Gcal Popup provides “Google Calendar in a nice overlay so that your calendar can be updated without ever leaving the web page”.
If you use Google Apps for Domains,you will need to make a small change to make it work.
1. Close Firefox
2. Go to your profile directory
3. Go into extensions/GCAL@BenjiP.net/chrome/content and modify GCalPopupOverlay.js
4. Open the file in a text editor and replace the “src” attribute “www.google.com/calendar/render” with “www.google.com/calendar/a/yourdomain.com/render”, obviously replacing yourdomain.com with whatever your own domain is.
5. Restart Firefox
One small caveat, it is an experimental add-on, which means you need to have a Mozilla account to get it. You can get a Mozilla account by registering at the link.
