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Firefox won't open on my new imac, get message in a red bar stating "bookmarks and history system will not be functional because one of Firefox's files is in us

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I have a new iMap using 10.9 OS. All was working fine for several weeks, then I got the above error message. I have uninstalled and reinstalled Firefox and when I open it I get a window with the above statement in a red box across the top of the window, and am unable to get into Firefox to do any of the suggested fixes.

I have a new iMap using 10.9 OS. All was working fine for several weeks, then I got the above error message. I have uninstalled and reinstalled Firefox and when I open it I get a window with the above statement in a red box across the top of the window, and am unable to get into Firefox to do any of the suggested fixes.

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See:

Try to delete the places.sqlite file in the Firefox profile folder.

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Thanks, but I can't get into Firefox to delete places.sqlite or do anything, the site is frozen or whatever, can't get into history, bookmarks, help, etc. All I have is a spinning wheel. Sorry, I am not good at any of this, so I apologize for being so dense.

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In Mac OS X v10.7 and later, the $HOME/Library folder is a hidden folder.

  • /Users/<user>/Library/Application Support/Firefox/Profiles/<profile>/