Hi there Vipulitha, you can restore your tabs by following the steps from this article: https://support.mozilla.org/en-US/kb/how-do-i-restore-my-tabs-last-time

Let me know if it helps

Hi It's pass the point of restoring process in the article. Only your team can support now. There is no restore previous session or window change. :(

Hi It's pass the point of restoring process in the article. Only your team can support now. There is no restore previous session or window change. :(

Hi, sorry for being late to reply this. Do you mind taking a screenshot and share to let us know what you see?