Saturday, December 17, 2011


BetterPrivacy is a Firefox add-on that is able to delete a special kind of cookies: Local Shared Objects in short LSO's (usually known as Flash-cookies) are placed on your computer by a Flash plug-in. LSOs are harmfull because
  • they never expire
  • they by default offer a storage of 100 KB (ordinary cookies: 4 KB)
  • browsers are not fully aware of LSOs, LSO's often cannot be displayed or managed by browsers
  • via Flash they can access and store highly specific personal and technical information (system, user name,…)
  • of the ability to send the stored information to the appropriate server, without user's permission
  • Flash applications do not need to be visible to the user
  • there is no easy way to tell which LSO sites are tracking you
  • shared folders allow cross-browser tracking, all browsers use the same LSO folder
  • the company doesn't provide a user-friendly way to manage LSO's, in fact it's incredible cumbersome
  • many domains and tracking companies make extensive use of LSOs
  • LSOs are used to re-create data of deleted traditional cookies

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