Switching between Chrome Developer Tools and main window full screen I'm running OS X 10.5.5 Yosemite. What's the shortcut to switch between Chrome Developer Tools (Cmd + Alt + J) and the main Chrome browser window, when both are full screen?

Cmd + ` doesn't work.

The Developer tools seems to register as another instance of Chrome running, so Application switching doesn't work either.

Thanks!
You can use Mission Control (Ctrl+Up) to drag the main Chrome window and the DevTools window to adjacent spaces, if they are not already next to each other. You can use Ctrl+Left and Ctrl+Right to cycle through spaces.

Mac users will generally keep all related spaces adjacent to each other, in a group, and use Ctrl+Left and Ctrl+Right to navigate between them.