Enable Firefox Cookies

Firefox 5

Step one
From the Tools menu at the top of the browser window, select option.

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Step two
Click on the privacy tab and from the drop down menu located next to the section labelled history, select Use custom settings for history.

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Step three
Make sure the boxes next to Accept cookies from sites and Accept third party cookies are checked. Press OK.

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Step four
At any time if you want to disable cookies, simply uncheck the boxes next to Accept cookies from sites and Accept third party cookies.

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Mozilla Firefox 4

Click on Tools, then Options (or Edit | Preferences on Linux)

Select Privacy

Select Cookies.

Choose your preferred settings (You can configure which sites are allowed to set cookies, how long to keep them for, and view and manage your existing cookies).

Mozilla Firefox 3

Click on Tools, then Options (or Edit | Preferences on Linux)

Select Privacy

Select Cookies.

Choose your preferred settings (You can configure which sites are allowed to set cookies, how long to keep them for, and view and manage your existing cookies).

Mozilla Firefox 2.0

Click on Tools, then Options (or Edit | Preferences on Linux)

Select the Privacy icon in the left-hand panel

Click on Cookies.

Choose your preferred settings.

Note that the option to block third-party cookies has been removed from Firefox 2′s user interface. Firefox 2 users who wish to limit allowed cookies to those set by the originating website can use about:config to modify the preference network.cookie.cookieBehavior to “1″. To modify this property simply type “about:config” (without quotes) in the Location Bar, press Enter and modify the value in the resulting page.

Other options for the network.cookie.cookieBehavior preference are set out below:
“0″ All cookies are allowed. (Default)
“1″ Only cookies from the originating server are allowed.
“2″ No cookies are allowed.

Mozilla Firefox 1.5

Click on Tools, then Options (or Edit | Preferences on Linux)

Select the Privacy icon in the left-hand panel

Click on Cookies.

Choose your preferred settings (You can configure which sites are allowed to set cookies, how long to keep them for, and view and manage your existing cookies).

Mozilla Firefox 1.0

Click on Tools, then Options

Select the Privacy icon in the left-hand panel

Click on Cookies.

Choose your preferred settings.