title: Protractor - MouseMove not supported for Firefox
body: <p>I am new to protractor and selenium. I am trying to simulate the mouse hover action on a button and read the values like mouse pointer value and background colors. I am using mousemove and it works fine in Chrome but not when I set the browser to Firefox. I believe the webdriver is not supporting this for some reason.</p>
  
  <pre><code>it('Mouse cursor should change to hand pointer', function() {   
    browser.get('URL');
    var search = element(by.buttonText('SEARCH'));
    browser.actions().mouseMove(search).perform();
    expect(search.getCssValue("cursor")).toEqual('pointer');
  });
  </code></pre>
  
  <p>I am getting the following error for Firefox: </p>
  
  <pre><code>Message:
   Failed: mouseMoveTo
   Build info: version: '3.1.0',                 
   java.version: '1.8.0_121'
   Driver info: driver.version: RemoteWebDriver  
  Stack:  
   UnsupportedOperationError: mouseMoveTo
  </code></pre>
  
  <p>Any help would be appreciated.</p>