Second tab of last session dissapeared
I'm not sure how, but sometimes when closing firefox with or without a restart of the pc, the second tab of my last session dissapeared. The first tab is my mail and stays, but the second tab is sometimes missing. If I close now the browser and start the browser again, the second tab is still there, but today I didn't restart the pc but firefox was closed for a while, I am missing the second tab. The second tab I have now, was the third tab before.
I'm running Windows 10 (Version 2004) and firefox 83.0 (64-bit) and have 157tabs open at the moment.