I upgraded to OS/X 10.6.4 and am using Firefox 3.6.9. I installed the latest Diigo add-in, but am missing the "bookmark" button on the Diigo toolbar. I am signed-in. I tried signing out and re-installing the add-in.
Director of Technology at an independent school in Washington DC. I work hard to innovate by keeping abreast of educational research and technology products that can improve learning environments.