Good session manager, has good features. Sessions open fast. A problem for me after saving a fair number of sessions was slow opening time. I'd start FF and the TSM would not populate with sessions for perhaps 10-15 minutes. Is it loading sessions all that time? Perhaps should load auto-save sessions last? As said in another review, wording of how to save backups is confusing. Better wording: "Save location must be under the Download Folder (set in browser settings)."