Re: confirmation when closing mozilla

> I'd like to avoid the box when I close the browser
> which says
> 
> Previously tab session found
> Would you like to add the tabs, or would you like to etc.....

Prefs -> MultiZilla -> Advanced -> Tab sessions -> Skip confirmation 
for restoring a "single window tab session".

I'm not entirely sure if this will answer your question, but it's 
worth a try :).

Raj.