--- a/mozglue/build/Authenticode.cpp
+++ b/mozglue/build/Authenticode.cpp
@@ -143,16 +143,17 @@ SignedBinary::VerifySignature(const wcha
   fileInfo.pcwszFilePath = aFilePath;
 
   WINTRUST_DATA trustData = {sizeof(trustData)};
   trustData.dwUIChoice = WTD_UI_NONE;
   trustData.fdwRevocationChecks = WTD_REVOKE_NONE;
   trustData.dwUnionChoice = WTD_CHOICE_FILE;
   trustData.pFile = &fileInfo;
   trustData.dwStateAction = WTD_STATEACTION_VERIFY;
+  trustData.dwProvFlags = WTD_CACHE_ONLY_URL_RETRIEVAL;
 
   const HWND hwnd = (HWND) INVALID_HANDLE_VALUE;
   GUID policyGUID = WINTRUST_ACTION_GENERIC_VERIFY_V2;
   LONG result = WinVerifyTrust(hwnd, &policyGUID, &trustData);
 
   trustData.dwStateAction = WTD_STATEACTION_CLOSE;
   WinVerifyTrust(hwnd, &policyGUID, &trustData);