Url suffix not working

[eluser]Unknown[/eluser]
Hi all,

I added a url suffix, ".html" in my config.php file, but its not working. None of the links in my sites are changed to this suffix.

But one thing I noticed is that, if I give a .html suffix manually in the url, it gives no 404 error.

Did I forget something other than adding the suffix in config.php?

Thanks in advance,
Liju P M