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The most obvious is web history, but there are others. Please submit the ones you know. How can they be deleted/disabled.

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@echo, per your request –  flybywire Jul 22 '09 at 9:45
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5 Answers

up vote 5 down vote accepted

The Flash cache, see How to automatically remove Flash history/privacy trail? Or stop Flash from storing it?

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like this one. so I don't pick my own answer –  flybywire Jul 23 '09 at 9:28
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In windows,

ipconfig /displaydns

Displays the DNS entries in your cache, from which it is very easy to deduce which websites you visited lately, but not which pages in the website.

Note that this remains after you deleted your webhistory.

It can be deleted by

ipconfig /flushdns
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I always wondered if it can be checked somehow. Thanks! –  KovBal Jul 22 '09 at 9:49
Likewise: NAT entries in routers. –  Arjan Jul 22 '09 at 14:09
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Windows recent documents and applications opened.

To stop it doing it:

Right click on the start bar, properties, Start Menu tab and uncheck the boxes at the bottom.

To clear them if they're there:

Documents: Start menu button, right click on recent items and "Clear Recent Items List". Alternatively if you want to delete just one then Start Menu Button, Recent Items then right click on it and delete (don't forget to empty the recycle bin).

Applications: Start menu button, right click on each item and "Remove From This List".

(All assumes Vista - XP not so different that you couldn't work it out by looking in roughly the same places...)

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On XP you have to switch to the new style start menu to get this option, then you can switch back to classic when they are cleared –  Martin Beckett Jul 22 '09 at 14:03
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Related to web history:

To temporarily disable caching/history/cookies, there is this firefox extension called Stealther


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Hmmm, I don't think this removes any traces that Flash leaves on your computer? (And it may have been superseded by the built-in Private Browsing modes?) –  Arjan Jul 22 '09 at 14:05
My understanding is that Stealther is meant to only stealthify a part of your browsing, leaving the rest visible. That way, you don't have a suspiciously empty cache, but your cache also doesn't have any incriminating stuff in it. –  Ryan Thompson Oct 18 '09 at 20:19
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My browser is set to store history for a few years. Encrypting ~/.mozilla is more than enough to secure against my ${FAMILY_MEMBER}s.

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With years of history, don't you run into trouble with a HUGE places.sqlite file then? And hence a performance drop, or the need to vacuum that file? –  Arjan Jul 22 '09 at 14:07
Actually, I do. –  grawity Jul 23 '09 at 11:51
Oh, too bad. But you know how to fix that? If not: superuser.com/questions/3275/firefox-on-mac-slow-slow-slow/… –  Arjan Aug 2 '09 at 11:22
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