings, bookmarks, and other information are kept in your Firefox profile. Firefox needs an unlocked profile to commencement up, and if the profile is locked, it displays the message, Firefox is already running, but is not responding A copy of Firefox is already open up . This article explains what to do if yous see this message and how to prevent it from showing at startup.

FirefoxAlreadyOpen-Mac Fx34already-running-Win7

Tabular array of Contents

  • 1 End Firefox processes
    • one.1 Ubuntu Linux
    • 1.2 Use the Windows Chore Director to close the existing Firefox process
  • 2 Remove the profile lock file
  • 3 Remove the -no-remote startup option
  • 4 Initialize the connection to a file share
  • 5 Check access rights
  • 6 Restore data from a locked profile

Terminate Firefox processes

If Firefox did not shut downwardly normally when you last used it, Firefox might still be running in the background, even though information technology is not visible. If you endeavour to open it while it's running, an mistake bulletin will appear with the option to click Close Firefox. If that doesn't solve the trouble, restart your computer or try the following options. Restart your computer to meet if the problem goes away or endeavour the following options.

Ubuntu Linux

  1. Click on and cull .
  2. In Administration, click on . Here you will find firefox-bin 1 or more times.
  3. Highlight the list and click Cease Process for each one.

Apply the Windows Task Managing director to close the existing Firefox process

  1. Right-click on an empty spot in the Windows chore bar and select (or press Ctrl+Shift+Esc).
  2. When the Windows Job Director opens, select the tab.
    Windows Task Manager
  3. Select the entry for firefox.exe (press F on the keyboard to observe it) and click End Procedure.
  4. Click Yes in the "Task Manager Alarm" dialog that appears.
  5. Repeat the above steps to end all boosted firefox.exe processes, then exit the Windows Task Manager.
  6. Start Firefox normally.

Remove the profile lock file

Firefox may have close down abnormally, leaving the lock file in identify. To gear up this, open the profile folder (see Finding your contour without opening Firefox) and delete the parent.lock file lock and .parentlock files .parentlock file.

Remove the -no-remote startup pick

If yous start Firefox with th-e -no-remote control line pick, try removing this pick.

If you store the contour on a file share, attempt accessing the file share beforehand using Windows Explorer.

Check admission rights

Firefox must also have the right to create files in the profile folder. The error can occur if you try to employ a profile from a file system mounted with read-only permission (due east.g. a remote Windows share which doesn't have "Allow network users to change my files" checked).

To cheque if the contour folder has the proper permissions:

  1. Find your Firefox profile folder - see Finding your profile without opening Firefox.
    • If y'all merely have one profile, its folder would have "default" in the proper noun.
  2. Correct-click on your profile folder and select .
  3. Click on the tab.
    readonlyprofile.png
  4. Brand sure Read-only is not checked marked.
  1. Find your Firefox contour folder - see Finding your profile without opening Firefox.
    • If you only have 1 profile, its folder would have "default" in the name
  2. Hold downward the Ctrl key while you lot click on your contour folder, and select .
  3. Brand certain Ownership & Permissions is set to Read & Write.
  1. Discover your Firefox profile folder - meet Finding your profile without opening Firefox
    • If you only have one contour, its folder would take "default" in the name.
  2. Correct-click on your profile folder and select .
  3. Click on the tab.
  4. Make certain Folder access is set to Create and delete files.

Restore data from a locked contour

If you lot are unable to unlock the contour using the above methods, use the Profile Manager to create a new profile and migrate your data from the locked contour to the new profile. For information on how to do this, encounter Recovering of import data from an old profile.

These fine people helped write this article:

AliceWyman, philipp, Underpass, Tonnes, Michael Verdi, scoobidiver, John99, Swarnava Sengupta, mluna, ideato, jbnewby67, user917725, Lan, Joni, Artist

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