List of command line arguments (incomplete)

See also the external links at the bottom of this article.

Command	Result	Example
-profile "<path>"	Starts with profile located at the given path. Does not apply to Mozilla Suite/SeaMonkey 1.x	firefox.exe -profile "E:\myprofile"
-P "<profile name>"	Starts with a given profile name (profile name is case sensitive).	firefox.exe -P "Joel User"
<url>	Launches the application and opens the given URL(s).	firefox.exe "www.mozilla.org" "www.mozillazine.org"
-safe-mode	Launches the application with extensions disabled and the default theme. Does not apply to Mozilla Suite/SeaMonkey 1.x	firefox.exe -safe-mode
-no-remote	Enables running multiple instances of the application with different profiles; [1] used with -P Does not apply to Mozilla Suite/SeaMonkey 1.x	firefox.exe -no-remote
-height <value>	Sets height of the startup window to <value>.	firefox.exe -height 600
-width <value>	Sets width of the startup window to <value>.	firefox.exe -width 800
-ProfileManager	Starts with Profile Manager.	firefox.exe -ProfileManager
-CreateProfile	Create a new profile	firefox -CreateProfile test
-migration	Starts the application with the Import Wizard Does not apply to Mozilla Suite/SeaMonkey 1.x	firefox -migration
-console	Starts the application with a debugging console.	firefox.exe -console
-jsconsole	Starts with the Error Console (Javascript Console).	firefox.exe -jsconsole
-inspector <url>	Starts with the DOM Inspector.	firefox.exe -inspector http://www.google.com/
-chrome <url>	Loads the specified chrome.	firefox.exe -chrome chrome://inspector/content/inspector.xul
-new-window <url>	Loads a URL in a new browser window.	firefox.exe -new-window <url>
-new-tab <url>	Loads a URL in a new tab.	firefox.exe -new-tab <url>
-install-global-extension "<path>"	Installs an extension globally.	firefox.exe -install-global-extension "C:\Temp\extension-file.xpi"
-purgecaches	Purges the caches for internal JavaScript and extensions. Applies since Firefox 4	firefox.exe -purgecaches