while the title for this thread is definitely incorrect - when pulling the gamepad example at
http://haxeflixel.com/demos/GamepadTest/

I can successfully connect a xbox360 controller and have it detected using firefox on android, chrome on android and desktop - but I cannot successfully detect a gamepad on desktop firefox.

As another thread indicated, the gamepad events are provided to haxeflixel through openfl.

Sounds like the issue was on chromium on linux, I wonder if using stardard chrome on windows or android chrome or firefox might've worked.

I have yet to see the demo work with any controller on desktop firefox.