Installing License server on UNIX machines results in error "Unable to find supported browser"

Technote (troubleshooting)


Attempts to install IBM Rational License Key Server 8.1.3 on UNIX machines result in error "Unable to find supported browser".


Error prompting to check for supported browser.


When Java Plugin is not configured to Firefox or Mozilla Browser.

Diagnosing the problem

Steps to diagnose:

  1. Verify if Java is installed on the machine where license server being installed.
    If Java is not installed, download and install it.
  2. If Java is installed and you are upgrading the version of Java, then remove the old symbolic link to enable the latest version of Java to take effect.

Resolving the problem


  1. Close any instance of Mozilla Browser if open.

  2. Uninstall any previous installations of Java Plugin.

  3. Open a terminal and navigate to the browser plug-in directory.

    For example:

    If Firefox is installed in this directory /usr/lib/<Firefox installation directory>
    If Java is installed in this directory /usr/Java/<Java installation directory>

    Then open a terminal and type in the following command to navigate to the browser plug-in directory:

    /usr/lib/<Firefox installation directory>/plugin

  4. Enter the following command to create a symbolic link to the Java Plug-in for the Mozilla browser:

    ln -s /usr/Java/<Java installation directory>/lib/i386/

    Note: Only one Java Plugin can be used at a time. When you want to use a different Java plugin, or version of a plugin, remove the symbolic links to any other versions and create a fresh symbolic link to the new one.

  5. Remove old symbolic link:
    • Open a new terminal and type the following command to remove the old symbolic link:

      cd <Firefox installation directory>/plugins rm

  6. Install IBM Rational License Key Server 8.1.3.

Document information

More support for:

Rational License Key Server
Rational License Key Server

Software version:


Operating system(s):

AIX, HP-UX, Linux, Solaris

Reference #:


Modified date:


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