Topic: [extension] BBcode - relative URLs
Regular BBcode only allows absolute links (it prepends anything not starting with scheme with http://). It works fine, as long as you never change URL of your forum or your website. This tiny extension lets users create relative links in BBcode. E.g.
[url=/index.php]Same server, absolute path[/url] [url=./index.php]Same server, same directory, different filename[/url]
The extension doesn't access database and only modifies two hooks.