after a session is"lost", how can it be restored through backup or other folders such as Json?
Had 2 windows open, one 5 tabs and the second window had 1300 tabs
The 1300 tab window session is lost.
Even searching history, most can not be found
What can be done?
Are there backup folders I presume or reading of a Json folder where session profiles are kept, if so how can I insert this folder for the primary session to restore lost session?
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See if this helps. https://support.mozilla.org/en-US/questions/1440459#answer-1637875 Are there options in the menu under history to restore anything?
You can try to restore the upgrade.jsonlz4 file from the last update in the sessionstore-backups folder or use a utility to browse Windows System Restore points to see if you can find a recent sessionstore.jsonlz4 file.
You can copy a file from the sessionstore-backups folder to the main profile and rename the file to sessionstore.jsonlz4 to replace the current file with Firefox closed.
- make sure to backup the current sessionstore.jsonlz4
You can look at this tool to inspect a compressed jsonlz4 sessionstore file. This tool works locally, no uploading done.