◘ chrome://global/content/alerts/alert.xul
This will show you dancing firefox.Your firefox window will automatically popup anywhere at screen.
◘ chrome://browser/content/browser.xul
This will open another firefox within in a new tab.So you will have firefox within firefox.
◘ chrome://browser/content/preferences/preferences.xul
This will open firefox options dialog box in new tab.
◘ chrome://browser/content/bookmarks/bookmarksPanel.xul
This will open your firefox bookmark manager in new tab.
◘ chrome://browser/content/history/history-panel.xul
This will open your history in new tab.
◘ chrome://mozapps/content/extensions/extensions.xul?type=extensions
This will open your extensions tab in your current window .
◘ chrome://browser/content/preferences/cookies.xul
This will Open the “cookies window” inside a tab in the Firefox window.
◘ chrome://browser/content/preferences/sanitize.xul
This will Open the “Clear Private Data” window inside the current tab.
◘ chrome://browser/content/aboutDialog.xul
This will Open the “About Firefox” Dialog box inside the tab.
◘ chrome://browser/content/credits.xhtml
This will Open a scrolling list of names. The one’s who we must thank for creating Firefox