"The new Google Earth isn't supported by your browser yet"
What does "yet" mean? Do Opera developers need to take action on this? Or is it just a polite way for Google to say that if I don't use Chrome, i'm not going to access Google Earth?
most likely never and also not any of the desktop clients
Try with a User agent switcher extension.
Ye you can only uue Google Chrome, bcus they want to use their browser.
You can download Google Earth Pro from here:
And after you download and install then sign into it with your Gmail info and a unlock code will be sent to you