Can't install unity web player on mac

Can’t install unity web player on mac.

I’ve tried to play on gamejolt and it says

A newer version of Unity Web Player is required, but the auto-update download failed. Was trying to download

the game:

Nothing worked for me, and I gave up on it for a couple months. I dug into it again tonight and found the answer, for Mac users.

Issuing the following command, in the Terminal, fixed the problem for me.

sudo chmod -R 777 /Library/Internet\ Plug-Ins/Unity\ Web\ Player.plugin/

The details of what the problem is and why this works can be found in this Unity Forum post.

UPDATE May 23, 2014: Unity QA responded to my bug report and said they made changes to the Mac OS X plug-in to address the problem. They will be included in a future version of the plug-in and the problem should no longer occur after that.

Works fine for me on Chrome and Safari as of about 4 days ago,

OSX 10.9.2

Maybe you should upgrade your OSX.