Firefoxes "save and close" function & firefox add-ons

Good morning.

I have installed the latest version of ccleaner, and found something changed when using it after firefox.

When you close down firefox it asks if it should remember all the tabs that are open, which I find quite useful when logging on again.

IT always did that until last week, when I updated firefox... now, it no longer does...

Which one of the settings do I need to change to make that work again?

Thanks, JG

PS: Does anybody a place where I can find a list, which will tell me which firefox add-ons will still work and which ones not, after updating to a newer version???? It is such a nuisance, when they no longer work...

Session Cleaning under Mozilla will erase the saved tabs, untick it to prevent this.

Session Cleaning under Mozilla will erase the saved tabs, untick it to prevent this.

Thank you... perfect...