Flash Player install fails on OS X 10.11
Firefox required me to update Flash Player to version 25.0.0.127 (I had 23.0.0.185). I downloaded the installer, ran it, it downloaded the new version, began installing, then told me "Installation failed. Click FINISH for further as..."
I tried all the things it suggested without success. The instructions say to be sure Firefox/Tools/Add-ons/Plugins/Shockwave Flash says “Always activate,” but I can’t because Firefox has blocked it; it says “Never activate” and the other options are grayed out.
I deleted Applications/Adobe/Flash Player. I deleted Library/Internet Plug-ins/Flash Player.plugin and flashplayer.xpt. I think the old Flash is gone gone gone, but still I can't install the new version.
One of the forum responses said that the installer has a problem and gave a work-around, using the contents of the package, but the description of what to do didn't match what I saw as the contents of the package. When I double-clicked the .dmg, double-clicked the icon on the desktop, right-clicked the icon in the window that opened, clicked Show Package Contents, clicked Contents, click MacOS, and double-clicked Install Adobe Flash Player, the same error occurred. Still failed. A Terminal window opened, showing this:
——
Last login: Tue Mar 21 14:29:55 on console
Lap-Five:~ carhu$ /Volumes/Adobe\ Flash\ Player\ Installer/Install\ Adobe\ Flash\ Player.app/Contents/MacOS/Install\ Adobe\ Flash\ Player ; exit;
2017-03-21 14:45:57.982 Adobe Flash Player Install Manager[563:12111] Install failed with error code: 30.
logout
Saving session...
...copying shared history...
...saving history...truncating history files...
...completed.
[Process completed]
At last there was an error code (30). Oh boy! Can some expert explain this and tell me what to do?
Rebooting the computer doesn't help. Re-downloading the installer doesn't help. I get the same error with AdobeFlashPlayer_25au_a_install.dmg (downloaded 10 days ago) and AdobeFlashPlayer_25_a_install.dmg (downloaded today).
Help!
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