Still happening. Freshly installed Kubuntu 12.04 64bit. Firefox 18.0.2.
Tried adding to about:config a new entry "network.protocol-handler.app.apt" with string "/usr/bin/apturl"
Still receive error message: "Firefox doesn't know how to open this address, because the protocol (apt) isn't associated with any program."
Still happening. Freshly installed Kubuntu 12.04 64bit. Firefox 18.0.2.
Tried adding to about:config a new entry "network. protocol- handler. app.apt" with string "/usr/bin/apturl"
Still receive error message: "Firefox doesn't know how to open this address, because the protocol (apt) isn't associated with any program."