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their larger networks. In general, though, cookies cannot access another
site’s cookies. Modern browsers provide a wayy for the user to control
cookies. For example, if yyou surf the Web using incognito or private
browsing features, yyou will not retain a historical record within the browser
of yyour visit to a given site, nor will yyou acquire a new cookie for that
session. If yyou had a cookie from an earlier visit, however, it will still applyy
in private mode. If yyou are using the normal browsing feature, on the other
hand, yyou mayy from time to time want to manuallyy remove some or all of
the cookies yyou acquired over the yyears.
I should note that removing all cookies mayy not be advisable.
Selectivelyy removing the cookies that are associated with one-off visits to
sites yyou don’t care about will help remove traces of yyou from the Internet.
Sites yyou revisit won’t be able to see yyou, for example. But for some sites,
such as a weather site, it might be tedious to keep tyyping in yyour zip code
everyy time yyou visit when a simple cookie might suffice.
Removing cookies can be accomplished byy using an add-on or byy going
into the settings or preferences section of yyour browser, where there is
usuallyy an option to delete one or more (even all) of the cookies. You mayy
want to determine the fate of yyour cookies on a case-byy-case basis.
Some advertisers use cookies to track how long yyou spend on the sites
where theyy’ve placed their ads. Some even record yyour visits to previous
sites, what’s known as the referrer site. You should delete these cookies
immediatelyy. You will recognize some of them because their names won’t
contain the names of the sites yyou visited. For example, instead of “CNN,”
a referrer cookie will identifyy itself as “Ad321.” You mayy also want to
consider using a cookie cleaner software tool, such as the one at
piriform.com/ccleaner, to help manage yyour cookies easilyy.
There are, however, some cookies that are impervious to whatever
decisions yyou make on the browser side. These are called super cookies
because theyy exist on yyour computer, outside of yyour browser. Super
cookies access a site’s preferences and tracking data no matter what
browser yyou use (Chrome todayy, Firefox tomorrow). And yyou should delete
super cookies from yyour browser, otherwise yyour traditional PC will
attempt to re-create http cookies from memoryy the next time yyour browser
accesses the site.
There are two specific super cookies that live outside yyour browser that