diff --git a/fips-quic.patch b/fips-quic.patch
new file mode 100644
index 00000000..5250768c
--- /dev/null
+++ b/fips-quic.patch
@@ -0,0 +1,191 @@
+diff -up firefox-91.2.0/third_party/rust/neqo-crypto/bindings/bindings.toml.fips-quic firefox-91.2.0/third_party/rust/neqo-crypto/bindings/bindings.toml
+--- firefox-91.2.0/third_party/rust/neqo-crypto/bindings/bindings.toml.fips-quic	2021-09-28 18:41:34.000000000 +0200
++++ firefox-91.2.0/third_party/rust/neqo-crypto/bindings/bindings.toml	2021-10-20 18:50:31.960682125 +0200
+@@ -163,7 +163,7 @@ functions = [
+     "PK11_GetKeyData",
+     "PK11_GetMechanism",
+     "PK11_HPKE_Serialize",
+-    "PK11_ImportSymKey",
++    "PK11_ImportDataKey",
+     "PK11_ReadRawAttribute",
+     "PK11_ReferenceSymKey",
+     "SECITEM_FreeItem",
+@@ -196,11 +196,10 @@ variables = [
+     "CKM_AES_ECB",
+     "CKM_AES_GCM",
+     "CKM_EC_KEY_PAIR_GEN",
++    "CKM_HKDF_DERIVE",
+     "CKM_INVALID_MECHANISM",
+     "CKM_NSS_CHACHA20_CTR",
+     "CKM_NSS_CHACHA20_POLY1305",
+-    "CKM_NSS_HKDF_SHA256",
+-    "CKM_NSS_HKDF_SHA384",
+     "PK11_ATTR_INSENSITIVE",
+     "PK11_ATTR_PRIVATE",
+     "PK11_ATTR_PUBLIC",
+diff -up firefox-91.2.0/third_party/rust/neqo-crypto/src/hkdf.rs.fips-quic firefox-91.2.0/third_party/rust/neqo-crypto/src/hkdf.rs
+--- firefox-91.2.0/third_party/rust/neqo-crypto/src/hkdf.rs.fips-quic	2021-09-28 18:41:44.000000000 +0200
++++ firefox-91.2.0/third_party/rust/neqo-crypto/src/hkdf.rs	2021-10-20 18:50:31.961682135 +0200
+@@ -10,8 +10,8 @@ use crate::constants::{
+ };
+ use crate::err::{Error, Res};
+ use crate::p11::{
+-    random, Item, PK11Origin, PK11SymKey, PK11_ImportSymKey, Slot, SymKey, CKA_DERIVE,
+-    CKM_NSS_HKDF_SHA256, CKM_NSS_HKDF_SHA384, CK_ATTRIBUTE_TYPE, CK_MECHANISM_TYPE,
++    random, Item, PK11Origin, PK11SymKey, PK11_ImportDataKey, Slot, SymKey, CKA_DERIVE,
++    CKM_HKDF_DERIVE, CK_ATTRIBUTE_TYPE, CK_MECHANISM_TYPE,
+ };
+ 
+ use std::convert::TryFrom;
+@@ -52,27 +52,22 @@ fn key_size(version: Version, cipher: Ci
+ /// # Errors
+ /// Only if NSS fails.
+ pub fn generate_key(version: Version, cipher: Cipher) -> Res<SymKey> {
+-    import_key(version, cipher, &random(key_size(version, cipher)?))
++    import_key(version, &random(key_size(version, cipher)?))
+ }
+ 
+ /// Import a symmetric key for use with HKDF.
+ ///
+ /// # Errors
+ /// Errors returned if the key buffer is an incompatible size or the NSS functions fail.
+-pub fn import_key(version: Version, cipher: Cipher, buf: &[u8]) -> Res<SymKey> {
++pub fn import_key(version: Version, buf: &[u8]) -> Res<SymKey> {
+     if version != TLS_VERSION_1_3 {
+         return Err(Error::UnsupportedVersion);
+     }
+-    let mech = match cipher {
+-        TLS_AES_128_GCM_SHA256 | TLS_CHACHA20_POLY1305_SHA256 => CKM_NSS_HKDF_SHA256,
+-        TLS_AES_256_GCM_SHA384 => CKM_NSS_HKDF_SHA384,
+-        _ => return Err(Error::UnsupportedCipher),
+-    };
+     let slot = Slot::internal()?;
+     let key_ptr = unsafe {
+-        PK11_ImportSymKey(
++        PK11_ImportDataKey(
+             *slot,
+-            CK_MECHANISM_TYPE::from(mech),
++            CK_MECHANISM_TYPE::from(CKM_HKDF_DERIVE),
+             PK11Origin::PK11_OriginUnwrap,
+             CK_ATTRIBUTE_TYPE::from(CKA_DERIVE),
+             &mut Item::wrap(buf),
+diff -up firefox-91.2.0/third_party/rust/neqo-crypto/src/selfencrypt.rs.fips-quic firefox-91.2.0/third_party/rust/neqo-crypto/src/selfencrypt.rs
+--- firefox-91.2.0/third_party/rust/neqo-crypto/src/selfencrypt.rs.fips-quic	2021-09-28 18:41:41.000000000 +0200
++++ firefox-91.2.0/third_party/rust/neqo-crypto/src/selfencrypt.rs	2021-10-20 18:50:31.961682135 +0200
+@@ -41,7 +41,7 @@ impl SelfEncrypt {
+ 
+     fn make_aead(&self, k: &SymKey, salt: &[u8]) -> Res<Aead> {
+         debug_assert_eq!(salt.len(), Self::SALT_LENGTH);
+-        let salt = hkdf::import_key(self.version, self.cipher, salt)?;
++        let salt = hkdf::import_key(self.version, salt)?;
+         let secret = hkdf::extract(self.version, self.cipher, Some(&salt), k)?;
+         Aead::new(self.version, self.cipher, &secret, "neqo self")
+     }
+diff -up firefox-91.2.0/third_party/rust/neqo-crypto/tests/aead.rs.fips-quic firefox-91.2.0/third_party/rust/neqo-crypto/tests/aead.rs
+--- firefox-91.2.0/third_party/rust/neqo-crypto/tests/aead.rs.fips-quic	2021-09-28 18:41:35.000000000 +0200
++++ firefox-91.2.0/third_party/rust/neqo-crypto/tests/aead.rs	2021-10-20 18:50:31.961682135 +0200
+@@ -26,7 +26,6 @@ fn make_aead(cipher: Cipher) -> Aead {
+ 
+     let secret = hkdf::import_key(
+         TLS_VERSION_1_3,
+-        cipher,
+         &[
+             0x47, 0xb2, 0xea, 0xea, 0x6c, 0x26, 0x6e, 0x32, 0xc0, 0x69, 0x7a, 0x9e, 0x2a, 0x89,
+             0x8b, 0xdf, 0x5c, 0x4f, 0xb3, 0xe5, 0xac, 0x34, 0xf0, 0xe5, 0x49, 0xbf, 0x2c, 0x58,
+diff -up firefox-91.2.0/third_party/rust/neqo-crypto/tests/hkdf.rs.fips-quic firefox-91.2.0/third_party/rust/neqo-crypto/tests/hkdf.rs
+--- firefox-91.2.0/third_party/rust/neqo-crypto/tests/hkdf.rs.fips-quic	2021-09-28 18:41:44.000000000 +0200
++++ firefox-91.2.0/third_party/rust/neqo-crypto/tests/hkdf.rs	2021-10-20 18:50:31.961682135 +0200
+@@ -38,8 +38,8 @@ fn cipher_hash_len(cipher: Cipher) -> us
+ fn import_keys(cipher: Cipher) -> (SymKey, SymKey) {
+     let l = cipher_hash_len(cipher);
+     (
+-        hkdf::import_key(TLS_VERSION_1_3, cipher, &SALT[0..l]).expect("import salt"),
+-        hkdf::import_key(TLS_VERSION_1_3, cipher, &IKM[0..l]).expect("import IKM"),
++        hkdf::import_key(TLS_VERSION_1_3, &SALT[0..l]).expect("import salt"),
++        hkdf::import_key(TLS_VERSION_1_3, &IKM[0..l]).expect("import IKM"),
+     )
+ }
+ 
+diff -up firefox-91.2.0/third_party/rust/neqo-crypto/tests/hp.rs.fips-quic firefox-91.2.0/third_party/rust/neqo-crypto/tests/hp.rs
+--- firefox-91.2.0/third_party/rust/neqo-crypto/tests/hp.rs.fips-quic	2021-09-28 18:41:44.000000000 +0200
++++ firefox-91.2.0/third_party/rust/neqo-crypto/tests/hp.rs	2021-10-20 18:50:31.961682135 +0200
+@@ -9,7 +9,7 @@ use neqo_crypto::hp::HpKey;
+ use test_fixture::fixture_init;
+ 
+ fn make_hp(cipher: Cipher) -> HpKey {
+-    let ikm = hkdf::import_key(TLS_VERSION_1_3, cipher, &[0; 16]).expect("import IKM");
++    let ikm = hkdf::import_key(TLS_VERSION_1_3, &[0; 16]).expect("import IKM");
+     let prk = hkdf::extract(TLS_VERSION_1_3, cipher, None, &ikm).expect("extract works");
+     HpKey::extract(TLS_VERSION_1_3, cipher, &prk, "hp").expect("extract label works")
+ }
+diff -up firefox-91.2.0/third_party/rust/neqo-transport/src/crypto.rs.fips-quic firefox-91.2.0/third_party/rust/neqo-transport/src/crypto.rs
+--- firefox-91.2.0/third_party/rust/neqo-transport/src/crypto.rs.fips-quic	2021-09-28 18:41:44.000000000 +0200
++++ firefox-91.2.0/third_party/rust/neqo-transport/src/crypto.rs	2021-10-20 18:50:31.968682203 +0200
+@@ -432,14 +432,8 @@ impl CryptoDxState {
+         let initial_secret = hkdf::extract(
+             TLS_VERSION_1_3,
+             cipher,
+-            Some(
+-                hkdf::import_key(TLS_VERSION_1_3, cipher, salt)
+-                    .as_ref()
+-                    .unwrap(),
+-            ),
+-            hkdf::import_key(TLS_VERSION_1_3, cipher, dcid)
+-                .as_ref()
+-                .unwrap(),
++            Some(hkdf::import_key(TLS_VERSION_1_3, salt).as_ref().unwrap()),
++            hkdf::import_key(TLS_VERSION_1_3, dcid).as_ref().unwrap(),
+         )
+         .unwrap();
+ 
+@@ -1094,8 +1088,7 @@ impl CryptoStates {
+         let app_read = |epoch| CryptoDxAppData {
+             dx: read(epoch),
+             cipher: TLS_AES_128_GCM_SHA256,
+-            next_secret: hkdf::import_key(TLS_VERSION_1_3, TLS_AES_128_GCM_SHA256, &[0xaa; 32])
+-                .unwrap(),
++            next_secret: hkdf::import_key(TLS_VERSION_1_3, &[0xaa; 32]).unwrap(),
+         };
+         Self {
+             initial: Some(CryptoState {
+@@ -1120,8 +1113,7 @@ impl CryptoStates {
+             0x00, 0xa1, 0x54, 0x43, 0xf1, 0x82, 0x03, 0xa0, 0x7d, 0x60, 0x60, 0xf6, 0x88, 0xf3,
+             0x0f, 0x21, 0x63, 0x2b,
+         ];
+-        let secret =
+-            hkdf::import_key(TLS_VERSION_1_3, TLS_CHACHA20_POLY1305_SHA256, SECRET).unwrap();
++        let secret = hkdf::import_key(TLS_VERSION_1_3, SECRET).unwrap();
+         let app_read = |epoch| CryptoDxAppData {
+             dx: CryptoDxState {
+                 direction: CryptoDxDirection::Read,
+diff -up firefox-91.2.0/third_party/rust/neqo-transport/src/packet/retry.rs.fips-quic firefox-91.2.0/third_party/rust/neqo-transport/src/packet/retry.rs
+--- firefox-91.2.0/third_party/rust/neqo-transport/src/packet/retry.rs.fips-quic	2021-09-28 18:41:34.000000000 +0200
++++ firefox-91.2.0/third_party/rust/neqo-transport/src/packet/retry.rs	2021-10-20 18:50:31.969682213 +0200
+@@ -28,7 +28,7 @@ fn make_aead(secret: &[u8]) -> Aead {
+     #[cfg(debug_assertions)]
+     ::neqo_crypto::assert_initialized();
+ 
+-    let secret = hkdf::import_key(TLS_VERSION_1_3, TLS_AES_128_GCM_SHA256, secret).unwrap();
++    let secret = hkdf::import_key(TLS_VERSION_1_3, secret).unwrap();
+     Aead::new(TLS_VERSION_1_3, TLS_AES_128_GCM_SHA256, &secret, "quic ").unwrap()
+ }
+ thread_local!(static RETRY_AEAD_29: RefCell<Aead> = RefCell::new(make_aead(RETRY_SECRET_29)));
+diff -up firefox-91.2.0/third_party/rust/neqo-transport/tests/common/mod.rs.fips-quic firefox-91.2.0/third_party/rust/neqo-transport/tests/common/mod.rs
+--- firefox-91.2.0/third_party/rust/neqo-transport/tests/common/mod.rs.fips-quic	2021-09-28 18:41:34.000000000 +0200
++++ firefox-91.2.0/third_party/rust/neqo-transport/tests/common/mod.rs	2021-10-20 18:50:31.969682213 +0200
+@@ -121,13 +121,11 @@ pub fn client_initial_aead_and_hp(dcid:
+         TLS_VERSION_1_3,
+         TLS_AES_128_GCM_SHA256,
+         Some(
+-            hkdf::import_key(TLS_VERSION_1_3, TLS_AES_128_GCM_SHA256, INITIAL_SALT)
++            hkdf::import_key(TLS_VERSION_1_3, INITIAL_SALT)
+                 .as_ref()
+                 .unwrap(),
+         ),
+-        hkdf::import_key(TLS_VERSION_1_3, TLS_AES_128_GCM_SHA256, dcid)
+-            .as_ref()
+-            .unwrap(),
++        hkdf::import_key(TLS_VERSION_1_3, dcid).as_ref().unwrap(),
+     )
+     .unwrap();
+ 
diff --git a/firefox.spec b/firefox.spec
index 42daf248..7e8191d0 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -129,7 +129,7 @@ end}
 Summary:        Mozilla Firefox Web browser
 Name:           firefox
 Version:        91.2.0
-Release:        4%{?dist}
+Release:        5%{?dist}
 URL:            https://www.mozilla.org/firefox/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
 %if 0%{?rhel} == 9
@@ -200,6 +200,8 @@ Patch513:        mozilla-bmo998749.patch
 Patch514:        mozilla-s390x-skia-gradient.patch
 Patch515:        mozilla-bmo1626236.patch
 Patch518:        D110204-fscreen.diff
+# https://github.com/mozilla/neqo/commit/2e1785a6b3b85316a2451cdb2dc3027c192a7533
+Patch519:        fips-quic.patch
 
 # Flatpak patches
 
@@ -442,6 +444,7 @@ echo "use_rustts            %{?use_rustts}"
 #%patch514 -p1 -b .mozilla-s390x-skia-gradient
 %patch515 -p1 -b .mozilla-bmo1626236
 %patch518 -p1 -b .D110204-fscreen.diff
+%patch519 -p1 -b .fips-quic
 
 
 %patch1001 -p1 -b .ppc64le-inline
