Cookies save you the trouble of having to log in each time you return to a site, which is a big help if you use subscription news services or social networking sites.
The bad cookies are placed there by advertising companies who pay for the right to place ads on website pages(some sites also leave their own ad cookies).
These files are used when you visit pages, thus displaying ads for clients of these companies(or your own ads) and can be adapted according to your browsing history.
Over time, cookies can reveal a lot about your surfing habits, although the normal advertising cookies, like those used by DoubleClick, can not associate a name with a specific surfing trail.
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That means that if you delete your cookies as soon as you close the browser, the ad networks never have the chance to trace their route from one session to another.
Internet Explorer 6 and 7 and/or Firefox 1.x and 2 have good procedures for handling cookies.
IE lets you keep cookies(those sites you want), but blocks those from third-parties.
To make the changes, Select Tools • Internet Options • Privacy • Advanced.
In the dialog box Advanced Privacy Settings, select Override automatic cookie handling.
Under Cookies, select Accept, Under Third Party Cookies, select Block. Overlook the option of session cookies. Click OK twice. Click here: snapchat spy
Firefox 2 can accept and clean any cookies that you have not explicitly instructed to save.
Click Tools • Options • Privacy, select Accept cookies from sites using the drop-down box that says ‘Keep until’ and select I close Firefox.
To keep cookies from trusted sites, click Exceptions and type in the dialog box of the URL whose cookies you want to keep in the ‘Address of Web site’.
Click Allow for each, and when finished, click Close and OK. Read much more: snapchat spy
If you use Firefox 1.5, click Tools • Options • Privacy • Cookies, select Allow sites to set cookies and select from the originating site only.
Many security programs, such as PC-Cillin, Norton Internet Security, and Ad-Aware, also help destroy known spyware cookies.
In todays internet world, our surfing habits are always being monitored.