note 83449 added to book.session

I have noticed a session data loss after visiting to a different site. My site has PAYPAL payment option. I have $_SESSION["submit_data"] set properly when I am on my site. But when I return to my site after PAYPAL payment, these SESSION variable is not set. I noticed all my SESSION Info are lost in OPERA and NETSCAPE NAVIGATOR. But FireFox and Internet Explorer Holds Data properly. I used COOKIE also, made a try.. COOKIE DATA ALSO LOST. If we visit different sites leaving the SESSION Originating site I think we looses SESSION Variables. Am I correct ??? Bikram ---- Server IP: 59.162.86.33 Probable Submitter: 117.194.64.32 ---- Manual Page -- http://www.php.net/manual/en/book.session.php Edit -- https://master.php.net/note/edit/83449 Del: integrated -- https://master.php.net/note/delete/83449/integrated Del: useless -- https://master.php.net/note/delete/83449/useless Del: bad code -- https://master.php.net/note/delete/83449/bad+code Del: spam -- https://master.php.net/note/delete/83449/spam Del: non-english -- https://master.php.net/note/delete/83449/non-english Del: in docs -- https://master.php.net/note/delete/83449/in+docs Del: other reasons-- https://master.php.net/note/delete/83449 Reject -- https://master.php.net/note/reject/83449 Search -- https://master.php.net/manage/user-notes.php