System Requirements

CM/ECF uses the Java application. You will need Java 1.6 Update 31 or higher in order to access ECF. Visit to obtain or verify the version of Java.

Recently, Apple released Java for Mac OS X 10.7 or later. However, this update removes the Java plugin from all browsers on the system. After installing this update, Mac users may get an error message after logging in to CM/ECF, "Missing Plug-In." To fix this issue, Mac users will need to download the plugin and install it one time on their computer. Instructions for doing this can be found at Apple's website here.

If you are using Mac OS X 10.9 (Mavericks) with Safari, then you will not be able to file unless you follow these steps first:

  1. In the Safari/Preferences menu, pick the Security tab
  2. Click Manage Website Settings
  3. If this action is performed while logged into a CM/ECF server, the court server name will display under "Currently Open Websites"
  4. Pick "Run in Unsafe Mode" for the CM/ECF server
  5. Once the setting is applied, PDF files will display when using the doc DPF.

Java on a Mac runs as a 64-bit program, so Firefox (24.0) is still compatible with CM/ECF, but Chrome is NOT compatible.

You can find additional system requirements from the CM/ECF FAQ at .

Map & DirectionsGetting to the Byron White Courthouse

 U.S. Court of Appeals for the 10th Circuit
 U.S. District Court for Colorado
 U.S. Bankruptcy Court for Colorado
 Public parking lots and garages
 RTD Light Rail Stations