User-Agent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10.4; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6 Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10.4; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6 Trying to install Firefox 3.6.2 fails for lack of administrator privileges when being installed by the only administrator. No option to provide authentication. Reproducible: Always Steps to Reproduce: 1. Try to copy Firefox from .dmg file to Applications folder. 2. Window opens saying an older version exists. 3. Click on replace button. 4. Window opens saying operation cannot be completed because user lacks administrator privileges. No option to provide admin authentication. Actual Results: Upgrade fails Expected Results: Upgrade installed
The copy process is done by the operating system, not by Firefox (there's no install program at all). You really need to ensure that you have write permissions on that folder. You can try removing the folder manually for instance before you copy the new version (your profile will not be harmed).
Ken, you were not running as administrator?