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XULRunner Error after Update

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I am getting the following error after updating my Firefox installation: XULRunner This profile was last used with a newer version of this application. Please create a new profile.

I have tried creating a new profile and deleting the old ones, restarting Firefox, and even uninstalling Firefox and reinstalling it. The error still persists.

How can I get the error to quit popping up every time I open Firefox?

I am getting the following error after updating my Firefox installation: '''XULRunner This profile was last used with a newer version of this application. Please create a new profile.''' I have tried creating a new profile and deleting the old ones, restarting Firefox, and even uninstalling Firefox and reinstalling it. The error still persists. How can I get the error to quit popping up every time I open Firefox?
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