Public bug reported: i dual booted ubuntu 20.04 a week ago. but just after 2-3 days, firefox started lagging and a lot. by lagging , i mean when i open a new tab it opens but doesn't show on the screen that it has. when changing opened tabs it doesn't show till i change 2 or more tabs (sometimes it doesn't even do that). when i type something in address bar it doesn't show anything until i press enter and it shows everything on that website. same problem with scrolling. result of neofetch:
`:+ssssssssssssssssss+:` ------------- -+ssssssssssssssssssyyssss+- OS: Ubuntu 20.04.1 LTS x86_64 .ossssssssssssssssssdMMMNysssso. Host: Inspiron 3558 /ssssssssssshdmmNNmmyNMMMMhssssss/ Kernel: 5.4.0-58-generic +ssssssssshmydMMMMMMMNddddyssssssss+ Uptime: 52 mins /sssssssshNMMMyhhyyyyhmNMMMNhssssssss/ Packages: 1808 (dpkg), 6 (flatpak), .ssssssssdMMMNhsssssssssshNMMMdssssssss. Shell: bash 5.0.17 +sssshhhyNMMNyssssssssssssyNMMMysssssss+ Resolution: 1366x768 ossyNMMMNyMMhsssssssssssssshmmmhssssssso DE: GNOME ossyNMMMNyMMhsssssssssssssshmmmhssssssso WM: Mutter +sssshhhyNMMNyssssssssssssyNMMMysssssss+ WM Theme: Adwaita .ssssssssdMMMNhsssssssssshNMMMdssssssss. Theme: Yaru [GTK2/3] /sssssssshNMMMyhhyyyyhdNMMMNhssssssss/ Icons: Yaru [GTK2/3] +sssssssssdmydMMMMMMMMddddyssssssss+ Terminal: gnome-terminal /ssssssssssshdmNNNNmyNMMMMhssssss/ CPU: Intel i3-5005U (4) @ 1.900GHz .ossssssssssssssssssdMMMNysssso. GPU: Intel HD Graphics 5500 -+sssssssssssssssssyyyssss+- Memory: 3031MiB / 11891MiB ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: firefox 84.0+build3-0ubuntu0.20.04.1 ProcVersionSignature: Ubuntu 5.4.0-58.64-generic 5.4.73 Uname: Linux 5.4.0-58-generic x86_64 AddonCompatCheckDisabled: False ApportVersion: 2.20.11-0ubuntu27.14 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: schnyd3r 2786 F.... pulseaudio /dev/snd/controlC0: schnyd3r 2786 F.... pulseaudio BuildID: 20201211215739 CasperMD5CheckResult: skip Channel: Unavailable CurrentDesktop: ubuntu:GNOME Date: Sat Jan 2 11:49:27 2021 DefaultProfileExtensions: extensions.sqlite corrupt or missing DefaultProfileIncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite) DefaultProfileLocales: extensions.sqlite corrupt or missing DefaultProfilePrefErrors: Unexpected character ',' before close parenthesis @ /usr/lib/firefox/omni.ja:greprefs.js:354 DefaultProfileThemes: extensions.sqlite corrupt or missing ForcedLayersAccel: False InstallationDate: Installed on 2020-12-30 (2 days ago) InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731) IpRoute: default via 192.168.42.129 dev usb0 proto dhcp metric 100 default via 192.168.1.1 dev wlp6s0 proto dhcp metric 600 169.254.0.0/16 dev wlp6s0 scope link metric 1000 192.168.1.0/24 dev wlp6s0 proto kernel scope link src 192.168.1.39 metric 600 192.168.42.0/24 dev usb0 proto kernel scope link src 192.168.42.61 metric 100 Profile0Extensions: extensions.sqlite corrupt or missing Profile0IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite) Profile0Locales: extensions.sqlite corrupt or missing Profile0PrefErrors: Unexpected character ',' before close parenthesis @ /usr/lib/firefox/omni.ja:greprefs.js:354 Profile0PrefSources: prefs.js Profile0Themes: extensions.sqlite corrupt or missing Profiles: Profile1 (Default) - LastVersion=None/None (Out of date) Profile0 - LastVersion=84.0/20201211215739 (In use) RunningIncompatibleAddons: False SourcePackage: firefox UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2020 dmi.bios.vendor: Dell Inc. dmi.bios.version: A21 dmi.board.name: 0XCR91 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA21:bd07/09/2020:svnDellInc.:pnInspiron3558:pvr:rvnDellInc.:rn0XCR91:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: Inspiron 3558 dmi.product.sku: 06B0 dmi.sys.vendor: Dell Inc. ** Affects: firefox (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug focal wayland-session -- 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/1909846 Title: firefox 84.0 lagging a lot Status in firefox package in Ubuntu: New Bug description: i dual booted ubuntu 20.04 a week ago. but just after 2-3 days, firefox started lagging and a lot. by lagging , i mean when i open a new tab it opens but doesn't show on the screen that it has. when changing opened tabs it doesn't show till i change 2 or more tabs (sometimes it doesn't even do that). when i type something in address bar it doesn't show anything until i press enter and it shows everything on that website. same problem with scrolling. result of neofetch: `:+ssssssssssssssssss+:` ------------- -+ssssssssssssssssssyyssss+- OS: Ubuntu 20.04.1 LTS x86_64 .ossssssssssssssssssdMMMNysssso. Host: Inspiron 3558 /ssssssssssshdmmNNmmyNMMMMhssssss/ Kernel: 5.4.0-58-generic +ssssssssshmydMMMMMMMNddddyssssssss+ Uptime: 52 mins /sssssssshNMMMyhhyyyyhmNMMMNhssssssss/ Packages: 1808 (dpkg), 6 (flatpak), .ssssssssdMMMNhsssssssssshNMMMdssssssss. Shell: bash 5.0.17 +sssshhhyNMMNyssssssssssssyNMMMysssssss+ Resolution: 1366x768 ossyNMMMNyMMhsssssssssssssshmmmhssssssso DE: GNOME ossyNMMMNyMMhsssssssssssssshmmmhssssssso WM: Mutter +sssshhhyNMMNyssssssssssssyNMMMysssssss+ WM Theme: Adwaita .ssssssssdMMMNhsssssssssshNMMMdssssssss. Theme: Yaru [GTK2/3] /sssssssshNMMMyhhyyyyhdNMMMNhssssssss/ Icons: Yaru [GTK2/3] +sssssssssdmydMMMMMMMMddddyssssssss+ Terminal: gnome-terminal /ssssssssssshdmNNNNmyNMMMMhssssss/ CPU: Intel i3-5005U (4) @ 1.900GHz .ossssssssssssssssssdMMMNysssso. GPU: Intel HD Graphics 5500 -+sssssssssssssssssyyyssss+- Memory: 3031MiB / 11891MiB ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: firefox 84.0+build3-0ubuntu0.20.04.1 ProcVersionSignature: Ubuntu 5.4.0-58.64-generic 5.4.73 Uname: Linux 5.4.0-58-generic x86_64 AddonCompatCheckDisabled: False ApportVersion: 2.20.11-0ubuntu27.14 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: schnyd3r 2786 F.... pulseaudio /dev/snd/controlC0: schnyd3r 2786 F.... pulseaudio BuildID: 20201211215739 CasperMD5CheckResult: skip Channel: Unavailable CurrentDesktop: ubuntu:GNOME Date: Sat Jan 2 11:49:27 2021 DefaultProfileExtensions: extensions.sqlite corrupt or missing DefaultProfileIncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite) DefaultProfileLocales: extensions.sqlite corrupt or missing DefaultProfilePrefErrors: Unexpected character ',' before close parenthesis @ /usr/lib/firefox/omni.ja:greprefs.js:354 DefaultProfileThemes: extensions.sqlite corrupt or missing ForcedLayersAccel: False InstallationDate: Installed on 2020-12-30 (2 days ago) InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731) IpRoute: default via 192.168.42.129 dev usb0 proto dhcp metric 100 default via 192.168.1.1 dev wlp6s0 proto dhcp metric 600 169.254.0.0/16 dev wlp6s0 scope link metric 1000 192.168.1.0/24 dev wlp6s0 proto kernel scope link src 192.168.1.39 metric 600 192.168.42.0/24 dev usb0 proto kernel scope link src 192.168.42.61 metric 100 Profile0Extensions: extensions.sqlite corrupt or missing Profile0IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite) Profile0Locales: extensions.sqlite corrupt or missing Profile0PrefErrors: Unexpected character ',' before close parenthesis @ /usr/lib/firefox/omni.ja:greprefs.js:354 Profile0PrefSources: prefs.js Profile0Themes: extensions.sqlite corrupt or missing Profiles: Profile1 (Default) - LastVersion=None/None (Out of date) Profile0 - LastVersion=84.0/20201211215739 (In use) RunningIncompatibleAddons: False SourcePackage: firefox UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2020 dmi.bios.vendor: Dell Inc. dmi.bios.version: A21 dmi.board.name: 0XCR91 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA21:bd07/09/2020:svnDellInc.:pnInspiron3558:pvr:rvnDellInc.:rn0XCR91:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: Inspiron 3558 dmi.product.sku: 06B0 dmi.sys.vendor: Dell Inc. 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