I uninstalled all the non-default extensions and deleted the extensions folder as you said.
I rebooted then: 246.2 MB at 10:19 in the morning 449.6 10:45 - then just left the PC on but did not use it. 2.5 GB 16:49 3.0 GB 17:50 Both previously and after removing the extensions today, if I issue the [alt-F2 r] command, the memory drops back down to 250 MB from however many GBs it is. settings.txt is as follows. It shows extensions as active that have been removed (not present in either extensions app or via Firefox extensions addon). Note that apart from audio output switcher, caffeine, clipboard indicator and night theme switcher, all the others were uninstalled previously, even many months ago. org.gnome.shell always-show-log-out true org.gnome.shell command-history ['electrum', 'libreoffice', 'densify', 'rpi-imager', 'sudo nautilus', 'firefox-esr -p', 'pdf-shuffler', 'pdfshuffler', 'e', 'firefox -p', 'firefox', 'zoom-client', 'zoom', 'r'] org.gnome.shell disable-user-extensions false org.gnome.shell favorite-apps ['org.gnome.Nautilus.desktop', 'thunderbird.desktop', 'firefox.desktop', 'brave_brave.desktop', 'keepassxc_keepassxc.desktop', 'signal-desktop.desktop', 'libreoffice-startcenter.desktop', 'zotero.desktop', 'qownnotes_qownnotes.desktop', 'io.freetubeapp.FreeTube.desktop', 'deezer-unofficial-player_deezer-unofficial-player.desktop', 'org.gnome.Calculator.desktop', 'org.gnome.gedit.desktop', 'gnome-system-monitor.desktop', 'org.gnome.Terminal.desktop', 'gnome-control-center.desktop'] org.gnome.shell disable-extension-version-validation false org.gnome.shell app-picker-layout [{'activity-log-manager.desktop': <{'position': <0>}>, 'software-properties-drivers.desktop': <{'position': <1>}>, 'ipscan.desktop': <{'position': <2>}>, 'asunder.desktop': <{'position': <3>}>, 'b6610f32-e5f8-4c19-bc38-5ffe59aa2b03': <{'position': <4>}>, '110b1d27-41cd-4692-bad9-b284b2550360': <{'position': <5>}>, 'brasero.desktop': <{'position': <6>}>, 'brave_brave.desktop': <{'position': <7>}>, 'org.gnome.Calculator.desktop': <{'position': <8>}>, 'org.gnome.Calendar.desktop': <{'position': <9>}>, 'chromium_chromium.desktop': <{'position': <10>}>, 'cxmenu-cxoffice-0-29ra4ke-CrossOver.desktop': <{'position': <11>}>}, {'45811740-3c10-4b96-96f1-32ece2f7beb5': <{'position': <0>}>, 'c1fafecf-7cfc-46b9-9f34-a17946350ce2': <{'position': <1>}>, '3efb6382-8cc9-4e63-a83d-6f493d6e7eea': <{'position': <2>}>, '04e9ab59-946d-45fc-8cf9-2d1f30687c87': <{'position': <3>}>, 'appimagelaunchersettings.desktop': <{'position': <4>}>, 'org.gnome.Extensions.desktop': <{'position': <5>}>, 'org.gnome.Nautilus.desktop': <{'position': <6>}>, 'firefox.desktop': <{'position': <7>}>, 'firefox-esr.desktop': <{'position': <8>}>, 'e1aad5c4-1dd4-4c70-8a84-a5010cfa497a': <{'position': <9>}>, 'gufw.desktop': <{'position': <10>}>, '32f57fbf-667c-468f-93a3-28b0dff8d90d': <{'position': <11>}>, 'io.freetubeapp.FreeTube.desktop': <{'position': <12>}>, 'gparted.desktop': <{'position': <13>}>, '9af87983-c744-460a-9c8b-440255bb12f7': <{'position': <14>}>, 'appimagekit_5f3a07c34a5b4731d926c6884d6bc2b9-Cryptomator.desktop': <{'position': <15>}>, 'appimagekit_5a114e2dbad5c64c2fde237f05d90b5e-balena-etcher-electron.desktop': <{'position': <16>}>, 'fslint-unofficial_fslint-unofficial.desktop': <{'position': <17>}>, '6f02e5b1-1082-4f71-b004-acdc909db025': <{'position': <18>}>, 'appimagekit_aefcfd08d8a93b10918d58f719d262c5-electrum.desktop': <{'position': <19>}>, 'org.kde.kdenlive.desktop': <{'position': <20>}>, 'protonvpn.desktop': <{'position': <21>}>, 'deezer-unofficial-player_deezer-unofficial-player.desktop': <{'position': <22>}>}, {'guvcview.desktop': <{'position': <0>}>, 'htop.desktop': <{'position': <1>}>, 'org.gnome.eog.desktop': <{'position': <2>}>, 'keepass2.desktop': <{'position': <3>}>, 'keepassxc_keepassxc.desktop': <{'position': <4>}>, 'kodi.desktop': <{'position': <5>}>, '0c9c6ea8-a25b-4757-841e-b475a3cbfd63': <{'position': <6>}>, '8f5a5ea6-02b3-497c-8bc3-c41cb5790b9a': <{'position': <7>}>, 'menulibre.desktop': <{'position': <8>}>, '115aa591-ddd8-4b00-9e59-8245b2ae8334': <{'position': <9>}>, '14da8e16-d6b7-4c6d-bdcb-338dcedf8fe5': <{'position': <10>}>, 'dev.alextren.Spot.desktop': <{'position': <11>}>, 'dae0aaf1-4f08-4c3c-86af-efd2ba79a28d': <{'position': <12>}>}, {'mpv.desktop': <{'position': <0>}>, 'org.gnome.Music.desktop': <{'position': <1>}>, 'com.nextcloud.desktopclient.nextcloud.desktop': <{'position': <2>}>, 'nvidia-settings.desktop': <{'position': <3>}>, 'org.gnome.seahorse.Application.desktop': <{'position': <4>}>, 'org.gnome.PowerStats.desktop': <{'position': <5>}>, 'pavucontrol.desktop': <{'position': <6>}>, 'pymol-oss_pymol-oss.desktop': <{'position': <7>}>, 'qownnotes_qownnotes.desktop': <{'position': <8>}>, 'rhythmbox.desktop': <{'position': <9>}>, 'gnome-control-center.desktop': <{'position': <10>}>, 'shotwell.desktop': <{'position': <11>}>, 'signal-desktop.desktop': <{'position': <12>}>, 'skype_skypeforlinux.desktop': <{'position': <13>}>}, {'906a4218-2e08-482b-ba6a-c39aa32e066a': <{'position': <0>}>, 'soundconverter.desktop': <{'position': <1>}>, 'b3ebcc95-c87f-431b-aabf-47412a29b547': <{'position': <2>}>, 'c0b5451e-4281-4c7a-95ca-b98974c7897f': <{'position': <3>}>, 'steam.desktop': <{'position': <4>}>, 'Sundry': <{'position': <5>}>, 'supertuxkart.desktop': <{'position': <6>}>, 'hardinfo.desktop': <{'position': <7>}>, 'TaxCalcHub.desktop': <{'position': <8>}>, 'com.teamviewer.TeamViewer.desktop': <{'position': <9>}>, 'org.gnome.gedit.desktop': <{'position': <10>}>, 'thunderbird.desktop': <{'position': <11>}>, 'time.desktop': <{'position': <12>}>, 'timeshift-gtk.desktop': <{'position': <13>}>, '46c0649b-b105-4678-a0ef-c5b659300c93': <{'position': <14>}>, 'transmission-gtk.desktop': <{'position': <15>}>, 'org.gnome.tweaks.desktop': <{'position': <16>}>}, {'Utilities': <{'position': <0>}>, 'veracrypt.desktop': <{'position': <1>}>, 'virtualbox.desktop': <{'position': <2>}>, 'vlc.desktop': <{'position': <3>}>, 'wireshark.desktop': <{'position': <4>}>, '06500345-0f6b-4621-ac7f-17efd42c49e6': <{'position': <5>}>, 'y-ppa-manager.desktop': <{'position': <6>}>, 'zoom-client_zoom-client.desktop': <{'position': <7>}>, 'zotero.desktop': <{'position': <8>}>}] org.gnome.shell had-bluetooth-devices-setup false org.gnome.shell looking-glass-history @as [] org.gnome.shell enabled-extensions ['gsconn...@andyholmes.github.io', 'ubuntu-d...@ubuntu.com', 'ubuntu-appindicat...@ubuntu.com', 'sound-output-device-choo...@kgshank.net', 'darkthemetog...@jacob.mischka.me', 'desktop-c...@schneegans.github.com', 'audio-output-switcher@anduchs', 'clipboard-indica...@tudmotu.com', 'nightthemeswitc...@romainvigier.fr'] org.gnome.shell disabled-extensions ['nightshellswitc...@romainvigier.fr', 'caffe...@patapon.info'] org.gnome.shell development-tools true org.gnome.shell introspect false org.gnome.shell remember-mount-password true org.gnome.shell welcome-dialog-last-shown-version '40.5' org.gnome.shell.keybindings switch-to-application-4 ['<Super>4'] org.gnome.shell.keybindings switch-to-application-7 ['<Super>7'] org.gnome.shell.keybindings toggle-message-tray ['<Super>v', '<Super>m'] org.gnome.shell.keybindings toggle-application-view ['<Super>a'] org.gnome.shell.keybindings focus-active-notification ['<Super>n'] org.gnome.shell.keybindings switch-to-application-2 ['<Super>2'] org.gnome.shell.keybindings switch-to-application-5 ['<Super>5'] org.gnome.shell.keybindings switch-to-application-8 ['<Super>8'] org.gnome.shell.keybindings open-application-menu ['<Super>F10'] org.gnome.shell.keybindings toggle-overview ['<Super>s'] org.gnome.shell.keybindings switch-to-application-3 ['<Super>3'] org.gnome.shell.keybindings switch-to-application-6 ['<Super>6'] org.gnome.shell.keybindings switch-to-application-9 ['<Super>9'] org.gnome.shell.keybindings shift-overview-up ['<Super><Alt>Up'] org.gnome.shell.keybindings switch-to-application-1 ['<Super>1'] org.gnome.shell.keybindings shift-overview-down ['<Super><Alt>Down'] -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1955058 Title: gnome-shell memory use climbs to multiple GBs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1955058/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com 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