--- a/dom/security/nsCSPUtils.cpp
+++ b/dom/security/nsCSPUtils.cpp
@@ -914,20 +914,16 @@ nsCSPHashSrc::allows(enum CSPKeyword aKe
 
   rv = hasher->Update((uint8_t *)utf8_hash.get(), utf8_hash.Length());
   NS_ENSURE_SUCCESS(rv, false);
 
   nsAutoCString hash;
   rv = hasher->Finish(true, hash);
   NS_ENSURE_SUCCESS(rv, false);
 
-  // The NSS Base64 encoder automatically adds linebreaks "\r\n" every 64
-  // characters. We need to remove these so we can properly validate longer
-  // (SHA-512) base64-encoded hashes
-  hash.StripChars("\r\n");
   return NS_ConvertUTF16toUTF8(mHash).Equals(hash);
 }
 
 bool
 nsCSPHashSrc::visit(nsCSPSrcVisitor* aVisitor) const
 {
   return aVisitor->visitHashSrc(*this);
 }