selenium: selenium-html-runner throws BindException

Meta -

OS: Ubuntu 16.04

Selenium Version: 3.0.0-beta3

Browser: Firefox

Browser Version: 48.0

Expected Behavior -

Seeing new Firefox opening and browsing to www.google.com

Actual Behavior -

Firefox opens and then closes immediately with following error message.

Steps to reproduce -

With latest geckodriver and simple IDE test.

vainiju@vainiju-ThinkPad-P50 ~/selenium-html
» l
yhteensä 19M
-rw-r--r-- 1 vainiju vainiju  763 2016-09-02 12:41 simple-ide-generated-test.html
-rwxrwxr-x 1 vainiju vainiju 3.7M 2016-08-03 01:49 geckodriver
-rw-r----- 1 vainiju vainiju  15M 2016-09-02 01:29 selenium-html-runner-3.0.0-beta3.jar

Executing selenium-html-runner causes following error.

vainiju@vainiju-ThinkPad-P50 ~/selenium-html 
» /opt/tools/oracle-jdk/jdk1.8.0_91/bin/java -jar selenium-html-runner-3.0.0-beta3.jar /tmp/output-selenium simple-ide-generated-test.html http://www.google.com false *firefox

Sep 02, 2016 1:37:41 PM org.openqa.selenium.remote.ProtocolHandshake createSession
INFO: Attempting bi-dialect session, assuming Postel's Law holds true on the remote end
1472812662277   Marionette  INFO    Listening on port 42734
1472812663347   Marionette  INFO    startBrowser d26740c7-6738-4f90-8628-dd5fecdbf346
1472812663355   Marionette  INFO    sendAsync d26740c7-6738-4f90-8628-dd5fecdbf346

(process:7296): GLib-CRITICAL **: g_path_get_basename: assertion 'file_name != NULL' failed
Sep 02, 2016 1:37:43 PM org.openqa.selenium.remote.ProtocolHandshake createSession
INFO: Detected dialect: W3C
2016-09-02 13:37:43.549:INFO::main: Logging initialized @2243ms
2016-09-02 13:37:43.577:INFO:osjs.Server:main: jetty-9.2.z-SNAPSHOT
2016-09-02 13:37:43.590:INFO:osjs.ServerConnector:main: Started ServerConnector@1ddf84b8{HTTP/1.1}{0.0.0.0:7330}
2016-09-02 13:37:43.591:INFO:osjs.Server:main: Started @2284ms
2016-09-02 13:37:43.592:INFO:osjs.ServerConnector:main: Stopped ServerConnector@1ddf84b8{HTTP/1.1}{0.0.0.0:7330}
[Child 7296] ###!!! ABORT: Aborting on channel error.: file /build/firefox-6p7T67/firefox-48.0+build2/ipc/glue/MessageChannel.cpp, line 2046
[Child 7296] ###!!! ABORT: Aborting on channel error.: file /build/firefox-6p7T67/firefox-48.0+build2/ipc/glue/MessageChannel.cpp, line 2046
Sep 02, 2016 1:37:43 PM org.openqa.selenium.server.htmlrunner.HTMLLauncher mainInt
WARNING: Test of browser failed: *firefox
java.io.IOException: java.lang.RuntimeException: java.net.BindException: Osoite on jo käytössä
    at org.openqa.selenium.server.htmlrunner.HTMLLauncher.determineSuiteUrl(HTMLLauncher.java:188)
    at org.openqa.selenium.server.htmlrunner.HTMLLauncher.runHTMLSuite(HTMLLauncher.java:120)
    at org.openqa.selenium.server.htmlrunner.HTMLLauncher.runHTMLSuite(HTMLLauncher.java:85)
    at org.openqa.selenium.server.htmlrunner.HTMLLauncher.mainInt(HTMLLauncher.java:239)
    at org.openqa.selenium.server.htmlrunner.HTMLLauncher.main(HTMLLauncher.java:251)
Caused by: java.lang.RuntimeException: java.net.BindException: Osoite on jo käytössä
    at org.openqa.selenium.net.PortProber.pollPort(PortProber.java:154)
    at org.openqa.selenium.net.PortProber.pollPort(PortProber.java:137)
    at org.openqa.selenium.server.htmlrunner.HTMLLauncher.determineSuiteUrl(HTMLLauncher.java:182)
    ... 4 more
Caused by: java.net.BindException: Osoite on jo käytössä
    at java.net.PlainSocketImpl.socketBind(Native Method)
    at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:387)
    at java.net.Socket.bind(Socket.java:644)
    at org.openqa.selenium.net.PortProber.pollPort(PortProber.java:146)
    ... 6 more