I had firefox with my mac for last two years, all the sudden today I was asked to update so I did so, now it is not working

please help! I have always used firefox and it asked me to update today and now it no longer opens. It says "apple does not recognize developer" I have lost all my bookmarks because I deleted and tried downloading again. Still didn't work. MY info and bookmarks are gone and now I can even use firefox. I'm so disappointed. Please help.
Cory

Hello,
Your profile information is stored in a different location so your bookmarks and settings should still be intact.
Please see the article [[Firefox can't be opened after you install it on a Mac - How to fix]].
For future reference: https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles
You can also backup (and restore if you've backed up using these) extensions and preferences easily:
* (extensions) https://addons.mozilla.org/en-US/firefox/addon/febe/
* (preferences) https://addons.mozilla.org/en-US/firefox/addon/opie/

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