09 May 2019
Like most web browsers Firefox includes a Session Restore feature allowing your currently open windows and tabs to be restored in the event of a forced-restart or crash. All session data is stored in a compressed file format referred to as MOZLZ4 or JSONLZ4. The file format is standard LZ4 data with a custom header. We have recently updated BHE to automatically extract session data from the sessionstore.jsonlz4 file and any files within the sessionstore-backups folder.