Hi I solved it by myself, When I get the window of "choose a programme to open the apturl link", I navigate to /usr/bin/apturl-kde. I think this bug can be solved with the above mentione two steps namely 1.configuring the firefox 2. select /usr/bin/apturl-kde to open the link
** Changed in: firefox (Ubuntu) Status: Confirmed => Fix Committed ** Changed in: firefox (Ubuntu) Status: Fix Committed => Confirmed ** Changed in: firefox (Ubuntu) Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/910385 Title: apt: protocol is not working with Firefox in Kubuntu To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/910385/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs