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+4 add-ons to improve your privacy on Thunderbird
+======
+
+![](https://fedoramagazine.org/wp-content/uploads/2017/08/tb-privacy-addons-816x345.jpg)
+Thunderbird is a popular free email client developed by [Mozilla][1]. Similar to Firefox, Thunderbird offers a large choice of add-ons for extra features and customization. This article focuses on four add-ons to improve your privacy.
+
+### Enigmail
+
+Encrypting emails using GPG (GNU Privacy Guard) is the best way to keep their contents private. If you aren’t familiar with GPG, [check out our primer right here][2] on the Magazine.
+
+[Enigmail][3] is the go-to add-on for using OpenPGP with Thunderbird. Indeed, Enigmail integrates well with Thunderbird, and lets you encrypt, decrypt, and digitally sign and verify emails.
+
+### Paranoia
+
+[Paranoia][4] gives you access to critical information about your incoming emails. An emoticon shows the encryption state between servers an email traveled through before reaching your inbox.
+
+A yellow, happy emoticon tells you all connections were encrypted. A blue, sad emoticon means one connection was not encrypted. Finally, a red, scared emoticon shows on more than one connection the message wasn’t encrypted.
+
+More details about these connections are available, so you can check which servers were used to deliver the email.
+
+### Sensitivity Header
+
+[Sensitivity Header][5] is a simple add-on that lets you select the privacy level of an outgoing email. Using the option menu, you can select a sensitivity: Normal, Personal, Private and Confidential.
+
+Adding this header doesn’t add extra security to email. However, some email clients or mail transport/user agents (MTA/MUA) can use this header to process the message differently based on the sensitivity.
+
+Note that this add-on is marked as experimental by its developers.
+
+### TorBirdy
+
+If you’re really concerned about your privacy, [TorBirdy][6] is the add-on for you. It configures Thunderbird to use the [Tor][7] network.
+
+TorBirdy offers less privacy on email accounts that have been used without Tor before, as noted in the [documentation][8].
+
+> Please bear in mind that email accounts that have been used without Tor before offer **less** privacy/anonymity/weaker pseudonyms than email accounts that have always been accessed with Tor. But nevertheless, TorBirdy is still useful for existing accounts or real-name email addresses. For example, if you are looking for location anonymity — you travel a lot and don’t want to disclose all your locations by sending emails — TorBirdy works wonderfully!
+
+Note that to use this add-on, you must have Tor installed on your system.
+
+Photo by [Braydon Anderson][9] on [Unsplash][10].
+
+
+--------------------------------------------------------------------------------
+
+via: https://fedoramagazine.org/4-addons-privacy-thunderbird/
+
+作者：[Clément Verna][a]
+选题：[lujun9972](https://github.com/lujun9972)
+译者：[译者ID](https://github.com/译者ID)
+校对：[校对者ID](https://github.com/校对者ID)
+
+本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
+
+[a]:https://fedoramagazine.org
+[1]:https://www.mozilla.org/en-US/
+[2]:https://fedoramagazine.org/gnupg-a-fedora-primer/
+[3]:https://addons.mozilla.org/en-US/thunderbird/addon/enigmail/
+[4]:https://addons.mozilla.org/en-US/thunderbird/addon/paranoia/?src=cb-dl-users
+[5]:https://addons.mozilla.org/en-US/thunderbird/addon/sensitivity-header/?src=cb-dl-users
+[6]:https://addons.mozilla.org/en-US/thunderbird/addon/torbirdy/?src=cb-dl-users
+[7]:https://www.torproject.org/
+[8]:https://trac.torproject.org/projects/tor/wiki/torbirdy
+[9]:https://unsplash.com/photos/wOHH-NUTvVc?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText
+[10]:https://unsplash.com/search/photos/privacy?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText