Session Manager is a very useful Firefox addon especially for people who need to the same websites everyday. It is also useful if you have opened multiple websites in several tabs and used passwords etc. and need to keep them in your browser irrespective of browser crashes or your closing the browser. You can simply save any session you want and reload back the session whenever you want. As mentioned in the official Firefox addon page, “Session Manager saves and restores the state of all windows – either when you want it or automatically at startup and after crashes.” You can also save multiple sessions as per your need and later on choose the session which you want restored. For example, if you like to visit a set of game related websites everyday during the evening while a set of business sites during the afternoon then you can save two different sessions and restore the one you need at the respective time of the day. The Firefox Addon has been developed by mozdev.org and so, quality and long term support and upgrades for the addon should not be a problem. This addon is a must install if you like opening multiple tabs at the same time.
You can download the Session Manager Firefox Addon at the official download page at:
https://addons.mozilla.org/en-US/firefox/addon/session-manager/