I'm experiencing an issue with chromes click behavior. There are cases (havnt been able to isolate the exact conditions, maybe dragging, dblclick, too quick... no idea) chrome will stop triggering the onmouseup event and the tabs wont slide anymore Tested the issue on ff and ie, which work fine. I did however notice that there is a workaround by setting the return value to false. This isnt useful on a website as this would disable any clicking action... I cant seem to find anybody else with this exact same issue. This is the page: JS Fiddle
Note 1: If the animation function is called directly (overriding any click events) no issues occur. Hence, I believe its an onmouse issue in chrome Note 2: user824294 explained he believes its got to do with dragging text. Ive sat at this issue for a couple evenings now. Help much appreciated :)