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I can't update, error message says I don't have system permission. There is no admin account on this computer. It only has one user.

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This is a one-user Mac running snow leopard. I don't think I ever set up an admin account since I am the only user. Why can't I update Firefox?

This is a one-user Mac running snow leopard. I don't think I ever set up an admin account since I am the only user. Why can't I update Firefox?

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  • Download a new copy of the Firefox program: http://www.mozilla.com/firefox/all.html
  • Trash the current Firefox application to do a clean (re)install.
  • Install the new version that you have downloaded.

Your profile data is stored elsewhere in the Firefox Profile Folder, so you won't lose your bookmarks and other personal data.