Merge pull request #1090 from dennisjackson/master

Add documentation for DisableEncryptedClientHello

diff --git a/docs/index.md b/docs/index.md
index 8eaf0ab5f2e38e8d1098d1b1519be02293673f4a..67a23bcdf5bc2591c93efc8181362e4528d71b17 100644 (file)
--- a/docs/index.md
+++ b/docs/index.md
@@ -43,6 +43,7 @@ Unfortunately, JSON files do not support comments, but you can add extra entries
 | **[`DisabledCiphers`](#disabledciphers)** | Disable ciphers.
 | **[`DisableDefaultBrowserAgent`](#disabledefaultbrowseragent)** | Prevent the default browser agent from taking any actions (Windows only).
 | **[`DisableDeveloperTools`](#disabledevelopertools)** | Remove access to all developer tools.
+| **[`DisableEncryptedClientHello`](#disableencryptedclienthello)** | Disable the TLS Feature Encrypted Client Hello (ECH).
 | **[`DisableFeedbackCommands`](#disablefeedbackcommands)** | Disable the menus for reporting sites.
 | **[`DisableFirefoxAccounts`](#disablefirefoxaccounts)** | Disable Firefox Accounts integration (Sync).
 | **[`DisableFirefoxScreenshots`](#disablefirefoxscreenshots)** | Remove access to Firefox Screenshots.
@@ -1623,6 +1624,41 @@ Value (string):
   }
 }
 ```
+### DisableEncryptedClientHello
+Disable the TLS Feature for Encrypted Client Hello. Note that TLS Client Hellos will still contain an ECH extension, but this extension will not be used by Firefox during the TLS handshake. 
+
+**Compatibility:** Firefox 127, Firefox ESR 128\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `network.dns.echconfig.enabled`, `network.dns.http3_echconfig.enabled`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\DisableEncryptedClientHello = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableEncryptedClientHello
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+#### macOS
+```
+<dict>
+  <key>DisableEncryptedClientHello</key>
+  <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+  "policies": {
+    "DisableEncryptedClientHello": true | false
+  }
+}
+```
 ### DisableFirefoxAccounts
 Disable Firefox Accounts integration (Sync).