Google Calendar as Default Handler of iCal/ICS files

Question

I would like for Google Calendar to open ICS files when I open them. In a way analogous to how Gmail can be set to be the default handler for mailto: links.

More specifically, I would like for Google Calendar to import them to my primary calendar, which can manually be achieved by, when on Google Calendar, clicking the small arrow next to Other Calendars, then choosing Import Calendar, picking the appropriate file and choosing Import.

I don't know if this is possible, but I'm hoping somebody will have a great idea.

Answer 1

Chromium

The chromium browser offers this option when you first log in to Google Calendar:

If you have accidentally answered with No on this question, you can press the Wrench toolbar button and go to Settings. Click Show advanced settings, find Content settings... (just after Privacy header) and find the Manage handlers button. Click the X next to the ignored protocol you wish to delete. Alternatively, you can type in protocol handlers search box in Chromium settings.See the screenshot below.

Firefox

I found this post on stackexchange which explains how to achieve the same thing in Firefox, but this doesn't work for me on firefox 12 and 15: this works for me if I disable the Never save history option (Private browsing mode):

Go to Google Calendar's site and press Ctrl+Shift+K.

Paste this after the > sign:

navigator.registerProtocolHandler("webcal","https://www.google.com/calendar/render?cid=%s","Google Calendar");

Press the enter key and click the Add application button which should appear below the toolbar.

You may need to toggle the gecko.handlerService.allowRegisterFromDifferentHost option in about:config to true before trying this (if google redirects you to a local google domain). Remember to return it to false after calling the registerProtocolHandler function because malicious sites may exploit this. See details here.