I've got firefox (from apt) and firefox-nightly (from zip) installed at the same time, with two separate desktop entries.
However, when I launch firefox nightly, it's associated with the wrong launcher icon:
Firefox-nightly has a custom
.desktop file with the following:
[Desktop Entry] Encoding=UTF-8 Version=1.0 Type=Application Icon=/opt/firefox/browser/chrome/icons/default/default128.png Exec=/opt/firefox/firefox -P clean %u Name=Nightly Comment=Nightly Terminal=false Hidden=false MimeType=x-scheme-handler/unknown;x-scheme-handler/about;x-scheme-handler/https;x-scheme-handler/http;text/html
How does ubuntu decide which applications are running for the purposes of showing in the dock and how do I fix my