Disable specific cryptographic ciphers, listed below.
```
-TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
-TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
-TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
-TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
-TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
-TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
-TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
-TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
-TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
-TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
TLS_DHE_RSA_WITH_AES_128_CBC_SHA
TLS_DHE_RSA_WITH_AES_256_CBC_SHA
-TLS_RSA_WITH_AES_128_GCM_SHA256
-TLS_RSA_WITH_AES_256_GCM_SHA384
TLS_RSA_WITH_AES_128_CBC_SHA
TLS_RSA_WITH_AES_256_CBC_SHA
+TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
+TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
+TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
+TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA
+TLS_RSA_WITH_AES_128_GCM_SHA256 (Firefox 78)
+TLS_RSA_WITH_AES_256_GCM_SHA384 (Firefox 78)
+TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 (Firefox 97 and Firefox ESR 91.6)
+TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (Firefox 97 and Firefox ESR 91.6)
+TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 (Firefox 97 and Firefox ESR 91.6)
+TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Firefox 97 and Firefox ESR 91.6)
+TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA (Firefox 97 and Firefox ESR 91.6)
+TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA (Firefox 97 and Firefox ESR 91.6)
+TLS_CHACHA20_POLY1305_SHA256 (Firefox 138, Firefox ESR 128.10)
+TLS_AES_128_GCM_SHA256 (Firefox 138, Firefox ESR 128.10)
+TLS_AES_256_GCM_SHA384 (Firefox 138, Firefox ESR 128.10)
```
-**Preferences Affected:** `security.ssl3.ecdhe_rsa_aes_128_gcm_sha256`, `security.ssl3.ecdhe_ecdsa_aes_128_gcm_sha256`, `security.ssl3.ecdhe_ecdsa_chacha20_poly1305_sha256`, `security.ssl3.ecdhe_rsa_chacha20_poly1305_sha256`, `security.ssl3.ecdhe_ecdsa_aes_256_gcm_sha384`, `security.ssl3.ecdhe_rsa_aes_256_gcm_sha384`, `security.ssl3.ecdhe_rsa_aes_128_sha`, `security.ssl3.ecdhe_ecdsa_aes_128_sha`, `security.ssl3.ecdhe_rsa_aes_256_sha`, `security.ssl3.ecdhe_ecdsa_aes_256_sha`, `security.ssl3.dhe_rsa_aes_128_sha`, `security.ssl3.dhe_rsa_aes_256_sha`, `security.ssl3.rsa_aes_128_gcm_sha256`, `security.ssl3.rsa_aes_256_gcm_sha384`, `security.ssl3.rsa_aes_128_sha`, `security.ssl3.rsa_aes_256_sha`, `security.ssl3.deprecated.rsa_des_ede3_sha`
+**Preferences Affected:** `security.ssl3.ecdhe_rsa_aes_128_gcm_sha256`, `security.ssl3.ecdhe_ecdsa_aes_128_gcm_sha256`, `security.ssl3.ecdhe_ecdsa_chacha20_poly1305_sha256`, `security.ssl3.ecdhe_rsa_chacha20_poly1305_sha256`, `security.ssl3.ecdhe_ecdsa_aes_256_gcm_sha384`, `security.ssl3.ecdhe_rsa_aes_256_gcm_sha384`, `security.ssl3.ecdhe_rsa_aes_128_sha`, `security.ssl3.ecdhe_ecdsa_aes_128_sha`, `security.ssl3.ecdhe_rsa_aes_256_sha`, `security.ssl3.ecdhe_ecdsa_aes_256_sha`, `security.ssl3.dhe_rsa_aes_128_sha`, `security.ssl3.dhe_rsa_aes_256_sha`, `security.ssl3.rsa_aes_128_gcm_sha256`, `security.ssl3.rsa_aes_256_gcm_sha384`, `security.ssl3.rsa_aes_128_sha`, `security.ssl3.rsa_aes_256_sha`, `security.ssl3.deprecated.rsa_des_ede3_sha`, `security.tls13.chacha20_poly1305_sha256`, `security.tls13.aes_128_gcm_sha256`, `security.tls13.aes_256_gcm_sha384`
---
**Note:**
This policy was updated in Firefox 78 to allow enabling ciphers as well. Setting the value to true disables the cipher, setting the value to false enables the cipher. Previously setting the value to true or false disabled the cipher.
---
-**Compatibility:** Firefox 76, Firefox ESR 68.8 (TLS_RSA_WITH_AES_128_GCM_SHA256 and TLS_RSA_WITH_AES_256_GCM_SHA384 were added in Firefox 78, TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA38, TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, and TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 were added in Firefox 97 and Firefox 91.6)\
+**Compatibility:** Firefox 76, Firefox ESR 68.8\
**CCK2 Equivalent:** N/A\
**Preferences Affected:** N/A
<string id="SUPPORTED_FF131">Firefox 131 oder höher, Firefox 128.3 ESR oder höhe</string>
<string id="SUPPORTED_FF137_ONLY">Firefox 137 oder höher</string>
<string id="SUPPORTED_FF138_ONLY">Firefox 138 oder höher</string>
+ <string id="SUPPORTED_FF138">Firefox 138 oder höher, Firefox 128.10 ESR oder höhe</string>
<string id="firefox">Firefox</string>
<string id="Permissions_group">Berechtigungen</string>
<string id="Camera_group">Kamera</string>
<string id="DisabledCiphers_TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256">TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256</string>
<string id="DisabledCiphers_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384">TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384</string>
<string id="DisabledCiphers_TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256">TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256</string>
+ <string id="DisabledCiphers_TLS_CHACHA20_POLY1305_SHA256">TLS_CHACHA20_POLY1305_SHA256</string>
+ <string id="DisabledCiphers_TLS_AES_128_GCM_SHA256">TLS_AES_128_GCM_SHA256</string>
+ <string id="DisabledCiphers_TLS_AES_256_GCM_SHA384">TLS_AES_256_GCM_SHA384</string>
<string id="DisabledCiphers_Explain">Wenn diese Richtlinieneinstellung aktiviert ist, ist die ausgewählte Verschlüsselung deaktiviert.
Wenn diese Richtlinieneinstellung deaktiviert ist, ist der ausgewählte Verschlüsselung aktiviert.
<string id="SUPPORTED_FF131">Firefox 131 or later, Firefox 128.3 ESR or later</string>
<string id="SUPPORTED_FF137_ONLY">Firefox 137 or later</string>
<string id="SUPPORTED_FF138_ONLY">Firefox 138 or later</string>
+ <string id="SUPPORTED_FF138">Firefox 138, Firefox 128.10 ESR</string>
<string id="firefox">Firefox</string>
<string id="Permissions_group">Permissions</string>
<string id="Camera_group">Camera</string>
<string id="DisabledCiphers_TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256">TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256</string>
<string id="DisabledCiphers_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384">TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384</string>
<string id="DisabledCiphers_TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256">TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256</string>
+ <string id="DisabledCiphers_TLS_CHACHA20_POLY1305_SHA256">TLS_CHACHA20_POLY1305_SHA256</string>
+ <string id="DisabledCiphers_TLS_AES_128_GCM_SHA256">TLS_AES_128_GCM_SHA256</string>
+ <string id="DisabledCiphers_TLS_AES_256_GCM_SHA384">TLS_AES_256_GCM_SHA384</string>
<string id="DisabledCiphers_Explain">If this policy is enabled, the corresponding cipher is disabled.
If this policy is disabled, the corresponding cipher is enabled.
<decimal value="0"/>
</disabledValue>
</policy>
+ <policy name="DisabledCiphers_TLS_CHACHA20_POLY1305_SHA256" class="Both" displayName="$(string.DisabledCiphers_TLS_CHACHA20_POLY1305_SHA256)" explainText="$(string.DisabledCiphers_Explain)" key="Software\Policies\Mozilla\Firefox\DisabledCiphers" valueName="TLS_CHACHA20_POLY1305_SHA256">
+ <parentCategory ref="DisabledCiphers"/>
+ <supportedOn ref="SUPPORTED_FF138"/>
+ <enabledValue>
+ <decimal value="1"/>
+ </enabledValue>
+ <disabledValue>
+ <decimal value="0"/>
+ </disabledValue>
+ </policy>
+ <policy name="DisabledCiphers_TLS_AES_128_GCM_SHA256" class="Both" displayName="$(string.DisabledCiphers_TLS_AES_128_GCM_SHA256)" explainText="$(string.DisabledCiphers_Explain)" key="Software\Policies\Mozilla\Firefox\DisabledCiphers" valueName="TLS_AES_128_GCM_SHA256">
+ <parentCategory ref="DisabledCiphers"/>
+ <supportedOn ref="SUPPORTED_FF138"/>
+ <enabledValue>
+ <decimal value="1"/>
+ </enabledValue>
+ <disabledValue>
+ <decimal value="0"/>
+ </disabledValue>
+ </policy>
+ <policy name="DisabledCiphers_TLS_AES_256_GCM_SHA384" class="Both" displayName="$(string.DisabledCiphers_TLS_AES_256_GCM_SHA384)" explainText="$(string.DisabledCiphers_Explain)" key="Software\Policies\Mozilla\Firefox\DisabledCiphers" valueName="TLS_AES_256_GCM_SHA384">
+ <parentCategory ref="DisabledCiphers"/>
+ <supportedOn ref="SUPPORTED_FF138"/>
+ <enabledValue>
+ <decimal value="1"/>
+ </enabledValue>
+ <disabledValue>
+ <decimal value="0"/>
+ </disabledValue>
+ </policy>
<policy name="EncryptedMediaExtensions_Enabled" class="Both" displayName="$(string.EncryptedMediaExtensions_Enabled)" explainText="$(string.EncryptedMediaExtensions_Enabled_Explain)" key="Software\Policies\Mozilla\Firefox\EncryptedMediaExtensions" valueName="Enabled">
<parentCategory ref="EncryptedMediaExtensions"/>
<supportedOn ref="SUPPORTED_FF77"/>
<string id="SUPPORTED_FF131">Firefox 131 ou supérieur, Firefox 128.3 ESR ou supérieur</string>
<string id="SUPPORTED_FF137_ONLY">Firefox 137 ou supérieur</string>
<string id="SUPPORTED_FF138_ONLY">Firefox 138 ou supérieur</string>
+ <string id="SUPPORTED_FF138">Firefox 138 ou supérieur, Firefox 128.10 ESR ou supérieur</string>
<string id="firefox">Firefox</string>
<string id="Permissions_group">Permissions</string>
<string id="Camera_group">Caméra</string>
<string id="DisabledCiphers_TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256">TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256</string>
<string id="DisabledCiphers_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384">TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384</string>
<string id="DisabledCiphers_TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256">TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256</string>
+ <string id="DisabledCiphers_TLS_CHACHA20_POLY1305_SHA256">TLS_CHACHA20_POLY1305_SHA256</string>
+ <string id="DisabledCiphers_TLS_AES_128_GCM_SHA256">TLS_AES_128_GCM_SHA256</string>
+ <string id="DisabledCiphers_TLS_AES_256_GCM_SHA384">TLS_AES_256_GCM_SHA384</string>
<string id="DisabledCiphers_Explain">Si cette stratégie est activée, le chiffrement correspondant est désactivé.
Si cette stratégie est désactivée, le chiffrement correspondant est activé.
<string id="SUPPORTED_FF131">Firefox 131 или более поздние версии, Firefox 128.3 ESR или более поздние версии</string>
<string id="SUPPORTED_FF137_ONLY">Firefox 137 или более поздние версии</string>
<string id="SUPPORTED_FF138_ONLY">Firefox 138 или более поздние версии</string>
+ <string id="SUPPORTED_FF138">Firefox 138 или более поздние версии, Firefox 128.10 ESR или более поздние версии</string>
<string id="firefox">Firefox</string>
<string id="Permissions_group">Разрешения</string>
<string id="Camera_group">Камера</string>
<string id="DisabledCiphers_TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256">TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256</string>
<string id="DisabledCiphers_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384">TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384</string>
<string id="DisabledCiphers_TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256">TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256</string>
+ <string id="DisabledCiphers_TLS_CHACHA20_POLY1305_SHA256">TLS_CHACHA20_POLY1305_SHA256</string>
+ <string id="DisabledCiphers_TLS_AES_128_GCM_SHA256">TLS_AES_128_GCM_SHA256</string>
+ <string id="DisabledCiphers_TLS_AES_256_GCM_SHA384">TLS_AES_256_GCM_SHA384</string>
<string id="DisabledCiphers_Explain">Если эта политика включена, соответствующий шифр отключен.
Если эта политика отключена, соответствующий шифр включен.