It's clear that either none is paying attention to this or none is able to apply an existing fix. The fix is to edit /usr/share/applications/mimeinfo.cache (as root) and to make it like this:
inode/directory=kde4-dolphin.desktop; That's it. -- 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/1294689 Title: Firefox doesn't use dolphin to open download directory Status in firefox package in Ubuntu: Confirmed Bug description: Under KDE, if from the download screen I ask to open the folder, I get a strange application, called files, to be spawned to browse the directory, instead of the more natural Dolphin. I am using Kubuntu. How to reproduce: 1. Start Firefox under KDE 2. Download any file from the Internet 3. Open the Download page 4. Within the downloaded file entry, click on the small "folder" icon on the right and wait a little bit Expected result: Dolphin file system browser to be started Actual result: A programm called "files" from GNOME environment is started. Most of the icons in the program are missing as I am running KDE from Kubuntu. This happens 100% of the times. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: firefox 28.0+build2-0ubuntu0.13.10.1 ProcVersionSignature: Ubuntu 3.11.0-18.32-generic 3.11.10.4 Uname: Linux 3.11.0-18-generic x86_64 AddonCompatCheckDisabled: False ApportVersion: 2.12.5-0ubuntu2.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: enzo 2229 F.... pulseaudio /dev/snd/controlC0: enzo 2229 F.... pulseaudio BuildID: 20140317233501 Channel: Unavailable Date: Wed Mar 19 15:33:07 2014 Extensions: extensions.sqlite corrupt or missing ForcedLayersAccel: False IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite) InstallationDate: Installed on 2014-03-16 (3 days ago) InstallationMedia: Kubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) IpRoute: default via 192.168.254.254 dev eth0 proto static 192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1 192.168.254.0/24 dev eth0 proto kernel scope link src 192.168.254.42 metric 1 IwConfig: eth0 no wireless extensions. lo no wireless extensions. virbr0 no wireless extensions. Locales: extensions.sqlite corrupt or missing MarkForUpload: True Plugins: Shockwave Flash - /usr/lib/flashplugin-installer/libflashplayer.so PrefSources: prefs.js Profiles: Profile0 (Default) - LastVersion=28.0/20140317233501 (In use) RfKill: RunningIncompatibleAddons: False SourcePackage: firefox Themes: extensions.sqlite corrupt or missing UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/06/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0803 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: P6X58D-E dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0803:bd08/06/2012:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP6X58D-E:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1294689/+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