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firefox crashes when opening a new window

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New Contributor

firefox crashes when opening a new window

Firefox opens normally and runs properly -- until I close all its windows. When zero windows are present, and I return to Firefox and ask for a new window, Firefox hangs. To resolve the problem I must Force Quit the app, which generates a crash report to Apple. Occasionally Firefox has crashed on its own and generated a crash report to Mozilla, but this is rare. I have tried disabling all add-ons, but that had no effect.

As long as there is at least one Firefox window open, the app functions normally. This problem only occurs when going from zero windows to one window.

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Accepted Solutions
New Contributor

Re: firefox crashes when opening a new window

After checking each add-on, Beef Taco was identified as the cause of the problem.

3 REPLIES
Site Moderator

Re: firefox crashes when opening a new window

Try to repair the disk permissions:

Try to remove the Firefox plist file (org.mozilla.firefox.plist).

Go to "~/Library/Preferences" and remove the plist file for Firefox (org.mozilla.firefox.plist)


You can also check for problems with the localstore.rdf file.

New Contributor

Re: firefox crashes when opening a new window

Disk permissions and plist file did not help. Resetting Firefox did clear the problem, although with the collateral damage of having to set things up again. Better to be working than not, but I don't know what caused the problem or whether it will come back.

New Contributor

Re: firefox crashes when opening a new window

After checking each add-on, Beef Taco was identified as the cause of the problem.