Unable to connect to host 127.0.0.1 on port 7055 after 45000 ms. with FF version 26.0 and selenium standalone jar 2.39

Question

I am trying to connect to selenium 2.30 with FF version 26.0 installed in my AWS unix machine but I am getting below error when I start both my client which access selenium.

Answer 1

It looks like you have two different errors going on:

1. Unable to connect to host 127.0.0.1 on port 7055
2. Error: no display specified

The reason for the Unable to connect error is that the version of Selenium Server does not know how to work with the newer version of Firefox. You need to download a newer version of the Selenium Server that supports the newer version of Firefox.

The reason for the Error: no display specified error is that Firefox is being launched, but there is no X server (GUI) running on the remote host. You can use X11 forwarding to run Firefox on the remote host, but display it on your local host. On Mac OS X, you will need to download XQuartz in order to use X11 forwarding.