diff --git a/devtools/server/actors/replay/control.js b/devtools/server/actors/replay/control.js
index d3e0740ad952..06309067a107 100644
--- a/devtools/server/actors/replay/control.js
+++ b/devtools/server/actors/replay/control.js
@@ -1033,6 +1033,13 @@ let gPausePoint = null;
 // In ARRIVING mode, the requests must be sent once the child arrives.
 const gDebuggerRequests = [];
 
+function addDebuggerRequest(request) {
+  gDebuggerRequests.push({
+    request,
+    stack: Error().stack,
+  });
+}
+
 function setPauseState(mode, point, child) {
   assert(mode);
   const idString = child ? ` #${child.id}` : "";
@@ -1077,7 +1084,7 @@ function sendActiveChildToPausePoint() {
           gActiveChild.sendManifest({
             contents: {
               kind: "batchDebuggerRequest",
-              requests: gDebuggerRequests,
+              requests: gDebuggerRequests.map(r => r.request),
             },
             onFinished(finishData) {
               assert(!finishData || !finishData.restoredCheckpoint);
@@ -1823,7 +1830,7 @@ const gControl = {
       gActiveChild.divergedFromRecording = true;
     }
 
-    gDebuggerRequests.push(request);
+    addDebuggerRequest(request);
     return data.response;
   },
 
@@ -1860,6 +1867,10 @@ const gControl = {
   unscannedRegions,
   cachedPoints,
 
+  debuggerRequests() {
+    return gDebuggerRequests;
+  },
+
   getPauseData() {
     // If the child has not arrived at the pause point yet, see if there is
     // cached pause data for this point already which we can immediately return.
@@ -1868,7 +1879,7 @@ const gControl = {
       if (data) {
         // After the child pauses, it will need to generate the pause data so
         // that any referenced objects will be instantiated.
-        gDebuggerRequests.push({ type: "pauseData" });
+        addDebuggerRequest({ type: "pauseData" });
         return data;
       }
     }
diff --git a/devtools/server/actors/replay/debugger.js b/devtools/server/actors/replay/debugger.js
index 9dbda280de73..d0321dc72b49 100644
--- a/devtools/server/actors/replay/debugger.js
+++ b/devtools/server/actors/replay/debugger.js
@@ -120,6 +120,10 @@ ReplayDebugger.prototype = {
     return this._control.cachedPoints();
   },
 
+  replayDebuggerRequests() {
+    return this._control.debuggerRequests();
+  },
+
   addDebuggee() {},
   removeAllDebuggees() {},
 
diff --git a/devtools/server/actors/thread.js b/devtools/server/actors/thread.js
index 92373850b1a9..cf7af51128a9 100644
--- a/devtools/server/actors/thread.js
+++ b/devtools/server/actors/thread.js
@@ -2127,6 +2127,10 @@ const ThreadActor = ActorClassWithSpec(threadSpec, {
     const loc = this.sources.getFrameLocation(frame);
     dump(`${prefix} (${loc.line}, ${loc.column})\n`);
   },
+
+  debuggerRequests() {
+    return this.dbg.replayDebuggerRequests();
+  },
 });
 
 Object.assign(ThreadActor.prototype.requestTypes, {
diff --git a/devtools/shared/specs/thread.js b/devtools/shared/specs/thread.js
index 15fdbce74ffe..36ea041498c9 100644
--- a/devtools/shared/specs/thread.js
+++ b/devtools/shared/specs/thread.js
@@ -154,6 +154,13 @@ const threadSpec = generateActorSpec({
         ignoreCaughtExceptions: Arg(1, "string"),
       },
     },
+
+    // For testing.
+    debuggerRequests: {
+      response: {
+        value: RetVal("array:json"),
+      },
+    },
   },
 });