That the bug is about incorrect subpixel rendering, sometimes (on the most typical screen: horizontal RGB) the fonts are rendered approximately as if the screen was horizontal BGR.
The two screenshots linked so far were created on such systems, hence they exactly represent the problem for those looking at them on horizontal RGB panels. Those who have other systems (e.g. vertical monitors) might not get the same feeling for how it looks. It's recommended to examine the second screenshot (good and bad versions under each other) with a pixel-wise magnifying software, such as xmag. The font looks so bad I just simply couldn't stand it, it really hurt my eyes, I reverted to an older firefox. In my opinion, this is a very severe bug. -- 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/1097763 Title: Firefox 18 anti-aliasing does not render correctly some text Status in “firefox” package in Ubuntu: Confirmed Bug description: Some portion of text are not rendering correctly after upgrading to Firefox 18 in Ubuntu 12.04.1 amd64. I've attached a screenshot, please notice the red text on the right. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: firefox 18.0+build1-0ubuntu0.12.04.3 ProcVersionSignature: Ubuntu 3.2.0-35.55-generic 3.2.34 Uname: Linux 3.2.0-35-generic x86_64 NonfreeKernelModules: nvidia AddonCompatCheckDisabled: False AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu15.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: shiba 2252 F.... pulseaudio /dev/snd/controlC0: shiba 2252 F.... pulseaudio BuildID: 20130107224849 CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. Card0.Amixer.info: Card hw:0 'NVidia'/'HDA NVidia at 0xfe028000 irq 22' Mixer name : 'Realtek ALC888' Components : 'HDA:10ec0888,1028020e,00100001' Controls : 39 Simple ctrls : 19 Card1.Amixer.info: Card hw:1 'NVidia_1'/'HDA NVidia at 0xfbffc000 irq 16' Mixer name : 'Nvidia GPU 15 HDMI/DP' Components : 'HDA:10de0015,10de0101,00100100' Controls : 24 Simple ctrls : 4 Channel: Unavailable Date: Wed Jan 9 14:35:43 2013 ForcedLayersAccel: False IfupdownConfig: auto lo iface lo inet loopback InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120309) IpRoute: default via 192.168.0.1 dev eth0 proto static 169.254.0.0/16 dev eth0 scope link metric 1000 192.168.0.0/24 dev eth0 proto kernel scope link src 192.168.0.102 metric 1 IwConfig: lo no wireless extensions. eth0 no wireless extensions. MarkForUpload: True PciNetwork: PrefSources: prefs.js Profiles: Profile0 (Default) - LastVersion=18.0/20130107224849 RfKill: RunningIncompatibleAddons: False SourcePackage: firefox UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/15/2007 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.0.3 dmi.board.name: 0RY206 dmi.board.vendor: Dell Inc. dmi.board.version: ��� dmi.chassis.type: 3 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnDellInc.:bvr1.0.3:bd06/15/2007:svnDellInc.:pnInspiron531:pvr00:rvnDellInc.:rn0RY206:rvr:cvnDellInc.:ct3:cvrChassisVersion: dmi.product.name: Inspiron 531 dmi.product.version: 00 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1097763/+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
