Has anyone else had trouble installing the latest Flash plugin on Firefox? When I click on “Install” on the Adobe page (http://get.adobe.com/flashplayer/), it always comes up with the “additional plugins needed” bar at the top of the screen. If I click on the button to missing plugins, I (eventually) end up downloading a gp.xpi file to my disk.
WTF is gp.xpi, and how can I get Flash installed? This is on FF 3.6.6, Windows 7 64bit.