Keyboard shortcut conflict between Google Chrome and Facetime [duplicate]

Is there any way to disable command+Q for quitting apps?

I tried adding this menuitem to the "Keyboard Shortcuts" preference pane (as suggested here), and remapping it to command+option+Q (slightly harder to hit), and the menu item changed to show this, but command+Q still causes the app to quit.

I'm using OS X 10.7, but I'd happily upgrade to 10.8 if it fixed this.

The app I really want this for is Firefox, but if there was a solution that disabled command+Q for every app, that would be fine, too.

Go to System Preferences, then Keyboard. Select Shortcuts. On the left pane, find Accessibility. Now on the right pane enable Invert colors and then click on the shortcut box to reassign the shortcut to Cmd+Q.

That's it. Now when you press Cmd+Q the colors of the screen will be inverted. Press it again to go back to normal colors. No more accidentally quitting applications (like closing over two hundred tabs on Firefox when trying to use Cmd+a or three dozen pdfs on Preview when trying to use Cmd+tab; last two things I did, never again.)

P.S. Whoever thought it was a good idea to use Cmd+Q to quit applications should go back to usability school.

There's also a nice plugin that you can use called Always Ask, which forces a prompt dialog before leaving Firefox.

I have found a way to do this without having to change your volume or stuff like that when you press command+Q.

go to system preferences -> keyboard -> mission control -> "do not disturb".

Then just click the box and change it to: command+Q.

Sorry for digging up such old post but this idea may be useful.

In System Preferences - Keyboard create a new shortcut for the application you want to prevent quit. Search for the title of the quit command in the application's menu and enter the same exact as a Menu Title for the shortcut, then give a different shortcut.

Indeed, you don't have this issue with all applications but only browser and maybe one or two other apps.

Using KeyRemap4MacBook, you could add this to private.xml:

<item>
  <name>disable_command_q</name>
  <identifier>disable_command_q</identifier>
  <autogen>__KeyToKey__ KeyCode::Q, VK_COMMAND | ModifierFlag::NONE, KeyCode::VK_NONE</autogen>
  <autogen>__KeyToKey__ KeyCode::Q, VK_COMMAND | VK_SHIFT | ModifierFlag::NONE, KeyCode::Q, ModifierFlag::COMMAND_L</autogen>
</item>

Without | ModifierFlag::NONE the first autogen element would also disable for example ⌥⌘Q. The second autogen element changes ⇧⌘Q to ⌘Q.

There are also predefined settings that make sending ⌘Q require holding ⌘Q or pressing ⌘Q twice:

They are defined in custom_shortcuts.xml:

<item>
  <name>Hold Command+Q to Quit Application</name>
  <appendix>(You can adjust the threshold time of holding by</appendix>
  <appendix>"[Holding Key to Key] Holding Threshold" in Key Repeat tab.)</appendix>
  <identifier>remap.holdcommandQ</identifier>
  <autogen>__HoldingKeyToKey__ KeyCode::Q, VK_COMMAND | ModifierFlag::NONE, KeyCode::VK_NONE, KeyCode::Q, VK_COMMAND, Option::NOREPEAT</autogen>
</item>
<item>
  <name>Press Command+Q twice to Quit Application</name>
  <identifier>remap.doublepresscommandQ</identifier>
  <autogen>__DoublePressModifier__ KeyCode::Q, VK_COMMAND | ModifierFlag::NONE,
    KeyCode::VK_NONE,
    KeyCode::Q, VK_COMMAND
  </autogen>
</item>

QBlocker

QBlocker is a free and open source app by to solve this issue by requiring a user to hold down CMD+Q to quit all apps or just certain ones.