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dialabrain
Inspiring
September 13, 2016
Answered

Can't install latest flash player MacOS Sierra GM

The title says it all. Can't install version 23.* Tried uninstalling also before install with no luck.

Any Thoughts?

TIA

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dialabrainCorrect answer
Inspiring
September 13, 2016

FWIW, I got Flash to install using this link.

https://fpdownload.macromedia.com/pub/flashplayer/latest/help/install_flash_player_osx.dmg

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16 replies

mferreira85
Participant
September 16, 2016

Hello,

The problem you are not able to install Adoble Flash PLayer on macOS Sierra is because of SIP (System Integrity Protection) which is preventing the app to write on the directory /var/folders/...

To solve this you have to enter Recovery Mode of Mac. To do that, restart your mac and press Command + r to enter on recovery mode. After loaded recovery mode, go to the menu and select terminal. On terminal enter the following command line:

csrutil disbale

After that, enter reboot to enter normal initialization. Now you will be able to install Flash Player. When finished installation, do the same procedure to enter recovery mode and enable again the SIP:

csrutil enable and then reboot

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dialabrainAuthor
Inspiring
September 16, 2016

FWIW, I ready marked this as solved but, why would you have to disable SIP to install flash when one never had to do that in any beta or point release version of El Capitan with SIP enabled nor most of the dev seeds of macOS? And why did it work with the installer I linked above?

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ridhij4208356012135538
Adobe Employee
ridhij4208356012135538
Adobe Employee
September 16, 2016

Hi,

You can get the latest Flash Player from Adobe Flash Player Install for all versions ​. The issue has been fixed.

Thanks!

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ridhij4208356012135538
Adobe Employee
ridhij4208356012135538
Adobe Employee
September 13, 2016

Which browser are you using? What is the issue you are facing?

Thanks!

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dialabrainAuthor
Inspiring
September 13, 2016

I use Firefox 48.02 most of the time. I also use Chrome 53.0.2785.101 and Safari 10.0 . The issue is the installer fails with the error "Installation Failure" with no browser open.

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