With the extension 4 virtuemart of JoomSef is possibile to generate the file suffix (e.g. .html) only for the page of product?

I know the topic is old, but I want to answer this question.

Yes, it is possible to generate suffix on product page of virtuemart. Actually this is native or built in in virtuemart

On virtuemart configuration..

Navigation the SEO tab, then edit the -detail to .html or any suffix you wanted..

hope this works on you..

Hi,

I'm sorry, we must have missed this question. kennethrules's answer is not related to JoomSEF's VM extension but to default VirtueMart's SEO router.
Unfortunately adding a suffix to specific page is not currently possible with VM extension for JoomSEF. We'll consider implementing this option in some future version.