For instance, if you click a URL with the apt: protocol in Ubuntu, it will install a package from your repository:
As you can see, this doesn't work on StackExchange, despite the URL being there.
If you click a link with the about: protocol in Firefox, it can lead to inner workings of your browser:
- Browser configuration
As you can see, this doesn't work on StackExchange, either. Many websites, forums, etc. only recognize http:// URLs, but there are all kinds of other useful protocols, like news:, mailto:, aim:, etc.
However, I can work around this in a sense. Instead of linking to
apt:firefox, I can link to http://appnr.com/install/firefox, which I know will then launch the apt: link:
Is there a tinyurl-esque website or other workaround that allows creation of http:// URLs that then launch other arbitrary protocol URLs?