On Zesty the PDF's you describe in comment 1 open in Firefox's built-in PDF viewer. If you don't want that to occur go to about:config and set pdfjs.disabled to true.
-- 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/1336366 Title: In Firefox, pdf files do not open Status in firefox package in Ubuntu: New Bug description: In Firefox, clicking a link to a pdf file does not cause evince to start up & display the file's contents. A new tab opens but the Firefox home page is displayed. This used to wotk in Precise. PS I've tried installing mozplugger but it made no difference. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: firefox 30.0+build1-0ubuntu0.14.04.3 ProcVersionSignature: Ubuntu 3.13.0-30.54-generic 3.13.11.2 Uname: Linux 3.13.0-30-generic x86_64 AddonCompatCheckDisabled: False ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: john 2141 F.... pulseaudio /dev/snd/pcmC0D0p: john 2141 F...m pulseaudio BuildID: 20140608211622 Channel: Unavailable CurrentDesktop: Unity Date: Tue Jul 1 16:43:47 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 2014-04-18 (73 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) IpRoute: default via 192.168.101.1 dev wlan0 proto static 192.168.101.0/24 dev wlan0 proto kernel scope link src 192.168.101.3 metric 9 Locales: extensions.sqlite corrupt or missing PrefSources: prefs.js [Profile]/extensions/{3d7eb24f-2740-49df-8937-200b1cc08f8a}/defaults/preferences/flashblock.js [Profile]/extensions/{b9db16a4-6edc-47ec-a1f4-b86292ed211d}/defaults/preferences/prefs-dwhelper.js Profiles: Profile0 (Default) - LastVersion=30.0/20140608211622 (In use) RelatedPackageVersions: adobe-flashplugin 11.2.202.378-0trusty1 rhythmbox-mozilla 3.0.2-0ubuntu2+grilo totem-mozilla 3.10.1-1ubuntu4.1 RunningIncompatibleAddons: False SourcePackage: firefox Themes: extensions.sqlite corrupt or missing UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/12/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: V1.12 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire V5-531 dmi.board.vendor: Acer dmi.board.version: V1.12 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Acer dmi.chassis.version: V1.12 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV1.12:bd06/12/2012:svnAcer:pnAspireV5-531:pvrV1.12:rvnAcer:rnAspireV5-531:rvrV1.12:cvnAcer:ct9:cvrV1.12: dmi.product.name: Aspire V5-531 dmi.product.version: V1.12 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1336366/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

