As peke said in comment #30: It's fixed in Firefox 19 (thanks!) but it can still happen when using hardware acceleration.
I turned on layers.acceleration.force-enabled today (Firefox 20 / Ubuntu 12.10 64-bit / nvidia 310.14) and started noticing the issue again. I can see it clearly in gmail, and the strange thing is, that it's temporary: font hinting is strange when scrolling, and after you stop, in 2-3 seconds it jumps to being ok. I'm now attempting to record a screencast to show this. -- 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 The Mozilla Firefox Browser: Confirmed Status in “firefox” package in Ubuntu: Fix Committed 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/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
