SessionBox SessionBox SessionBox is a browser extension, which enables you to use any website with multiple user accounts, without the need of incognito windows, secondary browsers or new browser profiles. Just open a new tab - managed by SessionBox -, and you get an isolated work area. Use a Group of sessions for Work and use one for your Personal accounts. Use these parallelly, without the need of logging out when switching to the other one. Save and sync these sessions across your devices, or even share them with your friends or colleagues. No need to share your passwords any more, share your account access for a limited time.