Why Firefox stuck ten seconds and my hard drive is reading after 2 minutes?
Well I don't know why is this happening, after I launch firefox, two minutes after, Firefox is stuck for ten seconds or so and my Hard drive is reading something, after that, firefox is running perfectly and if I closed it and re open it that no happens again, but why the first time?
This happened
Every time Firefox opened
== Always?
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If that is happening just once a day, I would suspect that Firefox is updating the urlclassifier3.sqlite file when that happens. That is the Safe Browsing - Anti-Phishing / Malicious Websites database file that is updated once a day = it is usually updated the first time Firefox is used each day.
http://kb.mozillazine.org/Urlclassifier2.sqlite older version of that file
Deleting that file, which forces Firefox to create a new version of that file, may work to make the daily updating of that files less system intensive or noticeable. A fresh load of that data will result in a much smaller file for Firefox to deal with. Data never seems to be removed by that file, only added. And it can get to be quite large. I have seen it as large as 67MB - on my system the lag seems to start when that file is about 60MB. https://bugzilla.mozilla.org/show_bug.cgi?id=383031