last_visit_date Missing for Firefox History

[fligi7]

OSX Version: 10.12.4
Firefox Version: 52.0.2 (64-bit)

Running OSXCollector seems to miss (omit) extraction of the last_visit_date timestamps from Mozilla's places.sqlite database.

Example:
{
"last_visit_date": "",
"favicon_id": "",
"osxcollector_table_name": "moz_places",
"title": "",
"url": "http://www.blackmoreops.com/2014/03/03/20-things-installing-kali-linux/",
"typed": 0,
"osxcollector_db_path": "/Users/user/Library/Application Support/Firefox/Profiles/sp9nwv91.default/places.sqlite",
"url_hash": 125511445969823,
"id": 2587,
"frecency": -1,
"foreign_count": 1,
"osxcollector_incident_id": "TEST",
"osxcollector_username": "user",
"rev_host": ".www.blackmoreops.com",
"visit_count": 0,
"guid": "PkGHVgLUsT0L",
"hidden": 0,
"osxcollector_subsection": "history",
"osxcollector_section": "firefox"
}
{
"last_visit_date": "",
"favicon_id": "",
"osxcollector_table_name": "moz_places",
"title": "",
"url": "http://docs.kali.org/downloading/live-build-a-custom-kali-iso",
"typed": 0,
"osxcollector_db_path": "/Users/user/Library/Application Support/Firefox/Profiles/sp9nwv91.default/places.sqlite",
"url_hash": 125508166767540,
"id": 2588,
"frecency": -1,
"foreign_count": 1,
"osxcollector_incident_id": "TEST",
"osxcollector_username": "user",
"rev_host": ".docs.kali.org",
"visit_count": 0,
"guid": "oY1x7Ml6sbhm",
"hidden": 0,
"osxcollector_subsection": "history",
"osxcollector_section": "firefox"
}