Fixing Firefox Launcher on Kubuntu 22
Problem: Firefox installed but missing from KDE/Plasma app menu Root cause: No.desktop launcher file — Firefox only worked from terminal Solution: Created desktop entry with standard KDE fields Location: ~/.local/share/applications/firefox.desktop (user-local, no sudo needed) Discovery step: Checked /usr/share/applications/ — empty for Firefox Applied fix: Ran kbuildsycoca5 to rebuild Plasma’s menu cache Result: Firefox now appears in app menu (Network category) and Alt+F2 autocomplete