Download portable Flash 16.0.0.305 32-64 bit Plugin

Flash Plugin for Firefox, Opera, Seamonkey....
Download Flash NPAPI 32-64 bit Plugin (13.3 MB)
Download (Pepper) Flash PPAPI 32-64 bit Plugin (13.3 MB)
Download (Pepper) Flash PPAPI Beta 32-64 bit Plugin (13.3 MB)
(included also Adobe Reader plugin 11.0.10.32 but need installed program)

Extracted once in CommonFiles\Plugins in your PortableApps folder (if test fail run latest browser installer).