Seems to work fine..and most importantly also seems to successfully import "Session Manager" extension session files

In my installation it saves and restores tabs in their original order, no problems there.

I have 3 Questions:
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1) Where are the TSM session files saved? (their folder location)
...the "storage.js" file in the extension's folder does not include any relevant information.

2) Will "Session Manager" session file compatibility be maintained in the future?

3) Can the TSM session be converted to "Session Manager" files?

I just recently spent a week trying to salvage my sessions (several hunded tabs a piece) from another extension in FF Quantum, which were lost after a crash following an extension update.
Recently I saw a similar issue happen with TSM...

..I am terrified of this happening again because my work (researcher) depends on keeping and organizing sessions of saved tabs...
so I will be maintaining both a Quantum and a Gecko installation with SM installed, just in case...

I need a sort of "insurance policy" to maintain "mental health" and prevent professional disasters...

...of course one thing I can do is use my Cyberfox/Waterfox installation to restore a TSM session and then re-save it in Session Manager...

Since you have obviously considered the issue of SM compatibility, if there is any info you can share on this, I would be grateful