window[chromehidden~="toolbar"] #navigator-throbber[busy="true"],
toolbar[mode="text"] #navigator-throbber[busy="true"],
toolbar[mode="icons"] #navigator-throbber[busy="true"],
window[chromehidden~="toolbar"] #navigator-throbber[busy="true"],
toolbar[mode="text"] #navigator-throbber[busy="true"],
toolbar[mode="icons"] #navigator-throbber[busy="true"],