diff --git a/js/src/builtin/TestingFunctions.cpp b/js/src/builtin/TestingFunctions.cpp
index ff50b0249fc6..f65497fe06ee 100644
--- a/js/src/builtin/TestingFunctions.cpp
+++ b/js/src/builtin/TestingFunctions.cpp
@@ -486,10 +486,19 @@ static bool MinorGC(JSContext* cx, unsigned argc, Value* vp) {
   _("dynamicHeapGrowth", JSGC_DYNAMIC_HEAP_GROWTH, true)                     \
   _("dynamicMarkSlice", JSGC_DYNAMIC_MARK_SLICE, true)                       \
   _("allocationThreshold", JSGC_ALLOCATION_THRESHOLD, true)                  \
+  _("allocationThresholdFactor", JSGC_ALLOCATION_THRESHOLD_FACTOR, true)     \
+  _("allocationThresholdFactorAvoidInterrupt",                               \
+    JSGC_ALLOCATION_THRESHOLD_FACTOR_AVOID_INTERRUPT, true)                  \
   _("minEmptyChunkCount", JSGC_MIN_EMPTY_CHUNK_COUNT, true)                  \
   _("maxEmptyChunkCount", JSGC_MAX_EMPTY_CHUNK_COUNT, true)                  \
   _("compactingEnabled", JSGC_COMPACTING_ENABLED, true)                      \
-  _("minLastDitchGCPeriod", JSGC_MIN_LAST_DITCH_GC_PERIOD, true)
+  _("minLastDitchGCPeriod", JSGC_MIN_LAST_DITCH_GC_PERIOD, true)             \
+  _("nurseryFreeThresholdForIdleCollection",                                 \
+    JSGC_NURSERY_FREE_THRESHOLD_FOR_IDLE_COLLECTION, true)                   \
+  _("nurseryFreeThresholdForIdleCollectionPercent",                          \
+    JSGC_NURSERY_FREE_THRESHOLD_FOR_IDLE_COLLECTION_PERCENT, true)           \
+  _("pretenureThreshold", JSGC_PRETENURE_THRESHOLD, true)                    \
+  _("pretenureGroupThreshold", JSGC_PRETENURE_GROUP_THRESHOLD, true)
 
 static const struct ParamInfo {
   const char* name;