Did you look at your history to see if they were still there.

Did you look at your history to see if they were still there.

Restoring previous session did not work (it said it encountered an issue, the list of tabs there was empty). There were no recently closed windows or tabs.

During such crashes the chances are very slim that anything was saved correctly to retrieve the information and if your "History" didn't show the sessions then the chances are they are gone as result of the crash.

During such crashes the chances are very slim that anything was saved correctly to retrieve the information and if your "History" didn't show the sessions then the chances are they are gone as result of the crash.

Yeah this is why my question is specifically about these two points: 1. I have shadow copies of the session from a week ago, these copies are corrupted, but not due to the crash. Is there a way to fix the corruption and somehow still decompress them and possibly retrieve a partial list? 2. Sync was always turned on. The moment I started Firefox and it was not able to restore the previous session, it overwrote the open tabs from this Computer. However, previously the open tabs were synced, so that must have been stored at some point in the database and it may be possible through some logs to retrieve the old state of this entry or to revert the last few transactions.