Using Mac OSX 10.6.7
Safari Browser 5.0.5
When prompted to update the SlinPlayer Plugin, download was completed and as it ran, an "Installation Alert" box popup requiring Safari Browser be closed. It is closed and clicking on the "Quit Browser" button will not close and the "Installation Alert" pop up will not go away and the installation will not complete.
Upon closing the "Installation Alert" box, the installation fails.
I have uninstalled the old pop ups, re-downloaded the plug in, restarted the machine, etc... All to no avail.
Since you are having some issues while trying to install the plugin latest version, I recommend you to check this link. It will allow you to check the information about the supported web browsers.