Install Firefox Silently

firefox 4

Note: For more up-to-date information regarding Firefox Silent Installs visit this blog post.

A Firefox silent install comes in two flavors




The always helpful INI file allows for some minor changes to the default installation setting (which is what you get if you opt for the -ms switch).

Copy and paste the following into a text file and name it Firefox-4-Deploy.INI.

InstallDirectoryName=Mozilla Firefox
; StartMenuDirectoryName=Firefox - No longer supported in Firefox 4

Place the INI file in the same directory as your Firefox setup executable.

If you have PDQ Deploy installed, you can right click on the Firefox setup exe and select “Deploy with PDQ”.

Give your installer a name (I used Firefox 4.0.1), be sure to check “Include Entire Directory”, and then in the Parameters field, enter one of the following:




install firefox silently

NOTE: Never mix the -ms, /S, or /INI parameters. (/S performs an uninstall of Firefox).

That’s it. Save your installer and you’re now ready to deploy. Firefox 4.0 is compatible with Windows 7, Vista, and even XP SP3. This same installer is also good with32 or 64 bit versions of Vista and Windows 7.

quickly install firefox

Note that the StartMenuDirectoryName option is no longer supported in Firefox 4.

Firefox has made it fairly easy to deploy silently to all of your computers, but I’d like to see a more robust line up of customizations for the INI file. The ability to make (or decline) default browser,  accept or reject the auto import exisiting IE bookmarks, homepage, etc.

As demonstrated on this blog, Internet Explorer has made fantastic strides with regard to their IE customization wizard available from the Internet Explorer Administration Kit (IEAK).

If you have applications that you’d like us to demonstrate installing silently please let us know.

Install software silently with PDQ Deploy. Get your FREE copy today.