I ran a stacktrace and can see some odd messages in it right around when the unresponsiveness occurs and also I noticed in the stacktrace it seems to be looking for some libraries that are not found?
** Attachment added: "Firefox Stacktrace" https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1165252/+attachment/3681337/+files/firefox-strace -- 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/1165252 Title: Firefox becomes unresponsive when savings images Status in “firefox” package in Ubuntu: Confirmed Status in “firefox” package in Fedora: Unknown Bug description: What: Whenever I save images or download any files Firefox becomes temporarily unresponsive and gvfsd-metadata soars to 90% CPU consumption. Expected: Not insane use of CPU and unresponsiveness Steps to reproduce: 1. Launch firefox 2. Go to any site with images and right click save 3. Firefox becomes unresponsive 4. Run top from cli and see gvfsd-metadata consuming tons of CPU ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: firefox 19.0.2+build1-0ubuntu1 ProcVersionSignature: Ubuntu 3.8.0-16.26-generic 3.8.5 Uname: Linux 3.8.0-16-generic x86_64 AddonCompatCheckDisabled: False ApportVersion: 2.9.2-0ubuntu5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: bkerensa 2284 F.... pulseaudio BuildID: 20130308124351 Channel: Unavailable Date: Fri Apr 5 16:29:29 2013 EcryptfsInUse: Yes ForcedLayersAccel: False IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2012-10-18 (169 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5) IpRoute: default via 192.168.1.1 dev wlan0 proto static 169.254.0.0/16 dev wlan0 scope link metric 1000 192.168.1.0/24 dev wlan0 proto kernel scope link src 192.168.1.141 metric 9 MarkForUpload: True PrefSources: prefs.js [Profile]/extensions/supp...@lastpass.com/defaults/preferences/defaults.js ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash Profiles: Profile0 (Default) - LastVersion=19.0.2/20130308124351 (In use) RelatedPackageVersions: google-talkplugin 3.17.0.0-1 totem-mozilla 3.6.3-0ubuntu4 rhythmbox-mozilla 2.98-0ubuntu3 RunningIncompatibleAddons: False SourcePackage: firefox UpgradeStatus: Upgraded to raring on 2012-11-24 (132 days ago) dmi.bios.date: 06/24/2011 dmi.bios.vendor: Dell Inc. dmi.bios.version: A00 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 0VK06J dmi.board.vendor: Dell Inc. dmi.board.version: FAB1 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnDellInc.:bvrA00:bd06/24/2011:svnDellInc.:pnDellSystemInspironN411Z:pvr:rvnDellInc.:rn0VK06J:rvrFAB1:cvnDellInc.:ct8:cvr0.1: dmi.product.name: Dell System Inspiron N411Z dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1165252/+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