diff -up thunderbird-115.1.0/comm/third_party/rnp/moz.build.rnp-openssl thunderbird-115.1.0/comm/third_party/rnp/moz.build
--- thunderbird-115.1.0/comm/third_party/rnp/moz.build.rnp-openssl	2023-08-07 16:38:39.272780256 +0200
+++ thunderbird-115.1.0/comm/third_party/rnp/moz.build	2023-08-07 16:38:42.822780087 +0200
@@ -93,7 +93,7 @@ elif CONFIG["MZLA_LIBRNP_BACKEND"] == "o
         # Supported, but not with RHEL's OpenSSL, disabled for now;
         "ENABLE_BRAINPOOL": False,
     })
-    rnp_defines["PACKAGE_STRING"] = rnp_defines["PACKAGE_STRING"][:-1] + '-openssl"'
+    #rnp_defines["PACKAGE_STRING"] = rnp_defines["PACKAGE_STRING"][:-1] + '-openssl"'
     if CONFIG["MZLA_LIBRNP_OPENSSL_VERSION"][0] == "3":
         rnp_defines["CRYPTO_BACKEND_OPENSSL3"] = True