'open' returns too soon for firefox

[raboof]

For some pages* the 'open' call appears to return too soon - even before the page's title can be retrieved.

This is with firefox 24.4.0 and 29.0 on linux. It appears to occur especially often when opening a specific tab on a page using jQuery tabs, by adding an anchor to the URL.

[raboof]

Setting 'pageLoadingStrategy=conservative' in the webdriver capabilities does not appear to have any effect (though I'm not sure whether that's supported for firefox at all)

[raboof]

Reported upstream as https://code.google.com/p/selenium/issues/detail?id=7325