What variables are available in extension scope (like window, gBrowser)?

I know about window, gB开发者_StackOverflow社区rowser, gContextMenu and some more but what are all global variables available to Firefox extensions?

Open the JS shell in Extension Developer. Click enumerateWindows() and then chrome://browser/content/browser.xul. Then type props(window) to see all the global variables (since global variables in JavaScript are really just properties of window. Note however that there have been some reports of Extension Developer causing weird stuff to happen on Firefox 4.