thanks for your replying. that is surely not a security issue. switching the window back and forth by clicking firefox window can solve this problem . I think that is firefox problem. some other software also has a little bugs. such as : intellgence pinyin, file Explore, document viewer (default pdf reader in OS). they are not deadly, just need to be cafurelly, use them with regular way.
one serious bug is still in ubuntu 22.04 —— "programming is not responding" 。 clicking "Force Quit " or "wait" buttons cannot solve the problem. kill process through "system monitor" is also not okay. the last thing I can do is rebootint the OS. ** Changed in: firefox (Ubuntu) Status: Incomplete => Confirmed -- 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/1971221 Title: [nvidia] firefox is flashing Status in firefox package in Ubuntu: Confirmed Bug description: when firefox window behind other APP windows, it is flashing. ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: xorg 1:7.7+23ubuntu2 ProcVersionSignature: Ubuntu 5.15.0-27.28-generic 5.15.30 Uname: Linux 5.15.0-27-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia .proc.driver.nvidia.capabilities.gpu0: Error: path was not a regular file. .proc.driver.nvidia.capabilities.mig: Error: path was not a regular file. .proc.driver.nvidia.gpus.0000.01.00.0: Error: path was not a regular file. .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.suspend: suspend hibernate resume .proc.driver.nvidia.suspend_depth: default modeset uvm .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86_64 Kernel Module 510.60.02 Wed Mar 16 11:24:05 UTC 2022 GCC version: ApportVersion: 2.20.11-0ubuntu82 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: pass CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Tue May 3 11:53:34 2022 DistUpgraded: Fresh install DistroCodename: jammy DistroVariant: ubuntu GraphicsCard: NVIDIA Corporation GP104 [GeForce GTX 1080] [10de:1b80] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company GP104 [GeForce GTX 1080] [103c:82fb] InstallationDate: Installed on 2022-05-01 (1 days ago) InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 (20220419) MachineType: ASUS System Product Name ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-27-generic root=UUID=ff0f1b3b-e57d-46bf-817b-a2bf7bd47098 ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/01/2022 dmi.bios.release: 14.4 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1404 dmi.board.asset.tag: Default string dmi.board.name: ROG STRIX Z690-A GAMING WIFI D4 dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1404:bd04/01/2022:br14.4:svnASUS:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnROGSTRIXZ690-AGAMINGWIFID4:rvrRev1.xx:cvnDefaultstring:ct3:cvrDefaultstring:skuSKU: dmi.product.family: To be filled by O.E.M. dmi.product.name: System Product Name dmi.product.sku: SKU dmi.product.version: System Version dmi.sys.vendor: ASUS version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.110-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 22.0.1-1ubuntu2 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A version.xserver-xorg-core: xserver-xorg-core 2:21.1.3-2ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2build3 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20210115-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-2build1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1971221/+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