Iframes loading on tab change in tabnavigator in firefox

[bubby248]

Hi
I had an application which is having a tab navigator with 5 tabs.Each will load an iframe with different source.For the first time, iframes are loading by taking some time to load, and later on if you change the tabs,already loaded iframes are displaying in IE(which is desired criteria).But where as in mozilla firefox,each and every tab change is loading iframes newly.I mean already loaded iframe in the tab, should not load the iframe once again, Which is like time taking process.I mean it should persist the already loaded iframe in that tab.Can you please help me out.Its working well in IE but the problem is with firefox.