Great set of information here. Problem - This afternoon, I opened the extension v2.0.2 from the IP icon in Firefox' Toolbar. Used it to investigate a few hosts, for a few minutes, and then left the system running. The monitor went to the bootup (Welcome?) background after a half-hour, without logging out. On entering PW for my Admin user acct., the previous Desktop [M$ Win8 (x64)] displayed on monitor immediately (am using StartMenu8 to give me my preferred, Windows7 style, desktop with Taskbar, etc.), and Firefox browser v37.0.2 was standing open with same tabs set as before, BUT, the IP button was missing from the Toolbar in Firefox! IP button icon is not available in the Customize dialog box nor in the Toolbar icons dialog. However, the extension is fully listed in Firefox Add-ons Manager's Extensions view , same as always. What happened to the IP button? How can I get it back?