UI Tabs scroll to bottom instead of staying at the top of the page

UI Tabs scroll to bottom instead of staying at the top of the page

Hello,

I have a rather odd situation with Jquery tabs that only happens in Firefox and only when navigating to certain tabs: instead of opening right under the tabs where the content is, the tab opens on the bottom of the page. The setup is to have tabs within tabs, one level deep. 

For instance, when I navigate from: http://www.telcogreen.com.au/voice#section-3 to http://www.telcogreen.com.au/data#section-3. It used to happen in Chrome as well and consistently across all tabs, but I fixed it by adding a negative top margin to .ui-tabs .ui-tabs-panel

Oddly, that doesn't happen when I switch back from data#section-3 to voice#section-3 though they both have tabs inside (or it happens but jumps right back to the top). 

Anybody has any ideas? Thank you!