| **[`DisableMasterPasswordCreation`](#disablemasterpasswordcreation)** | Remove the master password functionality.
| **[`DisableAppUpdate`](#disableappupdate)** | Turn off application updates.
| **[`DisableBuiltinPDFViewer`](#disablebuiltinpdfviewer)** | Disable the built in PDF viewer.
+| **[`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.
| **[`DisableFeedbackCommands`](#disablefeedbackcommands)** | Disable the menus for reporting sites.
}
}
```
+### DisabledCiphers
+Disable specific cryptographic ciphers.
+
+**Compatibility:** Firefox 68.8, Firefox ESR 76\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_DHE_RSA_WITH_AES_128_CBC_SHA = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_DHE_RSA_WITH_AES_256_CBC_SHA = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_RSA_WITH_AES_128_CBC_SHA = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_RSA_WITH_AES_256_CBC_SHA = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_RSA_WITH_3DES_EDE_CBC_SHA = 0x1 | 0x0
+```
+#### macOS
+```
+<dict>
+ <key>DisabledCiphers</key>
+ <dict>
+ <key>TLS_DHE_RSA_WITH_AES_128_CBC_SHA</key>
+ <true/> | <false/>
+ <key>TLS_DHE_RSA_WITH_AES_256_CBC_SHA</key>
+ <true/> | <false/>
+ <key>TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA</key>
+ <true/> | <false/>
+ <key>TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA</key>
+ <true/> | <false/>
+ <key>TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256</key>
+ <true/> | <false/>
+ <key>TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256</key>
+ <true/> | <false/>
+ <key>TLS_RSA_WITH_AES_128_CBC_SHA</key>
+ <true/> | <false/>
+ <key>TLS_RSA_WITH_AES_256_CBC_SHA</key>
+ <true/> | <false/>
+ <key>TLS_RSA_WITH_3DES_EDE_CBC_SHA</key>
+ <true/> | <false/>
+ </dict>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisabledCiphers" {
+ "TLS_DHE_RSA_WITH_AES_128_CBC_SHA": true | false,
+ "TLS_DHE_RSA_WITH_AES_256_CBC_SHA": true | false,
+ "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA": true | false,
+ "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA": true | false,
+ "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256": true | false,
+ "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256": true | false,
+ "TLS_RSA_WITH_AES_128_CBC_SHA": true | false,
+ "TLS_RSA_WITH_AES_256_CBC_SHA": true | false,
+ "TLS_RSA_WITH_3DES_EDE_CBC_SHA": true | false
+ }
+ }
+}
+```
### DisableDefaultBrowserAgent
Prevent the default browser agent from taking any actions. Only applicable to Windows; other platforms don’t have the agent.
| If set to Select Automatically, Firefox automatically chooses the default personal certificate.
| security.mixed_content.block_active_content | boolean | Firefox 70, Firefox ESR 68.2 | true
| If false, mixed active content (HTTP and HTTPS) is not blocked.
-| security.osclientcerts.autoload | boolean | Firefox 72, Firefox ESR 68.4 (Windows only) | false
+| security.osclientcerts.autoload | boolean | Firefox 72 (Windows), Firefox 75 (macOS) | false
| If true, client certificates are loaded from the operating system certificate store.
| security.ssl.errorReporting.enabled | boolean | Firefox 68, Firefox ESR 68 | true
| If false, SSL errors cannot be sent to Mozilla.
}
}
```
-<a name="SanitizeOnShutdown">
+<a name="SanitizeOnShutdown"></a>
+
### SanitizeOnShutdown (Selective)
Clear data on shutdown. Choose from Cache, Cookies, Download History, Form & Search History, Browsing History, Active Logins, Site Preferences and Offline Website Data.
}
}
```
-<a name="SearchEngines">
+<a name="SearchEngines"></a>
+
### SearchEngines (This policy is only available on the ESR.)
### SearchEngines | Default