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Firefox can't be opened after you install it on a Mac - How to fix
Revision 76767:
Revision 76767 by heyjoni on
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How to install Firefox on your Mac when you see this error message: "Firefox.app cannot be opened because the identity of the developer cannot be confirmed."
How to install Firefox on your Mac when you see this error message: "Firefox.app cannot be opened because the identity of the developer cannot be confirmed."
Content:
{for win, linux}{warning}This issues applies to Mac devices only.{/warning}{/for}
Apple has made a security change to Mac OSX 10.9.5 which causes the error message '''Firefox.app cannot be opened because the identity of the developer cannot be confirmed''' to appear when you try to install Firefox on your Mac.
This issue has been resolved on newer versions of Firefox, but if you see this message while trying to install a version prior to Firefox 32, here are some steps you can take:
=Option 1 - Recommended=
# Hold down the {key Control} key while clicking on the Firefox file.
# Click {button Open} on the dialog window.
=Option 2 - Open Firefox through the System Preferences=
# Click on the Apple icon at the top left corner of your screen and open {menu System Preferences}.
# Click on {menu Security & Privacy}, then the {menu General} tab.
# You'll see a message stating that the ''Firefox.app'' was blocked. Click on {button Open Anyway}:
#;[[Image:blocked firefox mac]]
{for win, linux}{warning}This issues applies to Mac devices only.{/warning}{/for}
Apple has made a security change to Mac OSX 10.9.5 which causes the error message '''Firefox.app cannot be opened because the identity of the developer cannot be confirmed''' to appear when you try to install Firefox on your Mac.
Here are some steps you can take if you see this message:
=Option 1 - Recommended=
# Hold down the {key Control} key while clicking on the Firefox file.
# Click {button Open} on the dialog window.
=Option 2 - Open Firefox through the System Preferences=
# Click on the Apple icon at the top left corner of your screen and open {menu System Preferences}.
# Click on {menu Security & Privacy}, then the {menu General} tab.
# You'll see a message stating that the ''Firefox.app'' was blocked. Click on {button Open Anyway}:
#;[[Image:blocked firefox mac]]