Thunderbird task manager icon

If you use Wayland and in taskbar TB has an ugly W icon, you can try

  • to check if the path of icon is correct;
  • add this line (or something similar) in tb .desktop file: StartupWMClass=thunderbird-esr. Instead of thunderbird-esr you could have to check the appropiate name of TB in yout system.
  • be sure that the name of your desktop file be capitalized, that is Thunderbird.desktop and not thunderbird.desktop;
  • be sure that you don’t have duplicate Thunderbird entries (i.g. in KDE menu or in .desktop files)



Ugly icons in KDE Plasma 6

The simplest way to get the right icons is to choose breeze as main theme, and then go (as root, ui.g. with Krusader in root mode) to usr/share/icons and rename breeze/places to places.orig, and afterwards symlink places from Humanity Classic to breeze.
To get correctly Humanity Classic you have to install (via Synaptic) Adwaita icons, otherwise you could be forced to remove a lot of essential packages. Installing Adwaita will ask you a very small kind of change.

missing gtk icons

Using KDE in a new installation you could don’t have all the gtk icons. If so, try with:

sudo apt-get install --reinstall adwaita-icon-theme-full