watir with ruby on ubuntu not connecting

Question

I get the following error:

unable to obtain stable firefox connection in 60 seconds (127.0.0.1:7055)

I am trying to run Rspec with watir, the ruby gem, on an Ubuntu box.

But I keep getting this error on Firefox 42.

I'm not sure what I need to do to resolve this networking issue.

Read the following but I am on a way later version of Firefox:

unable to obtain stable firefox connection in 60 seconds (127.0.0.1:7055)

Unable to obtain stable firefox connection in 60 seconds (127.0.0.1:7055)

gem update selenium-webdriver

Answer 1

Read the following but I am on a way later version of Firefox:

At the first link it says:

[Update - this can (was for me) still be a fix for this issue in 2015 |mdurrant|]

And:

Important note: The selenium-webdriver gem is updated, and a new version released, for every subsequent version of Firefox. Presently, version 2.25.0 is needed to support Firefox 15.

But your solutions was:

gem update selenium-webdriver

...which is not my interpretation of those posts. My interpretation is NOT that you always need the latest selenium for whatever version of Firefox you are using--rather they are trying to tell you that you need to match a selenium version to a Firefox version.

And in fact, there is an SO question titled:

Where can I find a definitive Selenium WebDriver to Firefox Compatibility Matrix ?

So, it looks to me like the latest version of selenium does not support Firefox 42. You need to install an earlier version of Firefox.