To install Adobe Flash Player on your Asus Google Nexus 7 2013 Edition or any other device running Jelly Bean 4.0, 4.1, or 4.3 simply download Flash Player :

Flash Player - http://d-h.st/x4v

Mirror - http://dl.dropbox.com/u/8550611/install_flash_player_ics.apk

 

Next, install FireFox Beta :

FireFox Beta - https://play.google.com/store/apps/details?id=org.mozilla.firefox_beta


 

Now you should be able to view and go to flash websites with no issues at all.