How can I change the system on my imac OSX 10.11.4 Administrator?

It's on a new iMac (2016). I SHOULD be the system administrator. Firefox won't let me update because it says I don't have permission and need to contact my system administrator. Ugh.

This happens with all apps or just Firefox? If it's just FF, and then in the Finder choose FF and right-click to get the information. In the sharing and permissions permissions are checked. Open the triangle. The permissions should be:

Me > reading and writing

Admin > read-only

all read-only.

Click the lock and authenticate you to change

Tags: Mac OS & System Software

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