diff --git a/packages/core/src/extensions/extension-discovery/extension-discovery.ts b/packages/core/src/extensions/extension-discovery/extension-discovery.ts
index bd9baff2c8..5b4f0d6486 100644
--- a/packages/core/src/extensions/extension-discovery/extension-discovery.ts
+++ b/packages/core/src/extensions/extension-discovery/extension-discovery.ts
@@ -17,7 +17,7 @@ import { requestInitialExtensionDiscovery } from "../../renderer/ipc";
 import type { ReadJson } from "../../common/fs/read-json-file.injectable";
 import type { Logger } from "../../common/logger";
 import type { PathExists } from "../../common/fs/path-exists.injectable";
-import type { Watch } from "../../common/fs/watch/watch.injectable";
+import type { Watch, Watcher } from "../../common/fs/watch/watch.injectable";
 import type { Stats } from "fs";
 import type { LStat } from "../../common/fs/lstat.injectable";
 import type { ReadDirectory } from "../../common/fs/read-directory.injectable";
@@ -168,6 +168,8 @@ export class ExtensionDiscovery {
     });
   }
 
+  private _watch: Watcher<false>|undefined;
+
   /**
    * Watches for added/removed local extensions.
    * Dependencies are installed automatically after an extension folder is copied.
@@ -178,7 +180,7 @@ export class ExtensionDiscovery {
     // Wait until .load() has been called and has been resolved
     await this.whenLoaded;
 
-    this.dependencies.watch(this.localFolderPath, {
+    this._watch = this.dependencies.watch(this.localFolderPath, {
       // For adding and removing symlinks to work, the depth has to be 1.
       depth: 1,
       ignoreInitial: true,
@@ -198,6 +200,12 @@ export class ExtensionDiscovery {
       .on("unlink", this.handleWatchUnlinkEvent);
   }
 
+  async stopWatchingExtensions() {
+    this.dependencies.logger.info(`${logModule} stopping the watch for extensions`);
+
+    await this._watch?.close();
+  }
+
   handleWatchFileAdd = async (manifestPath: string): Promise<void> => {
     // e.g. "foo/package.json"
     const relativePath = this.dependencies.getRelativePath(this.localFolderPath, manifestPath);
diff --git a/packages/core/src/extensions/extension-discovery/stop-watching-extensions-on-quit.injectable.ts b/packages/core/src/extensions/extension-discovery/stop-watching-extensions-on-quit.injectable.ts
new file mode 100644
index 0000000000..2644612d54
--- /dev/null
+++ b/packages/core/src/extensions/extension-discovery/stop-watching-extensions-on-quit.injectable.ts
@@ -0,0 +1,27 @@
+/**
+ * Copyright (c) OpenLens Authors. All rights reserved.
+ * Licensed under MIT License. See LICENSE in root directory for more information.
+ */
+import { getInjectable } from "@ogre-tools/injectable";
+import { beforeQuitOfBackEndInjectionToken } from "../../main/start-main-application/runnable-tokens/before-quit-of-back-end-injection-token";
+import extensionDiscoveryInjectable from "./extension-discovery.injectable";
+
+const stopWatchingExtensionsOnQuitInjectable = getInjectable({
+  id: "stop-watching-extensions-on-quit",
+
+  instantiate: (di) => {
+    const extensionDiscovery = di.inject(extensionDiscoveryInjectable);
+
+    return {
+      id: "stop-watching-extensions-on-quit",
+
+      run: async () => {
+        await extensionDiscovery.stopWatchingExtensions();
+      },
+    };
+  },
+
+  injectionToken: beforeQuitOfBackEndInjectionToken,
+});
+
+export default stopWatchingExtensionsOnQuitInjectable;
diff --git a/packages/core/src/main/catalog-sources/kubeconfig-sync/manager.ts b/packages/core/src/main/catalog-sources/kubeconfig-sync/manager.ts
index cf05577ae7..238857db4c 100644
--- a/packages/core/src/main/catalog-sources/kubeconfig-sync/manager.ts
+++ b/packages/core/src/main/catalog-sources/kubeconfig-sync/manager.ts
@@ -98,11 +98,19 @@ export class KubeconfigSyncManager {
 
   @action
   protected stopOldSync(filePath: string): void {
-    if (!this.sources.delete(filePath)) {
-      // already stopped
+    const source = this.sources.get(filePath);
+
+    // already stopped
+    if (!source) {
       return this.dependencies.logger.debug(`no syncing file/folder to stop`, { filePath });
     }
 
+    const [, disposer] = source;
+
+    disposer();
+
+    this.sources.delete(filePath);
+
     this.dependencies.logger.info(`stopping sync of file/folder`, { filePath });
     this.dependencies.logger.debug(`${this.sources.size} files/folders watched`, { files: Array.from(this.sources.keys()) });
   }