Cannot open "Firefox.app" because the identity of the sponsor cannot be confirmed: recommended solutions don't work... still can't open the download. Help?

I tried the recommended two solutions to replace but none works. Firefox was slowly turning last night so I decided to update it. Did not help. Downloaded again, but now can't access it at all. I'm on a Mac using 10.9.5.

If he has problems with the update or with the permissions then best is to download the full version and trash the version currently installed to do a fresh install of the new version.

Download a new copy of the Firefox application and save the file to disk on the desktop image

Your personal data are stored in the Firefox profile folder, so you will not lose personal data as favorites when you uninstall and (re) install or update Firefox.

Tags: Firefox

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