How to enable drag/relocate of my FF toolbar?

When I go into Customize Toolbar, I can drag other toolbars to different position.

Wh开发者_如何学编程en I install my extension it positions on top-left, and I can't drag it from there. The mouse doesn't change into draggable grab/hand.

What did I missed in the configuration? How can I enable users to be able to drag my toolbar to different position?

Note: I am developing the toolbar, so it's not a superuser question.

I don't think you can drag your <toolbar>. You can drag items on the <toolbar>; to do this they need to live on the <toolbarpalette> (you can set the defaultset attribute to make them appear on your <toolbar> by default), or in newer versions of Firefox you can set the removable="true" attribute on the items.