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

XULRunner Error: Could not determine any profile running in backgroundtask mode!

  • 5 பதிலளிப்புகள்
  • 9 இந்த பிரச்னைகள் உள்ளது
  • 13117 views
  • Last reply by Our Free Society

I recently installed new pc with fresh Firefox Developer Edition. Then I transfered the profile folder from old pc to the new pc. All bookmarks, addons, etc is there. Just the XULRunner popup appears only on the new pc. I uninstalled firefox on the new pc again and reinstalled it with profile cleaning. After profile cleaning firefox got faster and addons got removed. But the XULRunner popup keeps appearing. When I go to taskscheduler and trigger the "Firefox Developer Edition Background Update CA9422711AE1A81C" again, the XULRunner popup appears. Removing this taskscheduler and Firefox keeps readding it and the XULRunner popup are back. Any idea how I can get rid of the XULRunner popup?

I recently installed new pc with fresh Firefox Developer Edition. Then I transfered the profile folder from old pc to the new pc. All bookmarks, addons, etc is there. Just the XULRunner popup appears only on the new pc. I uninstalled firefox on the new pc again and reinstalled it with profile cleaning. After profile cleaning firefox got faster and addons got removed. But the XULRunner popup keeps appearing. When I go to taskscheduler and trigger the "Firefox Developer Edition Background Update CA9422711AE1A81C" again, the XULRunner popup appears. Removing this taskscheduler and Firefox keeps readding it and the XULRunner popup are back. Any idea how I can get rid of the XULRunner popup?
Attached screenshots

தீர்வு தேர்ந்தெடுக்கப்பட்டது

C:\Users\REDACTED\AppData\Roaming\Mozilla\Firefox\Background Tasks Profiles\djdqsdaw.MozillaBackgroundTask-CA9422711AE1A81C-backgroundupdate this folder was missing on the new pc. I copied that folder from old pc (backup) and the XULRunner task error doesn't show anymore. I hope it helps someone who has the same issue.

Read this answer in context 👍 13

All Replies (5)

தீர்வு தேர்ந்தெடுக்கப்பட்டது

C:\Users\REDACTED\AppData\Roaming\Mozilla\Firefox\Background Tasks Profiles\djdqsdaw.MozillaBackgroundTask-CA9422711AE1A81C-backgroundupdate this folder was missing on the new pc. I copied that folder from old pc (backup) and the XULRunner task error doesn't show anymore. I hope it helps someone who has the same issue.

The issue occurs when one moves firefox profiles from one installation of the Firefox to another excluding background tasks profiles. To resolve te issue, on target Firefox installation:

  1. Open C:\Users\<YOUR_USER_NAME>\AppData\Roaming\Mozilla\Firefox\profiles.ini
  2. Find section [BackgroundTasksProfiles]
  3. In the string starting with 'MozillaBackgroundTask-' in that section, select everything after equality sign to the end of string and copy selected text to clipboard
  4. In the Windows Explorer, go to 'Background Tasks Profiles' folder
  5. Create new folder using text from clipboard (copied at step 3) as folder name.

And you're done.

flammable1 மூலமாக திருத்தப்பட்டது

Thank you so much.

simonbergi9 said

C:\Users\REDACTED\AppData\Roaming\Mozilla\Firefox\Background Tasks Profiles\djdqsdaw.MozillaBackgroundTask-CA9422711AE1A81C-backgroundupdate this folder was missing on the new pc. I copied that folder from old pc (backup) and the XULRunner task error doesn't show anymore. I hope it helps someone who has the same issue.

Thank you soooo MUCH & flammable too.

I've been going thru hell with this crashing my Brave & TB for months b/c of this popup error which was taxing out my computer & I'd have to restart my Brave & TB b/c my minimize icons wouldn't work once the computer crashed. sigh

Thanks again

Thank you so much.

simonbergi9 said

C:\Users\REDACTED\AppData\Roaming\Mozilla\Firefox\Background Tasks Profiles\djdqsdaw.MozillaBackgroundTask-CA9422711AE1A81C-backgroundupdate this folder was missing on the new pc. I copied that folder from old pc (backup) and the XULRunner task error doesn't show anymore. I hope it helps someone who has the same issue.

Thank you soooo MUCH & flammable too.

I've been going thru hell with this crashing my Brave & TB for months b/c of this popup error which was taxing out my computer & I'd have to restart my Brave & TB b/c my minimize icons wouldn't work once the computer crashed. sigh

Thanks again

simonbergi9 said

C:\Users\REDACTED\AppData\Roaming\Mozilla\Firefox\Background Tasks Profiles\djdqsdaw.MozillaBackgroundTask-CA9422711AE1A81C-backgroundupdate this folder was missing on the new pc. I copied that folder from old pc (backup) and the XULRunner task error doesn't show anymore. I hope it helps someone who has the same issue.

Thank you soooo MUCH & flammable too.

I've been going thru hell with this crashing my Brave & TB for months b/c of this popup error which was taxing out my computer & I'd have to restart my Brave & TB b/c my minimize icons wouldn't work once the computer crashed. sigh

Thanks again