Cookies

A cookie is a file created by a web site that stores information on your
computer, such as site-specific preferences when visiting that site.

Accept cookies from sites

By default cookies are enabled. Uncheck this optionpreference to disable the
use of cookies. Note that some sites may not work properly when cookies are
disabled.




Keep until:





* they expire

This is the default optionpreference. When set, this allows websites to
specify how long a cookie will be stored by Firefox. This makes
it possible for a site to remember your preferences and login information
across browser sessions.

* I close Firefox

With this optionpreference selected, Firefox will remove all
stored cookies when closed.

* ask me every time

With this optionpreference enabled, Firefox will ask you how long
you would like to keep a cookie (or refuse it entirely) every time a web
site attempts to set one.







To control which sites may or may not set cookies, click the
Exceptions... button.




To display the Cookie Manager click Show Cookies....




Learn more about cookies, the individual optionspreferences, and how you can
gain control over what sites are allowed to store cookies on your computer
by reading about Managing Cookies.



Private Data



Always clear my private data when I close Firefox

You can choose to have Firefox clear your private data when you
close it. To configure what data is cleared, click the Settings...
button.




Ask me before clearing private data

With this optionpreference selected, Firefox will ask you before
automatically clearing the data specified by clicking
Settings....




If you wish to clear your private data right now, you can click the
Clear Now... button to do so. To clear your private data from
outside the preferences dialog, either press CtrlCmd+Shift+Del
or select Tools > Clear Private Data....