A cookie is a small amount of information on your computer that is used by some web sites. For a brief overview, see What Are Cookies and How Do They Work?
Before loading a web page that uses cookies, your browser handles the page's cookies by doing two things:
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You can specify how cookies should be handled by setting your cookie preferences and by using the Cookie Manager.
To change your cookie preferences:
For more information about the effect of each setting, see Privacy & Security Preferences - Cookies.
To control cookies on a site-by-site basis:
Alternatively, if you have selected "Warn me before storing a cookie" in Privacy & Security Preferences - Cookies, you will be warned (while browsing) that a web site is asking to set a cookie. When you see such a warning, you can click Yes to allow or No to deny the cookie. You can also select the option for your browser to "Remember this decision."
If you select "Remember this decision," you will not be warned the next time that site tries to set or modify a cookie, and your "yes" or "no" response will still be in effect.
If you wish to change a remembered response later, use Cookie Manager to edit your list of automatically stored cookies.
To stop automatically accepting cookies from a site:
To view detailed information about cookies:
For more information about the information displayed, see Stored Cookies.
Important: To remove cookies, follow the steps in this section. Do not try to edit the cookies file on your computer.
To remove one or more cookies from your computer:
To prevent the removed cookies from being reaccepted later, click the checkbox labeled "Don't allow removed cookies to be reaccepted later." Click OK when you're through.
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A web site's privacy policy tells you what kind of information the site collects, to whom it gives that information, and how it uses the information. Some web sites publish privacy policies that determine how your browser will handle cookies according to the privacy level you set.
To set the privacy level you want your browser to enforce for all web sites:
Your browser will handle cookies according to the settings under Cookie Acceptance Policy. For the low, medium, and high options, these settings are standardized.
"First party cookies" are cookies set by the site you are visiting. "Third party cookies," also known as foreign cookies, are set by a sites other than the one you are viewing, and are therefore generally considered more dangerous.
When the Custom option is set, you can define your own privacy level. For each type of site listed under Cookie Acceptance Policy, and for each type of cookie, you can set whether you want the Cookie Manager to accept the cookie permanently, reject it permanently, or accept it just for the current session (that is, until you exit the browser).
For more details, see Privacy Levels.
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This section describes how to set your cookie preferences and control other aspects of cookie handling.
For step-by-step descriptions of various tasks related to cookies, see Using the Cookie Manager.
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This section describes how to use the Cookies preferences panel. If you're not already viewing it, follow these steps:
Cookies help web sites keep track of information for you, such as the contents of your on-line shopping cart or which cities' weather you want to know about. For a brief overview, see What Are Cookies and How Do They Work?
You can choose one of these options:
Disable cookies: Choose this to refuse all cookies.
If you enable cookies, you can also select the following preferences:
Click these buttons to get more information about your stored cookies and the ways they are used by your browser:
This section describes how to use the Stored Cookies tab of the Cookie Manager. If you're not already viewing it, follow these steps:
The Stored Cookies tab lists all the cookies stored on your computer and the sites they belong to. When you select a cookie in this list, information about that cookie appears:
Item | Explanation |
Name | The name assigned to the cookie by its originator. |
Information | A string of characters contining the information a web site tracks for you. It might contain a user key or name by which you are identified to the web site, information about your interests, and so forth. |
Host or Domain | Indicates whether the cookie is a host cookie or a domain cookie and provides information about the host or domain.
A host cookie is sent back, during subsequent visits, only to the server that set it. A server is a computer on the Internet. A web site resides on one or more servers. A domain cookie is sent back to any site that's in the same domain as the site that set it. A site's domain is the part of its URL that contains the name of an organization, business, or school—such as netscape.com or washington.org. |
Path | This is the file pathway. If a cookie comes from a particular part of a web site, instead of the main page, a path is given. |
Server Secure | This indicates whether the server that originally sent the cookie uses a "secure" (HTTPS) connection. When this field is "Yes" it means that the browser checks the connection whenever the server asks for a cookie and will not send it unless the connection is encrypted. |
Expires | The date and time at which the cookie will be deactivated. The browser regularly removes expired cookies from your computer. |
To remove cookies, click one of these buttons:
This section describes how to use the Cookie Sites tab of the Cookie Manager. If you're not already viewing it, follow these steps:
When the "Warn me before storing a cookie" option is selected in the Privacy & Security Preferences - Cookies, you will be warned (while browsing) each time a web site requests permission to set a cookie. The warning allows you to accept or deny the cookie. The warning also allows you to select an option for your browser to "Remember this decision."
The Cookie Sites tab of the Cookie Manager lists the sites for which your decisions have been remembered, and what your decisions were. It also allows you to remove sites from the list, so that the Cookie Manager no longer remembers your decisions about them:
Once you've removed a site from this list, Cookie Manager remembers nothing about it. When the "Warn me before storing a cookie" option is selected in the Cookies preferences panel, you will be again be warned when the web site you removed from this list requests permission to set a cookie.
This section describes how to use the Privacy Levels window. If you're not already viewing it, follow these steps:
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The level of privacy you set here determines how your browser treats cookies according to privacy policies published by some web sites and the settings displayed under Cookie Acceptance Policy for first party and third party cookies.
"First party cookies" are cookies set by the site you are visiting. "Third party cookies," also known as foreign cookies, are set by a site other than the one you are viewing, and are considered more dangerous than first party cookies.
You can select one of the following privacy levels:
If you select the "custom" level of privacy in the top portion of the Privacy Levels dialog box, you can choose from three different settings in each of the eight categories shown in the bottom portion. You can choose one of these options for each category:
There are four categories for each of the two types of cookies shown:
Many web sites require you to type a user name and password before you can enter the site. For instance, personalized pages and web sites containing your financial information require you to log in.
The user name and password you use at a particular site can be read by the site's administrator. If this concerns you, you may wish to use a different password at every site with which you register. Unfortunately, it is very difficult to remember every single password you've ever used.
Password Manager can help you by storing your user names and passwords on your computer's hard disk, and entering them for you automatically when you visit such sites.
In this section: Using Password Manager to Remember User Names and Passwords Entering User Names and Passwords Automatically Turning Password Manager On and Off |
When Password Manager is turned on, it gives you an opportunity to save usernames and passwords that you enter while using the Internet.
For example, when you log onto your email account or a web site that requries a password, a dialog box appears asking, "Do you want Password Manager to remember this logon?" When you see this dialog box, you can click one of the following buttons:
Password Manager saves your user names and passwords on your own computer in a file that's difficult, but not impossible, for an intruder to read. See Encrypting Stored Sensitive Information for information on protecting your stored user names and passwords with encryption technology.
If the Password Manager dialog box described above does not appear when you click Submit after typing your username and password, Password Manager may be turned off. To turn it on, follow the instructions at Turning Password Manager On and Off.
If you use Password Manager to remember your user name and password for a web site, the next time you visit the site, Password Manager will automatically fill in your user name and password on the site's log in screen.
Password Manager is on by default. To turn it off:
To turn Password Manager on, follow steps 1 and 2 above, but select the checkbox in step 3 rather than deselecting it.
To see a list of the user names and passwords you have stored:
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Many web pages contain forms for you to fill out—order forms for online shopping, information databases, and so forth.
Form Manager can save the personal data you enter into online forms, such as your name, address, phone, credit card numbers, and so on. Then, when a web site presents you with a form, Form Manager can fill it in automatically.
In this section: Filling Out Forms Automatically Turning Off Form Manager Notification Editing Stored Site Information |
When you fill out an online form, Form Manager normally detects the form and gives you an opportunity to save the personal data you entered into it. Soon, Form Manager will have enough data to begin filling out forms automatically.
There are two ways to save personal data:
Note that Form Manager prompts you only if its automatic notification feature is turned on. For details, see Form Manager's Automatic Notification Feature.
When Form Manager asks if you want to save values that you've entered in a form (the first method described above), it gives you three options:
You may want to do this if you want to ensure that you'll always have to enter sensitive information manually at a particular sit. You can change your mind later if you like; for details, see Editing Stored Site Information.
Form Manager stores your personal data on your own computer in a file that's difficult, but not impossible, for an intruder to read. See Encrypting Stored Sensitive Information for information on protecting your information with encryption technology.
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To fill out an online form automatically:
Note that the Prefill Form menu item won't be accessible if the Form Manager hasn't yet stored any relevant information.
For more details on using the Prefill Form Data dialog box, see Prefill Form Data.
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Form Manager is set to prompt you to save information whenever it detects that you have filled out an online form. To stop these messages from appearing on your screen:
Note that deselecting this option turns off the notification feature, but not Form Manager. The form data it may have already collected is still available.
You can still pull down the Edit menu and choose Save Form Data any time you want to save information from a form you've just filled in, or choose Prefill Form to fill in a form automatically.
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To examine or edit personal data that Form Manager has saved:
The Form Manager dialog box for editing data appears. Click the subcategories on the left to view or edit the corresponding data. To view subcategories that aren't visible, double-click a category to expand the list.
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As explained in Saving Form Data, you can choose "Never for this site" when Form Manager prompts you to save data you've entered in a form. Similarly, you can choose not to display the Prefill Form Data dialog box on a site-by-site basis.
Form Manager lets you change your mind about these decisions at any time. To view site-specific information about your saved form data:
The Form Manager dialog box for managing sites appears:
To remove a site from either list and thus restore the default behavior, select the site and click Remove. For more details, see Form Manager - Sites.
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If you provide personal information such as your name, phone number, or email address to a web site, it is free to store that information in its database and use it later. A web site might use this information to improve its service to you or target advertising to your interests. A web site could sell the information it has gathered to other companies.
One way to find out how a web site uses the information it gathers is to check its privacy policy.
Before providing personal information on an online form, you must decide whether or not you trust the company—just as you judge whether or not you trust a catalog company before you provide your credit card number on the company's order form.
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If you use Password Manager or Form Manager to save passwords and personal data, then this sensitive information is stored on your computer in a file that's difficult, but not impossible, for an intruder to read.
If you are not concerned about unauthorized use of your computer, you may not need further security. However, if your computer is in an area where unauthorized people have access to it, it's possible for a determined person to read the file containing your sensitive information.
For a greater degree of security, you may want to protect the file with encryption. Encryption makes it nearly impossible for an unauthorized person to view your stored sensitive information.
In this section: Encrypting Stored Sensitive Information |
To turn on encryption for your stored sensitive information:
If you choose to encrypt your stored sensitive information, you'll need a master password. With encryption selected, you'll be asked for your master password at least once during a browser session in which you access any of your stored sensitive information.
If you choose encryption, but don't already have a master password, you'll be prompted to create one the first time you try to save or retrieve your sensitive information.
If your master password has not previously been set, you can set it yourself:
Make sure your new password is difficult to guess. For some guidelines, see the online document Choosing a Good Password.
To change your master password:
Make sure your new password is difficult to guess. For some guidelines, see the online document Choosing a Good Password.
Normally, you are asked for your master password once during each browser session during which you access any of your stored sensitive information. However, you can log out of your master password so that it must be entered again before any sensitive information can be stored or retrieved. This is useful if you are going to leave your computer unattended for a period of time.
To log out of your master password:
If you forget your master password, you won't be able to access any of the stored password and form data that it protects. Your master password is your most important password. Make sure you remember it or record it in a safe place.
As a last resort, it's possible to reset your master password if you are sure you can't remember it. However, resetting your master password permanently erases all the web passwords, email passwords, and form data saved on your behalf by Password Manager and Form Manager. You will also lose all your personal certificates associated with the software security device.
Before taking this drastic action, read Reset Master Password.
If you are sure you can't remember or retrieve your master password, follow these instructions to reset it:
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For more information about the Cookie Manager, see Using the Cookie Manager.
If you wish, you can choose not to download any images when you browse the web. This greatly restricts what you can view online, but may be helpful if you have a slow connection and wish to shorten the time it takes web pages to load.
You can also control how frequently animated images repeat their animation, or turn off animation completely.
The next section describes how to control these image settings.
This section describes how to set preferences for images. To view the preference settings for images:
Image acceptance preferences allow you to control whether Navigator displays images:
These settings control how many times animated images repeat their animation:
When you fill out an online form, Form Manager normally detects the form and, when you click Submit, gives you an opportunity to save the data you entered.
This section describes the preferences and other settings that control the way Form Manager works.
For step-by-step instructions on using these settings, see Using the Form Manager.
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This section describes how to use the Forms preferences panel. If you are not already viewing it, follow these steps:
When you fill out an online form and click Submit, Form Manager normally displays a dialog box that asks if you want it to save the form data you just entered.
If you click Yes at least some of the time, Form Manager will soon have enough data to begin filling out forms automatically.
Form preferences allow you to
Note that deselecting this option turns off the notification feature, but not Form Manager. The form data it may have already collected is still available. You can still pull down the Edit menu and choose Save Form Data any time you want to save information from a form you've just filled in, or choose Prefill Form to fill in a form automatically.
This section describes how to use the window that allows you to edit data saved on your behalf by the Form Manager. If you are not already viewing this window, follow these steps:
The Form Manager window for managing stored form data allows you to perform two tasks:
For step-by-step instructions on using the Form Manager, see Using the Form Manager.
This section describes how to use the dialog box that allows you to edit data saved on your behalf by Form Manager. If you are not already viewing it, follow these steps:
The Form Manager window for managing sites has two tabs:
If you remove an entry from this list, Form Manager will again give you an opportunity to review form data for that site before filling it in.
If you remove an entry from this list, Form Manager will again ask whether to store form data when you fill in forms at that site (assuming that the main Form Manager notification option has been selected in Privacy & Security Preferences - Forms).
Regardless of which tab you are viewing, you can remove entries from the list as follows:
See the descriptions of each tab above for the consequences of removing entries.
For step-by-step instructions on working with form data, see Using the Form Manager.
This section describes the window that normally appears when you open the Edit menu and choose Prefill Form Data.
However, the Prefill Form Data menu item is enabled only if you have previously used Form Manager to save some form data and are now viewing a web page that is requesting some of the same data. For step-by-step instructions on working with form data, see Using the Form Manager.
The Prefill Form Data window allows you to perform these actions:
If you change your mind about this decision, you can restore the Prefill Form Data window for this web site. For details, see Form Manager - Sites.
31 January 2002
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