The firefox account icon is missing from the firefox toolbar. While customizing the toolbar, the firefox account icon was dragged out of the firefox window instead of back into the extra toolbar icon area that pops up when customizing the toolbar. This seems to have killed the firefox account icon. I have tried reinstalling firefox, even deleting all the the firefox and mozilla settings but the firefox account icon does not come back. On other machines (mostly VMs) the firefox account icon shows right up when using the firefox sync feature to configure firefox on a new installation. Can I get the firefox account icon back somehow?