How to open a new tab using Selenium WebDriver?

Question

How to open a new tab in the existing Firefox browser using Selenium WebDriver (a.k.a. Selenium 2)?

Answer 1

Selenium doesn't support opening new tabs, it only supports opening new windows. For all intents an purposes a new window is functionally equivalent to a new tab anyway.

There are various hacks to work around the issue but they are going to cause you other problems in the long run.