Need to create .htaccess and GET method

Question

I want to create a url like

http://website.com/users/6663675?tab=profile

From a Clean url which has already made from index page

http://website.com/users/6663675/

Where htaccess is as

Options +FollowSymlinks
RewriteEngine on
RewriteRule ^users/([0-9a-zA-Z]+)$ index.php?page=$1&uid=$1 [QSA,NC,L]