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why will Firefox 16.0.1 not install on my mac


I am running firefox v 15 on my mac pro & I can not upgrade it to 16.0.1 It says some items had to be skipped. all must be unlocked and not be in read only or no access I unlock all and it still won't install

Additional System Details

This happened

Every time Firefox opened

This started when...

Don't know

Installed Plug-ins

  • Shockwave Flash 11.4 r402
  • iPhoto6
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in web pages. For more information, visit the QuickTime Web site.
  • Displays Java applet content, or a placeholder if Java is not installed.
  • CIG Download
  • RealPlayer Plugin


  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:15.0) Gecko/20100101 Firefox/15.0

More Information

  • Top 25 Contributor
616 solutions 4260 answers

Hi zandarnamyw

If there is an issue with update or permissions the better, quickest and safest way is to download and install firefox:

1. Download a copy of the latest firefox from http://www.mozilla.org/en-US/firefox/all.html

2. Trash the current Firefox application to do a clean install.

3. Install the version that you have downloaded.

Do not select to remove your personal data, your profile data is stored elsewhere in the Firefox Profile Folder, so you won't lose your bookmarks or other personal data.

see also: Installing Firefox on Mac

thank you

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