I've just installed Mac OS X Snow Leopard, version 10.6.8 and am getting Pop up Blocked messages even though it is not marked in my Safari version 10.6.8 and am getting 'Popup Blocked' messages when trying to access videos. This even though I don't have

If you've installed Adobe Flash, there should be a Flash Player Preference in System Preferences. Open that preference, click the Advanced button and then Check Now for updates. The current version is 13.0.0.201.

I suspect it's being blocked because it's so old and represents a real security risk. Get a direct download of the latest Flash Player from here; pick the DMG installer for Mac OS X and run it.

RusseDE2 wrote:

I picked the DMG installer for Mac OS X and tried downloading the latest Flash Player; but received again on Step 3 of 3 Blocked Plug In. I show alot of downloads for Flash Player, should I be placong these in trash?

There shouldn't be any "steps" if you've downloaded and run the DMG installer because it's a complete installer and either runs or doesn't in my experience. I've run into the Step 3 failure myself but only when the download and installation is being done through Adobe's Get Flash Player website, which using the DMG file avoids. You do need to have all browsers and System Preferences closed when you run it though. And you can delete all the other Flash downloads.

RusseDE2 wrote:

...Any other recommendations?...

Yes. The "install_flash_player_osx.dmg" is meant for System Administrators dealing with multiple computer installations. The "install_flash_player_13_osx.dmg" is meant for people like us with just one Mac at a time, so it sounds like the "steps" were coming from the System Administrator setup.

Using just the install_flash_player_13_osx.dmg, double-click on that, then run Install Adobe Flash Player.app and see what happens.