Deleted all my tabs leaving me with about blank pages

Didn't see any instructions. Next thing I knew I had one tab open and the shedloads of tabs I was trying to organise and preserve, have gone. Being polite, I'd say that this needs work.

The only session manager that works on android.
Very basic session manager.

I thought this would help me save state of my 50 open tabs with interesting sites on Android. It seemed it did, so I closed them all. Then I tried reopening them, and all I got was 1 tab with actual content and 49 "about:blank" empty tabs.