Dear Community, I used for three days the function sync on firefox. In this procedure I wanted to transfer my android tabs to my desktop pc. On my desktop pc I have seen all tabs of my android phone. So I have started to transfer the tabs to my desktop pc. After a short time my mozilla firefox on android crashed and after my restart of my android firefox all inactive tabs were gone. So this was my first time, when I made this bad experience in over more than 15 years of using firefox. Meanwhile I searched for different solutions, but nothing fitted to my challenge. I hope really, that somebody could help me: * Is there any possibilty to see the cache on the desktop pc from the android data, which was seen in the sync tunnel? * Is something saved on the sync cloud, where I could get data from? * Is a cache file existing of the sync data? * Is there any option of old session restore? If yes, where can I find different backup files on android? * Can I connect with e.g. SDK in the developer mode and get files of sessionstore.js? A JASON file of the inactive tabs would be really nice. * Any other developer modes, which could be helpful? Trouble Shooting? * Can I root the mobile phone afterwards and get hidden files of firefox? * Are there any other unvisible places, where the data of deleted inactive files could be find? * Can I access data through the android firefox browser? * Perhaps you will have a solution through SDK? * Do you have other devtools to try? I am fine with remote debugging through usb, if you will have a solution for it. I appreciate your support and hope to find a solution for my request. I loved firefox for a long time. Thank you so much. Kind regards