The following is a possible LXDE workaround. Assuming the program such as Firefox is launched by a .desktop file, then you can change that to Exec a script (python script in this case) that puts up a splash notification for the duration of the program loading phase. My .desktop file now contains (note in particular the Exec line)
/usr/share/applications/firefox-with-splash.desktop
Code: Select all
[Desktop Entry]
Encoding=UTF-8
Name=Firefox with splash
Name[bg]=Firefox ESR
Name[ca]=Firefox ESR
Name[cs]=Firefox ESR
Name[el]=Firefox ESR
Name[es]=Firefox ESR
Name[fa]=Firefox ESR
Name[fi]=Firefox ESR
Name[fr]=Firefox ESR
Name[hu]=Firefox ESR
Name[it]=Firefox ESR
Name[ja]=Firefox ESR
Name[ko]=Firefox ESR
Name[nb]=Firefox ESR
Name[nl]=Firefox ESR
Name[nn]=Firefox ESR
Name[no]=Firefox ESR
Name[pl]=Firefox ESR
Name[pt]=Firefox ESR
Name[pt_BR]=Firefox ESR
Name[ru]=Firefox ESR
Name[sk]=Firefox ESR
Name[sv]=Firefox ESR
Comment=Browse the World Wide Web
Comment[bg]=Сърфиране в Мрежата
Comment[ca]=Navegueu per el web
Comment[cs]=Prohlížení stránek World Wide Webu
Comment[de]=Im Internet surfen
Comment[el]=Πε