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Problem with Firefox upgrade

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I tried the suggestion to download Firefox and upgrade Symantec Endpoint Protection. It does not work. The Symantec Endpoint Protection is disabled when I try to use Firefox. Is there a way to get the old Firefox back? (PS: I do not know if I am posting correctly. This is the first time that I have asked questions on this site.)

I tried the suggestion to download Firefox and upgrade Symantec Endpoint Protection. It does not work. The Symantec Endpoint Protection is disabled when I try to use Firefox. Is there a way to get the old Firefox back? (PS: I do not know if I am posting correctly. This is the first time that I have asked questions on this site.)

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Your original posting is here - https://support.mozilla.org/en-US/questions/962961 - please continue there. Locking this 3rd thread.