Firefox WebDriver hangs waiting for page to load
You may want to try Firefox 27.01. I upgraded to Firefox 28.0 and it seemed to break some tests I was doing using watir-webdriver. I went back to 27.01 and the tests ran again(if you go back download the whole install package as the setup only, does not seem to let you turn off auto-update so it updates itself to 28.0).
The fails were using hover and find_element.
Found an unresolved bug: https://code.google.com/p/selenium/issues/detail?id=6955 - if you can, please provide a test case, primarily a reduced host page with minimal scripts where the problem still occurs so it can be repeated reliably and traced down.
Sometimes I question myself if Google uses their own tools at all.... they should have run into that bug ages ago considering how huge that company is.