gnome extensions

https://extensions.gnome.org/extension/1010/archlinux-updates-indicator/
https://extensions.gnome.org/extension/517/caffeine/
https://extensions.gnome.org/extension/1139/apt-update-indicator/
https://extensions.gnome.org/extension/1225/wallpaper-changer/
https://extensions.gnome.org/extension/1460/vitals/  leak?

https://extensions.gnome.org/extension/841/freon/

freon temp filtering

https://extensions.gnome.org/extension/826/suspend-button/
https://extensions.gnome.org/extension/1043/gnomestatspro/

* do not install
  * increase cpu freq with HT off
https://extensions.gnome.org/extension/1082/cpufreq/
https://extensions.gnome.org/extension/945/cpu-power-manager/