I like one of the best feature of Opera and that was Auto reloading ability. You can set a specific time in which you want the web page to be reloaded. By default, Firefox lacks this ability.
There is an Extension in Firefox that does just that. Its called ‘ReloadEvery’. It enables us to set specific time intervals in which the web page to be reloaded. Simple but effective. The functionality is available from the context menu as in Opera or via a drop down menu on the reload button.
It supports Firefox: 1.5 – 2.0.0.*
To Download ReloadEvery 2.0 Click Here

Windows 7 Tip: 





Thanks For this Download, Yeh thats cool