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Firefox 49.0 can't be opened after install; these two do not work: https://support.mozilla.org/en-US/kb/firefox-cant-be-opened-after-you-install-it-on-mac

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OS X 10.10.5. As has been happening with recent versions, Firefox announced an upgrade, but added in the same message that the upgrade could not be installed because the account lacked administrator privileges.* I downloaded Firefox 49.0 and replaced the previous version. I got the warning (no surprise).

Option 1: Using Finder I hold down the control key while clicking the Firefox app file. It opens. I close it, wait, click the icon in the dock. Same verifying and then the developer message with Cancel or Open. Option 1 does not seem to cause 49.0 to be recognized as accepted.

Option 2: I click the icon in the dock and choose Cancel in the developer message. Then open System Preferences>Security & Privacy. I see the message about Firefox and the Open Anyway button. Whether I am fast enough to click it or not, I can't tell. Whether I try to click (even if it seems I was fast enough) or simply wait a second or two, that part of the Security & Privacy pane is cleared. The next time I launch Firefox, OS X verifies and offers Cancel or Open.

OS X 10.10.5. As has been happening with recent versions, Firefox announced an upgrade, but added in the same message that the upgrade could not be installed because the account lacked administrator privileges.* I downloaded Firefox 49.0 and replaced the previous version. I got the warning (no surprise). Option 1: Using Finder I hold down the control key while clicking the Firefox app file. It opens. I close it, wait, click the icon in the dock. Same verifying and then the developer message with Cancel or Open. Option 1 does not seem to cause 49.0 to be recognized as accepted. Option 2: I click the icon in the dock and choose Cancel in the developer message. Then open System Preferences>Security & Privacy. I see the message about Firefox and the Open Anyway button. Whether I am fast enough to click it or not, I can't tell. Whether I try to click (even if it seems I was fast enough) or simply wait a second or two, that part of the Security & Privacy pane is cleared. The next time I launch Firefox, OS X verifies and offers Cancel or Open.

Tuilleadh mionsonraí faoin chóras

Breiseáin Shuiteáilte

  • Adobe® Acrobat® Plug-in for Web Browsers, Version 10.1.16
  • Provides information about the default web browser
  • Microsoft Office for Mac SharePoint Browser Plug-in
  • Shockwave Flash 23.0 r0

Feidhmchlár

  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:49.0) Gecko/20100101 Firefox/49.0

Tuilleadh Eolais

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I have gotten a better look at what happens with Option 2.

The notice on System Preferences>Security & Privacy does not mention Firefox. Here is what happens with Option 2:

I click the icon in the dock and choose Cancel in the developer message. Then open System Preferences>Security & Privacy. I see this message:

   "My Application" was blocked ... 

And I see the Open Anyway button.

Whether I am fast enough to click Open Anyway or not, I can't tell. Whether I try to click (even if it seems I was fast enough) or simply wait a second or two, that part of the Security & Privacy pane is cleared. The next time I launch Firefox, OS X verifies, does not like the developer, and offers Cancel or Open.

The Security & Privacy window, as first displayed, shows:

"My Application" was blocked from operating because it is [Open Anyway]
not from an identified developer.

A profile has been installed that allows additional applications. [Open Profiles...]

Then it changes to the usual display.

I have not been able to find anything about "A profile has been installed that allows additional applications." I posted a question at Apple Support Forums; no reply yet.

I have gotten a better look at what happens with Option 2. The notice on System Preferences>Security & Privacy does not mention Firefox. Here is what happens with Option 2: I click the icon in the dock and choose Cancel in the developer message. Then open System Preferences>Security & Privacy. I see this message: "My Application" was blocked ... And I see the Open Anyway button. Whether I am fast enough to click Open Anyway or not, I can't tell. Whether I try to click (even if it seems I was fast enough) or simply wait a second or two, that part of the Security & Privacy pane is cleared. The next time I launch Firefox, OS X verifies, does not like the developer, and offers Cancel or Open. The Security & Privacy window, as first displayed, shows: "My Application" was blocked from operating because it is [Open Anyway] not from an identified developer. A profile has been installed that allows additional applications. [Open Profiles...] Then it changes to the usual display. I have not been able to find anything about "A profile has been installed that allows additional applications." I posted a question at Apple Support Forums; no reply yet.

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Here are two screenshots: immediately, and a second or so later.

Here are two screenshots: immediately, and a second or so later.

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