When using that add a possibility to restore all previous sessions. For example if you have opened two browsers then only the only you closed last is possible to restore. Make it so you can restore previous 5 or something. Pretty frustrating.
When I logged into my OS today, Dropbox decided to launch my default browser (Firefox) to prompt me to reconnect my Dropbox connection. This circumvented Firefox' usual behavior of restoring my previous session. Firefox offered me no option to restore my previous session, which had many Tab Groups for different projects I'm working on. A single "previous session" to restore is not sufficient.
With tab groups, I'm relying more and more on open tabs. Now I'm hesitant to continue doing so.
Please enhance the session restore feature to retain at least 5 previous sessions to choose from.