[Jaunty] Firefox can use apt://

Some URLs accessed by Firefox is used to install packages for Linux. For example the URL to add the canonical cloud client.

apt://ubuntuone-client?refresh=yes

I get the following message.

Firefox doesn't know how to open this address, because the protocol (apt) isn't associated with any program.

Solution.

I started synaptic and added the package apturl, searched for Ubufox extension for Firefox. Restarted Firefox and now I can access the URL.