Using Bartab 2.1b2, tabs with whitelisted hosts remain unloaded at startup. This was tested by manually adding a host to extensions.bartab.whitelist because both the context-menu and preferences dialogue are unable to add hosts to the whitelist. I assume this is due to the changes in FF4 session manager's tab loading behaviour, as I have set browser.sessionstore.max_concurrent_tabs=0 which may override Bartab completely.
Using Bartab 2.1b2, tabs with whitelisted hosts remain unloaded at startup. This was tested by manually adding a host to extensions.bartab.whitelist because both the context-menu and preferences dialogue are unable to add hosts to the whitelist. I assume this is due to the changes in FF4 session manager's tab loading behaviour, as I have set browser.sessionstore.max_concurrent_tabs=0 which may override Bartab completely.