From: Joel Pearson <lists@...>
Date: 2013-04-29T18:24:35+09:00
Subject: Re: Issue with Selenium-webdriver

It means you timed out trying to access the URL.
In your given case, that would be because "https://example.com/" doesn't 
exist.

This is often a firewall issue or the site being unavailable at the time 
the page request was made.

If it's started happening after an update, it could also be that you're 
mismatching versions of Firefox and Webdriver.

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