diff -up firefox-84.0.1/build/moz.configure/nss.configure.nss-version firefox-84.0.1/build/moz.configure/nss.configure
--- firefox-84.0.1/build/moz.configure/nss.configure.nss-version	2020-12-21 20:07:33.000000000 +0100
+++ firefox-84.0.1/build/moz.configure/nss.configure	2020-12-22 10:23:02.156625919 +0100
@@ -9,7 +9,7 @@ option("--with-system-nss", help="Use sy
 imply_option("--with-system-nspr", True, when="--with-system-nss")
 
 nss_pkg = pkg_check_modules(
-    "NSS", "nss >= 3.59.1", when="--with-system-nss", config=False
+    "NSS", "nss >= 3.59", when="--with-system-nss", config=False
 )
 
 set_config("MOZ_SYSTEM_NSS", True, when="--with-system-nss")