I want firefox to open a .ics file in google calendar rather than the "Use Calendar (default). I've already run the script linked here : https://support.mozilla.org/en-US/questions/1196085 to register the webcal protocol handler. The webcal It shows up in the Settings / Genera / Applications list See attachment "Webcal.jpg. But earlier in the applications list, there is a "Calendar" entry that only allows me to go to the "Use Calendar (default) or ask or save. See attachment Calendar.jpg It seems like Firefox uses the Calendar entry before it gets to the webcal entry and so it always opens the default windows calendar application. Help! How do I get firefox to use the webcal entry and not the calendar entry. Thank you.