set max stack size to 2MB,
see https://repo.palemoon.org/MoonchildProductions/UXP/commit/00f22ddbe62f9ab4cf314b1beb18b7f9a91edae2
diff --git a/platform/js/xpconnect/src/XPCJSContext.cpp b/platform/js/xpconnect/src/XPCJSContext.cpp
index 9d11356e27..9b06c94fbc 100644
--- a/platform/js/xpconnect/src/XPCJSContext.cpp
+++ b/platform/js/xpconnect/src/XPCJSContext.cpp
@@ -3231,7 +3231,7 @@ XPCJSContext::Initialize()
     // Most Linux distributions set default stack size to 8MB.  Use it as the
     // maximum value.
     // Solaris uses 8 or 10 MB, depending, so this is a safe max there too.
-    const size_t kStackQuotaMax = 8 * 1024 * 1024;
+    const size_t kStackQuotaMax = 2 * 1024 * 1024;
 #if defined(MOZ_ASAN) || defined(DEBUG)
     // Bug 803182: account for the 4x difference in the size of js::Interpret
     // between optimized and debug builds.  We use 2x since the JIT part