This article explains the settings available in the Security panel of the Thunderbird {for win}Options{/for}{for mac,linux}Preferences{/for} window. The Security panel contains {for win}options{/for}{for mac,linux}preferences{/for} related to keeping you safe on the Internet. __TOC__ =Junk tab= {for win}[[Image:tb52-security-junk-win10]]{/for} {for mac}[[Image:tb52-security-junk-mac]]{/for} Thunderbird includes the ability to identify and filter out junk messages. These settings help you customize how junk mail filtering behaves. For more information, see [[Thunderbird and Junk / Spam Messages]]. * '''When I mark messages as junk''': Junk Mail Filtering can be used to filter out any junk messages from your inbox. In some cases, you will want to mark a message as junk. Using this {for win}option{/for}{for mac,linux}preference{/for}, you can determine where the message will go when you mark is as junk. * '''Mark messages determined to be junk as read''': With this {for win}option{/for}{for mac,linux}preference{/for} enabled, Thunderbird will mark a message as read when it is marked as junk. * '''Enable adaptive junk filter logging''': This {for win}option{/for}{for mac,linux}preference{/for} allows you to enable and disable logging of junk mail filtering, as well as view the log itself. Normally, it should not be necessary to enable logging. =E-mail Scams tab= {for win}[[Image:tb52-security-scams-win10]]{/for} {for mac}[[Image:tb52-security-scams-mac]]{/for} *'''Tell me if the message I'm reading is a suspected email scam''': A scam message contains material designed to trick you into disclosing personal information. With this {for win}option{/for}{for mac,linux}preference{/for} enabled, Thunderbird will display a warning if it detects the message you are reading is a scam. For more information, see [[Thunderbird’s Scam Detection]]. = Antivirus tab = {for win}[[Image:tb52-security-antivirus-win10]]{/for} {for mac}[[Image:tb52-security-antivirus-mac]]{/for} *'''Allow antivirus clients to quarantine individual incoming messages''': By default, Thunderbird stores mail folders locally in single files (For example, there's a file called Inbox). If your antivirus software detects a virus in a new incoming message, it will quarantine the entire inbox file. With this {for win}option{/for}{for mac,linux}preference{/for} enabled, incoming messages will be stored in a temporary folder on your computer, before being moved to your Thunderbird inbox. That way, your antivirus software will only quarantine the single message. = Passwords tab = {for win}[[Image:tb52-security-passwords-win10]]{/for} {for mac}[[Image:tb52-security-passwords-mac]]{/for} The Thunderbird Password Manager securely stores the usernames and passwords you use to access servers, so you don't have to re-enter them when you check for new messages. Click {button Saved Passwords} to view, edit, or remove the usernames and passwords that Thunderbird has saved for you. * '''Use a master password''': If you share a computer, and don't want others to see your stored passwords, enable this {for win}option{/for}{for mac,linux}preference{/for} to make Thunderbird require you to enter a master password in order to view or use the passwords you've told Thunderbird to remember. To edit your remove your master password, click {button Change Master Password}. For more information, see [[Protect your Thunderbird passwords with a Master Password]]

This article explains the settings available in the Security panel of the Thunderbird OptionsPreferences window. The Security panel contains optionspreferences related to keeping you safe on the Internet.

Junk tab

Thunderbird includes the ability to identify and filter out junk messages. These settings help you customize how junk mail filtering behaves. For more information, see Thunderbird and Junk / Spam Messages.

• When I mark messages as junk: Junk Mail Filtering can be used to filter out any junk messages from your inbox. In some cases, you will want to mark a message as junk. Using this optionpreference, you can determine where the message will go when you mark is as junk.

• Mark messages determined to be junk as read: With this optionpreference enabled, Thunderbird will mark a message as read when it is marked as junk.

• Enable adaptive junk filter logging: This optionpreference allows you to enable and disable logging of junk mail filtering, as well as view the log itself. Normally, it should not be necessary to enable logging.

E-mail Scams tab

• Tell me if the message I'm reading is a suspected email scam: A scam message contains material designed to trick you into disclosing personal information. With this optionpreference enabled, Thunderbird will display a warning if it detects the message you are reading is a scam. For more information, see Thunderbird’s Scam Detection.

Antivirus tab

• Allow antivirus clients to quarantine individual incoming messages: By default, Thunderbird stores mail folders locally in single files (For example, there's a file called Inbox). If your antivirus software detects a virus in a new incoming message, it will quarantine the entire inbox file. With this optionpreference enabled, incoming messages will be stored in a temporary folder on your computer, before being moved to your Thunderbird inbox. That way, your antivirus software will only quarantine the single message.

Passwords tab

The Thunderbird Password Manager securely stores the usernames and passwords you use to access servers, so you don't have to re-enter them when you check for new messages. Click Saved Passwords to view, edit, or remove the usernames and passwords that Thunderbird has saved for you.

• Use a master password: If you share a computer, and don't want others to see your stored passwords, enable this optionpreference to make Thunderbird require you to enter a master password in order to view or use the passwords you've told Thunderbird to remember. To edit your remove your master password, click Change Master Password. For more information, see Protect your Thunderbird passwords with a Primary Password