How can I locate a log of dated activity on a mozilla firefox where I know I should have entries in my history yet they do no show - and without being deleted?

Question

In summary, on the date of 8/17/2014 in the evening, I experienced some very bad internet connectivity and virtually any website I visited was having difficulty loading. I know I had visited a couple of websites between the hours of 6:30pm or 6:45pm (EST) up to roughly an hour or two, and now (even though I had NOT chosen to delete even one (let alone hours of history entries) there is a chunk of mozilla history missing where I did not delete. I am seeking some assisstance finding the log of ALL of this browser's activity that day, especially a record of any alterations to browser's history. I know that I did not physically delete hours worth of activity and there must be some way of bringing this truth to light. Thank you for your time

Answer 1

You can use the SQLite Manager extension to create the list.
*SQLite Manager: https://addons.mozilla.org/firefox/addon/sqlite-manager/
*Open Profile Directory -> places.sqlite -> Go
*Hit the "Execute SQL" tab
*Use a Select like this:
<pre><nowiki>
SELECT datetime(visit_date/1000000,'unixepoch','localtime') AS visit_date, url, title
FROM moz_places, moz_historyvisits
WHERE moz_places.id = moz_historyvisits.place_id AND visit_date BETWEEN strftime('%s','YYYY-MM-DD HH:MM:SS')*1000000 AND strftime('%s','YYYY-MM-DD HH:MM:SS')*1000000
ORDER BY url, visit_date DESC
</nowiki></pre>
Change the strftime parameter list to the wanted date/time range, times in UTC.
Leave out the ORDER BY line to order by the first column (visit_date) or use ORDER BY visit_date DESC