Mac OS X 10.7.5 plug-in compatible?

I have just installed the plug-in, but when it gets to this page:

It just spins forever looking for the plug-in.

Is the plug-in compatible with Mac OS X 10.7.5?

Update: I restarted the entire computer system, and noticed that the Arduino plug-in icon in the menu bar was grayed out. When I choose "Open Plug-in" (which doesn't actually open anything), the icon became black, and then web create seems to work fine.

Great to hear that!