I didn’t expect to see it on a Sunday, but Google has updated the Google Earth plug-in to work with Firefox 3.  The cool thing is that you don’t even need to update the plug-in — some server-side tricks are what make it work.

I haven’t seen an official announcement yet, but it was revealed in this Google Group thread.  My previously non-working version is now fully functional, so apparently it’s live.

Now you can go play with ShareIt, or Monster Milktruck or anything else that you want using Firefox 3.