At YouTube's HTML5 video player, http://www.youtube.com/watch?v=JCUdy1nUqrg for example, if you go into fullscreen mode and then hit the hardware volume buttons on your laptop, the "Press ESC to leave Full-screen mode" UI returns. That UI should not return after initially disappearing. Tested on latest nightly build on a Thinkpad X1 laptop running Win 7 at this URL http://www.youtube.com/watch?v=JCUdy1nUqrg

Guess we need to add those keys to the whitelist...

The changes to the whitelist should be made in layout/base/nsPresShell.cpp within the |IsFullScreenAndRestrictedKeyEvent| function. We'll need to find out what the keyCode is for the hardware volume buttons.

http://pearce.org.nz/full-screen/ displays keycode of pressed keys. On my Win7 Lenovo T510 mute is 173, volume-down is 174, volume up is 175. I'm not sure if the same key codes are used on other platforms or even other hardware vendors on windows.

I have the same key codes (although my laptop is very similar: Lenovo W520 Win7)

(In reply to Chris Pearce (:cpearce) (Mozilla Corporation) from comment #3) > http://pearce.org.nz/full-screen/ displays keycode of pressed keys. On my > Win7 Lenovo T510 mute is 173, volume-down is 174, volume up is 175. I'm not > sure if the same key codes are used on other platforms or even other > hardware vendors on windows. Some on my old Samsung NC10 netbook on Windows XP.

(In reply to Dão Gottwald [:dao] from comment #5) > (In reply to Chris Pearce (:cpearce) (Mozilla Corporation) from comment #3) > > http://pearce.org.nz/full-screen/ displays keycode of pressed keys. On my > > Win7 Lenovo T510 mute is 173, volume-down is 174, volume up is 175. I'm not > > sure if the same key codes are used on other platforms or even other > > hardware vendors on windows. > > Some on my old Samsung NC10 netbook on Windows XP. s/Some/Same/

The hardware volume control keys don't make it through to content on MacOSX and on Fedora Core 15 Linux. I'm not sure about other Linux distros/window managers, so I'll assume this is windows-only for now.

Don't show the full-screen warning when pressing media volume keys on Windows.

(In reply to Chris Pearce (:cpearce) (Mozilla Corporation) from comment #8) > The hardware volume control keys don't make it through to content on MacOSX > and on Fedora Core 15 Linux. Yeah, I haven't managed to get events from volume control keys on Fedora.

Verified as fixed using a Windows 7 64-bit MacBook Air with: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:11.0) Gecko/20100101 Firefox/11.0 The "Press ESC to leave Full-screen mode" message is not displayed anymore when changing the volume from the keyboard.

Also verified as fixed using a Windows 7 64-bit HP Compaq 6715b with: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:11.0) Gecko/20100101 Firefox/11.0 beta 3. I changed volume by using the specific volume keys from this laptop but the issue didn't reproduce anymore.