Useful add-on!
Would be better if I can overwrite saved sessions, not only save a new sessions and delete an old sessions.

Simple - Basic - Works
When adding a new session, it is appended at the bottom of all saved sessions, and by default given a number. Use Edit to rename....have not figured out how to 'edit' an existing saved session. Appreciate this replacement for the old fully featured session manager....

Thanks for this great extension.
Can you please look into implementing following:
* Preserve pinned tabs state
* List saved tabs names and/or urls and/or siteicons
* Overwrite saved session
* Place "Edit" and "Start/Delete session" buttons on one line to narrow vertical layout