diff --git a/devtools/server/actors/root.js b/devtools/server/actors/root.js
index 60970a290619..7bf54c1483f2 100644
--- a/devtools/server/actors/root.js
+++ b/devtools/server/actors/root.js
@@ -9,7 +9,6 @@
 const { Cu } = require("chrome");
 const Services = require("Services");
 const { ActorPool, appendExtraActors, createExtraActors } = require("devtools/server/actors/common");
-const { Pool } = require("devtools/shared/protocol");
 const { DebuggerServer } = require("devtools/server/main");
 
 loader.lazyRequireGetter(this, "ChromeWindowTargetActor",
@@ -431,18 +430,14 @@ RootActor.prototype = {
     workerList.onListChanged = this._onWorkerListChanged;
 
     return workerList.getList().then(actors => {
-      const pool = new Pool(this.conn);
+      const pool = new ActorPool(this.conn);
       for (const actor of actors) {
-        pool.manage(actor);
-      }
-
-      // Do not destroy the pool before transfering ownership to the newly created
-      // pool, so that we do not accidently destroy actors that are still in use.
-      if (this._workerTargetActorPool) {
-        this._workerTargetActorPool.destroy();
+        pool.addActor(actor);
       }
 
+      this.conn.removeActorPool(this._workerTargetActorPool);
       this._workerTargetActorPool = pool;
+      this.conn.addActorPool(this._workerTargetActorPool);
 
       return {
         "from": this.actorID,
diff --git a/devtools/server/actors/targets/browsing-context.js b/devtools/server/actors/targets/browsing-context.js
index 79f1c36c6b3a..dbaf2ded0401 100644
--- a/devtools/server/actors/targets/browsing-context.js
+++ b/devtools/server/actors/targets/browsing-context.js
@@ -41,7 +41,7 @@ const { LocalizationHelper } = require("devtools/shared/l10n");
 const STRINGS_URI = "devtools/shared/locales/browsing-context.properties";
 const L10N = new LocalizationHelper(STRINGS_URI);
 
-const { ActorClassWithSpec, Actor, Pool } = require("devtools/shared/protocol");
+const { ActorClassWithSpec, Actor } = require("devtools/shared/protocol");
 const { browsingContextTargetSpec } = require("devtools/shared/specs/targets/browsing-context");
 
 loader.lazyRequireGetter(this, "ThreadActor", "devtools/server/actors/thread", true);
@@ -651,18 +651,15 @@ const browsingContextTargetPrototype = {
     }
 
     return this._workerTargetActorList.getList().then((actors) => {
-      const pool = new Pool(this.conn);
+      const pool = new ActorPool(this.conn);
       for (const actor of actors) {
-        pool.manage(actor);
-      }
-
-      // Do not destroy the pool before transfering ownership to the newly created
-      // pool, so that we do not accidently destroy actors that are still in use.
-      if (this._workerTargetActorPool) {
-        this._workerTargetActorPool.destroy();
+        pool.addActor(actor);
       }
 
+      this.conn.removeActorPool(this._workerTargetActorPool);
       this._workerTargetActorPool = pool;
+      this.conn.addActorPool(this._workerTargetActorPool);
+
       this._workerTargetActorList.onListChanged = this._onWorkerTargetActorListChanged;
 
       return {
@@ -902,7 +899,7 @@ const browsingContextTargetPrototype = {
     }
 
     if (this._workerTargetActorPool !== null) {
-      this._workerTargetActorPool.destroy();
+      this.conn.removeActorPool(this._workerTargetActorPool);
       this._workerTargetActorPool = null;
     }
 
diff --git a/devtools/server/actors/targets/content-process.js b/devtools/server/actors/targets/content-process.js
index a3661e37f569..1a14ea471815 100644
--- a/devtools/server/actors/targets/content-process.js
+++ b/devtools/server/actors/targets/content-process.js
@@ -18,7 +18,6 @@ const { ChromeDebuggerActor } = require("devtools/server/actors/thread");
 const { WebConsoleActor } = require("devtools/server/actors/webconsole");
 const makeDebugger = require("devtools/server/actors/utils/make-debugger");
 const { ActorPool } = require("devtools/server/actors/common");
-const { Pool } = require("devtools/shared/protocol");
 const { assert } = require("devtools/shared/DevToolsUtils");
 const { TabSources } = require("devtools/server/actors/utils/TabSources");
 
@@ -121,18 +120,15 @@ ContentProcessTargetActor.prototype = {
       this._workerList = new WorkerTargetActorList(this.conn, {});
     }
     return this._workerList.getList().then(actors => {
-      const pool = new Pool(this.conn);
+      const pool = new ActorPool(this.conn);
       for (const actor of actors) {
-        pool.manage(actor);
-      }
-
-      // Do not destroy the pool before transfering ownership to the newly created
-      // pool, so that we do not accidently destroy actors that are still in use.
-      if (this._workerTargetActorPool) {
-        this._workerTargetActorPool.destroy();
+        pool.addActor(actor);
       }
 
+      this.conn.removeActorPool(this._workerTargetActorPool);
       this._workerTargetActorPool = pool;
+      this.conn.addActorPool(this._workerTargetActorPool);
+
       this._workerList.onListChanged = this._onWorkerListChanged;
 
       return {
diff --git a/devtools/shared/protocol.js b/devtools/shared/protocol.js
index a61ca78bb38a..8d0e87304e0a 100644
--- a/devtools/shared/protocol.js
+++ b/devtools/shared/protocol.js
@@ -857,12 +857,6 @@ Pool.prototype = extend(EventEmitter.prototype, {
       actor.actorID = this.conn.allocID(actor.actorPrefix || actor.typeName);
     }
 
-    // If the actor is already in a pool, remove it without destroying it.
-    const parent = actor.parent();
-    if (parent) {
-      parent.unmanage(actor);
-    }
-
     this._poolMap.set(actor.actorID, actor);
     return actor;
   },