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Why can't I update Firefox on my Mac?

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Every time I try to update Firefox (for months now), it doesn't work. I download the dmg file on my Mac and then I can't get it to work. Today I tried 47.0.1 and then a window pops up saying "The following disk images couldn't be opened." It lists the file (under the heading "Image"), Firefox 47.0.1.dmg and then says, "Reason: not recognized." Anyone know how to fix this?

Every time I try to update Firefox (for months now), it doesn't work. I download the dmg file on my Mac and then I can't get it to work. Today I tried 47.0.1 and then a window pops up saying "The following disk images couldn't be opened." It lists the file (under the heading "Image"), Firefox 47.0.1.dmg and then says, "Reason: not recognized." Anyone know how to fix this?

Chosen solution

Hello, please try one more time to download a full copy of firefox and then install that copy, follow the next steps:

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

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.


thank you

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Additional System Details

Installed Plug-ins

  • Coupons Inc., Coupon Printing FireFox Plugin
  • Displays Java applet content, or a placeholder if Java is not installed.
  • Office Live Update v1.0
  • Musicnotes Viewer plugin 1.18.8 http://www.musicnotes.com
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in web pages. For more information, visit the QuickTime Web site.
  • Shockwave Flash 22.0 r0
  • 5.1.41212.0
  • Unity Web Player version 4.2.2f1. (c) 2013 Unity Technologies ApS. All rights reserved.
  • iPhoto6

Application

  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:35.0) Gecko/20100101 Firefox/35.0

More Information

ideato 893 solutions 6250 answers

Chosen Solution

Hello, please try one more time to download a full copy of firefox and then install that copy, follow the next steps:

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

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.


thank you

Hello, please try one more time to download a full copy of firefox and then install that copy, follow the next steps: 1. Download a copy of the latest firefox from http://www.mozilla.org/en-US/firefox/all.html ('''full dmg package''') 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 [http://kb.mozillazine.org/Profile_folder_-_Firefox#Mac Firefox Profile Folder], so you won't lose your bookmarks or other personal data. thank you
cor-el
  • Top 10 Contributor
  • Moderator
17336 solutions 156744 answers
See also: *[[/questions/1120075]] Has FF reached end of life for Mac 10.6 through 10.8? *https://blog.mozilla.org/futurereleases/2016/04/29/update-on-firefox-support-for-os-x/ You can try the Firefox 45 ESR version to see if that works for you. Firefox 45.2.0 ESR: *https://www.mozilla.org/en-US/firefox/organizations/all/ *https://www.mozilla.org/en-US/firefox/organizations/notes/ *https://www.mozilla.org/en-US/firefox/organizations/system-requirements/