The bug affect me, too (I noticed a serious slow-down of browsing, after the upgrade). By going on " Firefox > Edit > Preferences > Advanced > Settings > Configure Proxies", i noticed that when I set "auto-detect proxy", everything works ok, while when I set "use system proxy settings", the settings of the manual proxy configurations are used (although I can't edit them, I have to choose manual configuration to be able to do that).
A workaround is to choose auto-detection of proxy. Another workaround (at least for me), is to choose manual proxy configuration, clean proxy fields, and set back to "use system proxy settings". So, user who never used proxy before should not be affected by this bug; but user who used a proxy at least once, and then set back configuration to "system proxy settings", after this upgrade will have the proxy enabled again (if the proxy, meanwhile, has been shut down, browsing the web will become impossible) -- 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/1194841 Title: Upgrade to ff22 enters proxy-settings Status in “firefox” package in Ubuntu: Confirmed Bug description: I just received the upgrade to FF22 through the update-center. After restarting firefox, I wasn't able to connect to any single web-page. Checking the 'about:config' network settings, I found out that something had changed the proxy-settings and everything was directed to '134.246...' (don't remember the whole number). After resetting all proxy values, firefox worked again as usual. Heiko ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: firefox 22.0+build2-0ubuntu0.12.04.1 Uname: Linux 3.2.30-120928-vanilla x86_64 AddonCompatCheckDisabled: False AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu17.3 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: STAC92xx Analog [STAC92xx Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: heikok 2861 F.... pulseaudio BuildID: 20130620135945 CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'PCH'/'HDA Intel PCH at 0xe2e60000 irq 47' Mixer name : 'Intel CougarPoint HDMI' Components : 'HDA:111d76e7,10280492,00100102 HDA:80862805,80860101,00100000' Controls : 30 Simple ctrls : 13 Channel: Unavailable CurrentDmesg: Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Permission denied dmesg: write failed: Broken pipe Date: Wed Jun 26 13:14:53 2013 Extensions: extensions.sqlite corrupt or missing ForcedLayersAccel: False IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite) IpRoute: default via 192.168.0.1 dev wlan0 proto static 169.254.0.0/16 dev wlan0 scope link metric 1000 192.168.0.0/24 dev wlan0 proto kernel scope link src 192.168.0.13 metric 2 Locales: extensions.sqlite corrupt or missing MarkForUpload: True MostRecentCrashID: bp-13ea1db5-8ece-432e-b626-743e32110510 PrefSources: prefs.js Profiles: Profile0 (Default) - LastVersion=22.0/20130620135945 (In use) RelatedPackageVersions: icedtea-7-plugin 1.2.3-0ubuntu0.12.04.2 rhythmbox-mozilla 2.96-0ubuntu4.2 totem-mozilla 3.0.1-0ubuntu21.1 RunningIncompatibleAddons: False SourcePackage: firefox SubmittedCrashIDs: bp-13ea1db5-8ece-432e-b626-743e32110510 bp-9044c4a6-4c68-4661-951e-83a8a2100308 bp-44c7c8ad-3f92-41bc-8ce0-9ef032100127 bp-6e7b33f2-08ce-41cc-ba5b-a83022100127 Themes: extensions.sqlite corrupt or missing UpgradeStatus: No upgrade log present (probably fresh install) WifiSyslog: dmi.bios.date: 05/24/2011 dmi.bios.vendor: Dell Inc. dmi.bios.version: A05 dmi.board.name: 01MCMN dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA05:bd05/24/2011:svnDellInc.:pnLatitudeE6320:pvr01:rvnDellInc.:rn01MCMN:rvrA01:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E6320 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1194841/+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

