Missing device in synchonized device list to transfer tabs
I have two computers: one personal (HP), one from my work (MBP). I quit my job a few weeks back but still had my MBP in case they needed something. I continued to use it and I had to return it back yesterday.
I synchronized my tabs using Firefox Sync on the MBP and could see them well on my HP. I formatted the MBP and returned it, without disconnecting my Firefox account. I got back home and tried this morning to load on my HP the tabs I had on my MBP, but it is not listed anymore. (Surprisingly, some other device I didn't touch for 2 or 3 weeks is still listed, even though it's not connected.) I tried on another device to connect my Firefo account, thinking it would propose me to open a session have somewhere else, but the MBP session isn't listed there either.
I can't lose all the researches I made during the last few weeks :S I turned my side project into a full time job, I need them.
Is there any way to retrieve somehow the tabs I had open on the MBP? Is there a way to get from the Sync server any copy they have for my devices? Does Firefox writes to disk what it gets when listing the data of synchronized devices, so I could try to look into the deleted files on my disk?
Help or ideas much appreciated!