Tab-session-manager: List of sessions mostly "0 windows - 0 tabs"

[tornado103]

Is it because I don't save history?
I've noticed that 95% of my saved sessions have nothing :(

It's by far my favorite session manager, so I'd like to get it figured out

[tornado103]

When I try to save a session, it's saving as 0 windows 0 tabs

[sienori]

Please tell me your firefox version.
In firefox57 and Tab Session Manager ver1.8.0, It will not happen.

[tornado103]

Hello Sienori,
The PC I was using has crashed,
but I have transferred the files to my WIndows 10 laptop where Tab Session Manager has always worked.

I figured it out!
On the crashed PC I was using "private" firefox and did not check the box in options for "Save Private Window"

Problem solved. Thank you for a great Add-on/Extension