Running on Kubuntu 12.04.1 LTS apturl isn't working here but I found following workaround
Open the pseudo URL about:config in Firefox Create a new string (right click -> new -> string) and name it network.protocol-handler.app.apt Value /usr/bin/apturl Restart Firefox -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/910385 Title: apt: protocol is not working with Firefox in Kubuntu Status in Ubuntu: Invalid Status in “apturl” package in Ubuntu: Confirmed Status in “firefox” package in Ubuntu: Confirmed Bug description: Kubuntu is providing better Firefox integration on each release: Oxygen apparience, KDE notifications system, etc. Well then why don't make apturl-kde compatible also with Firefox and not only with Rekonq? Actually the apturl-kde package only provides apt: protocol information to Rekonq browser, and since Firefox is also very used for KDE (Kubuntu) users and Kubuntu comes with a Firefox installer by default, it also should provide this protocol handler to Firefox. Cases to reproduce this: FIRST ONE: 1) Deploy KDE menu and go to Applications->Internet->Firefox Installer to install Mozilla Firefox. 2) Now run Firefox and type 'apt:wine' in the adress bar. You receive a message from firefox about the (apt) protocol is not associated with any application. 3) Now open Rekonq browser, type 'apt:wine' in the adress bar and the installation of 'wine' package begins. SECOND CASE: 1) Deploy KDE menu and go to Applications->Internet->Firefox Installer to install Mozilla Firefox. 2) Now run Firefox and start to browse a web page which needs flash-plugin to show its contents, the Flash Player assistant will appear, and you are redirected to the Adobe's site to download Adobe Flash Plugin. 3) Select download Adobe for Linux (32-bit) + Flash Player 11 for Ubuntu (apt). This will try to install adobe-flashplayer via apt: protocol but it will fail because Firefox hasn't the handler for this protocol. 4) You have to open Rekonq browser to have a friendly way to install the flash-plugin. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: apturl-kde 0.5.1ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-7.13-generic-pae 3.2.0-rc7 Uname: Linux 3.2.0-7-generic-pae i686 ApportVersion: 1.90-0ubuntu1 Architecture: i386 CasperVersion: 1.296 Date: Sat Dec 31 15:18:15 2011 LiveMediaBuild: Kubuntu 12.04 LTS "Precise Pangolin" - Alpha i386 (20111230) ProcEnviron: LANGUAGE= LANG=es_ES.UTF-8 SHELL=/bin/bash SourcePackage: apturl UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/910385/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp