diff --git a/extensions/example-extension/index.tsx b/extensions/example-extension/index.tsx
deleted file mode 100644
index 1fd4a4c666..0000000000
--- a/extensions/example-extension/index.tsx
+++ /dev/null
@@ -1,24 +0,0 @@
-import { DynamicPageType, LensRendererExtension, PageStore } from "@lens/ui-extensions";
-import { examplePage, ExtensionIcon } from "./page"
-
-export default class ExampleExtension extends LensRendererExtension {
-  onActivate() {
-    console.log('EXAMPLE EXTENSION RENDERER: ACTIVATED', this.getMeta());
-  }
-
-  registerPages(pageStore: PageStore) {
-    this.registerPage(pageStore, {
-      type: DynamicPageType.CLUSTER,
-      path: "/extension-example",
-      title: "Example Extension",
-      components: {
-        Page: examplePage(this),
-        MenuIcon: ExtensionIcon,
-      }
-    })
-  }
-
-  onDeactivate() {
-    console.log('EXAMPLE EXTENSION RENDERER: DEACTIVATED', this.getMeta());
-  }
-}
diff --git a/extensions/example-extension/main.ts b/extensions/example-extension/main.ts
index 28e5feddee..e60540ac37 100644
--- a/extensions/example-extension/main.ts
+++ b/extensions/example-extension/main.ts
@@ -5,10 +5,6 @@ export default class ExampleExtensionMain extends LensMainExtension {
     console.log('EXAMPLE EXTENSION MAIN: ACTIVATED', this.getMeta());
   }
 
-  onEvent(evt: any) {
-    //
-  }
-
   onDeactivate() {
     console.log('EXAMPLE EXTENSION MAIN: DEACTIVATED', this.getMeta());
   }
diff --git a/extensions/example-extension/page.tsx b/extensions/example-extension/page.tsx
index 823888387a..68e2844a82 100644
--- a/extensions/example-extension/page.tsx
+++ b/extensions/example-extension/page.tsx
@@ -28,5 +28,5 @@ export class ExtensionPage extends React.Component<{ extension: LensRendererExte
 }
 
 export function examplePage(ext: LensRendererExtension) {
-  return () => <ExtensionPage extension={ext}/>
+  return () => <ExtensionPage extension={ext} />
 }
diff --git a/extensions/example-extension/renderer.ts b/extensions/example-extension/renderer.ts
index 1fd4a4c666..478a0ecc17 100644
--- a/extensions/example-extension/renderer.ts
+++ b/extensions/example-extension/renderer.ts
@@ -7,7 +7,7 @@ export default class ExampleExtension extends LensRendererExtension {
   }
 
   registerPages(pageStore: PageStore) {
-    this.registerPage(pageStore, {
+    this.disposers.push(pageStore.register({
       type: DynamicPageType.CLUSTER,
       path: "/extension-example",
       title: "Example Extension",
@@ -15,7 +15,7 @@ export default class ExampleExtension extends LensRendererExtension {
         Page: examplePage(this),
         MenuIcon: ExtensionIcon,
       }
-    })
+    }))
   }
 
   onDeactivate() {
diff --git a/extensions/example-extension/tsconfig.json b/extensions/example-extension/tsconfig.json
index 5f73ed06f2..3ef4abfc2d 100644
--- a/extensions/example-extension/tsconfig.json
+++ b/extensions/example-extension/tsconfig.json
@@ -12,6 +12,7 @@
     "skipLibCheck": true,
     "esModuleInterop": true,
     "allowSyntheticDefaultImports": true,
+    "experimentalDecorators": true,
     "jsx": "react"
   },
   "include": [
diff --git a/package.json b/package.json
index f36fd31e83..14d478c7b6 100644
--- a/package.json
+++ b/package.json
@@ -12,15 +12,18 @@
   },
   "scripts": {
     "dev": "concurrently -k \"yarn dev-run -C\" yarn:dev:*",
+    "dev-build": "concurrently yarn:compile:*",
     "dev-run": "nodemon --watch static/build/main.js --exec \"electron --inspect .\"",
     "dev:main": "yarn compile:main --watch",
     "dev:renderer": "yarn compile:renderer --watch",
+    "dev:extension-rollup": "yarn compile:extension-rollup --watch",
     "dev:extension-api": "yarn compile:extension-api --watch",
     "compile": "env NODE_ENV=production concurrently yarn:compile:*",
     "compile:main": "webpack --config webpack.main.ts",
     "compile:renderer": "webpack --config webpack.renderer.ts",
     "compile:i18n": "lingui compile",
-    "compile:extension-api": "rollup --config src/extensions/rollup.config.js",
+    "compile:extension-rollup": "rollup --config src/extensions/rollup.config.js",
+    "compile:extension-api": "webpack --config webpack.extensions.ts",
     "build:linux": "yarn compile && electron-builder --linux --dir -c.productName=Lens",
     "build:mac": "yarn compile && electron-builder --mac --dir -c.productName=Lens",
     "build:win": "yarn compile && electron-builder --win --dir -c.productName=Lens",
diff --git a/src/extensions/extension-loader.ts b/src/extensions/extension-loader.ts
index 83eda276b7..e7ac28d43b 100644
--- a/src/extensions/extension-loader.ts
+++ b/src/extensions/extension-loader.ts
@@ -66,14 +66,13 @@ export class ExtensionLoader {
   }
 
   protected autoloadExtensions(getLensRuntimeEnv: () => LensExtensionRuntimeEnv, callback: (instance: LensExtension) => void) {
-    return reaction(() => this.extensions.toJS(), installedExtensions => {
-      installedExtensions.forEach((ext) => {
+    return reaction(() => this.extensions.toJS(), (installedExtensions) => {
+      for(const [id, ext] of installedExtensions) {
         let instance = this.instances.get(ext.manifestPath)
         if (!instance) {
           const extensionModule = this.requireExtension(ext)
           if (!extensionModule) {
-            logger.error("[EXTENSION-LOADER] failed to load extension " + ext.manifestPath)
-            return
+            continue
           }
           const LensExtensionClass = extensionModule.default;
           instance = new LensExtensionClass({ ...ext.manifest, manifestPath: ext.manifestPath, id: ext.manifestPath }, ext.manifest);
@@ -81,7 +80,7 @@ export class ExtensionLoader {
           callback(instance)
           this.instances.set(ext.id, instance)
         }
-      })
+      }
     }, {
       fireImmediately: true,
       delay: 0,
@@ -92,17 +91,17 @@ export class ExtensionLoader {
     let extEntrypoint = ""
     return withExtensionPackagesRoot(() => {
       try {
-        if (ipcRenderer) {
-          extEntrypoint = path.join(path.dirname(extension.manifestPath), extension.manifest.renderer)
-        } else {
-          extEntrypoint = path.join(path.dirname(extension.manifestPath), extension.manifest.main)
+        if (ipcRenderer && extension.manifest.renderer) {
+          extEntrypoint = path.resolve(path.join(path.dirname(extension.manifestPath), extension.manifest.renderer))
+        } else if (extension.manifest.main) {
+          extEntrypoint = path.resolve(path.join(path.dirname(extension.manifestPath), extension.manifest.main))
         }
         if (extEntrypoint !== "") {
           return __non_webpack_require__(extEntrypoint)
         }
       } catch (err) {
-        console.trace(err)
         console.error(`[EXTENSION-LOADER]: can't load extension main at ${extEntrypoint}: ${err}`, { extension });
+        console.trace(err)
       }
     })
   }
diff --git a/src/extensions/extension-manager.ts b/src/extensions/extension-manager.ts
index 2f856ef8cc..8490071b22 100644
--- a/src/extensions/extension-manager.ts
+++ b/src/extensions/extension-manager.ts
@@ -2,10 +2,23 @@ import type { ExtensionManifest } from "./lens-extension"
 import path from "path"
 import fs from "fs-extra"
 import logger from "../main/logger"
-import { withExtensionPackagesRoot, extensionPackagesRoot, InstalledExtension } from "./extension-loader"
-import npm from "npm"
+import { extensionPackagesRoot, InstalledExtension } from "./extension-loader"
+import * as child_process from 'child_process';
+
+type Dependencies = {
+  [name: string]: string;
+}
+
+type PackageJson = {
+  dependencies: Dependencies;
+}
 
 export class ExtensionManager {
+
+  protected packagesJson: PackageJson = {
+    dependencies: {}
+  }
+
   get extensionPackagesRoot() {
     return extensionPackagesRoot()
   }
@@ -14,11 +27,13 @@ export class ExtensionManager {
     return path.resolve(__static, "../extensions");
   }
 
+  get npmPath() {
+    return __non_webpack_require__.resolve('npm/bin/npm-cli')
+  }
+
   async load() {
     logger.info("[EXTENSION-MANAGER] loading extensions from " + this.extensionPackagesRoot)
-
     await fs.ensureDir(path.join(this.extensionPackagesRoot, "node_modules"))
-    await fs.writeFile(path.join(this.extensionPackagesRoot, "package.json"), `{"dependencies": []}`, {mode: 0o600})
 
     return await this.loadExtensions();
   }
@@ -27,9 +42,7 @@ export class ExtensionManager {
     let manifestJson: ExtensionManifest;
     try {
       manifestJson = __non_webpack_require__(manifestPath)
-      withExtensionPackagesRoot(() => {
-        this.installPackageFromPath(path.dirname(manifestPath))
-      })
+      this.packagesJson.dependencies[manifestJson.name] = path.dirname(manifestPath)
 
       logger.info("[EXTENSION-MANAGER] installed extension " + manifestJson.name)
       return {
@@ -44,31 +57,17 @@ export class ExtensionManager {
     }
   }
 
-  protected installPackageFromPath(path: string): Promise<void> {
-    const origLogger = console.log
+  protected installPackages(): Promise<void> {
     return new Promise((resolve, reject) => {
-      npm.load({
-        production: true,
-        global: false,
-        prefix: this.extensionPackagesRoot,
-        dev: false,
-        spin: false,
-        "ignore-scripts": true,
-        loglevel: "silent"
-      }, (err) => {
-        console.log = function() {
-          // just to ignore ts empty function error
-        }
-        npm.commands.install([
-          path
-        ], (err) => {
-          console.log = origLogger
-          if (err) {
-            reject(err)
-          } else {
-            resolve()
-          }
-        })
+      const child = child_process.fork(this.npmPath, ["install", "--silent"], {
+        cwd: extensionPackagesRoot(),
+        silent: true
+      })
+      child.on("close", () => {
+        resolve()
+      })
+      child.on("error", (err) => {
+        reject(err)
       })
     })
   }
@@ -80,15 +79,19 @@ export class ExtensionManager {
 
   async loadFromFolder(folderPath: string): Promise<InstalledExtension[]> {
     const paths = await fs.readdir(folderPath);
-    const manifestsLoading = paths.map(fileName => {
+    const extensions: InstalledExtension[] = []
+    for (const fileName of paths) {
       const absPath = path.resolve(folderPath, fileName);
       const manifestPath = path.resolve(absPath, "package.json");
-      return fs.access(manifestPath, fs.constants.F_OK)
-        .then(async () => await this.getExtensionByManifest(manifestPath))
-        .catch(() => null)
-    });
-    let extensions = await Promise.all(manifestsLoading);
-    extensions = extensions.filter(v => !!v); // filter out files and invalid folders (without manifest.json)
+      await fs.access(manifestPath, fs.constants.F_OK)
+      const ext = await this.getExtensionByManifest(manifestPath).catch(() => null)
+      if (ext) {
+        extensions.push(ext)
+      }
+    }
+    await fs.writeFile(path.join(this.extensionPackagesRoot, "package.json"), JSON.stringify(this.packagesJson), {mode: 0o600})
+    await this.installPackages()
+
     logger.debug(`[EXTENSION-MANAGER]: ${extensions.length} extensions loaded`, { folderPath, extensions });
     return extensions;
   }
diff --git a/src/extensions/extension-renderer-api.ts b/src/extensions/extension-renderer-api.ts
index 8de4873778..9003e75901 100644
--- a/src/extensions/extension-renderer-api.ts
+++ b/src/extensions/extension-renderer-api.ts
@@ -1,9 +1,10 @@
 // Lens-extensions api developer's kit
-export type { LensExtensionRuntimeEnv, PageStore } from "./lens-renderer-runtime";
+export type { LensExtensionRuntimeEnv } from "./lens-renderer-runtime"
+export type { PageStore } from "./page-store"
 
 // APIs
 export * from "./lens-renderer-extension"
-export { DynamicPageType } from "./page-store";
+export { DynamicPageType } from "./page-store"
 
 // TODO: add more common re-usable UI components + refactor interfaces (Props -> ComponentProps)
 export { default as React } from "react"
diff --git a/src/extensions/lens-renderer-extension.ts b/src/extensions/lens-renderer-extension.ts
index 0c48491bd1..405f598e56 100644
--- a/src/extensions/lens-renderer-extension.ts
+++ b/src/extensions/lens-renderer-extension.ts
@@ -1,13 +1,12 @@
-import type { PageStore } from "./lens-renderer-runtime"
+import type { PageStore } from "./extension-renderer-api"
 import type { PageRegistration } from "./page-store"
 import { LensExtension } from "./lens-extension"
 
-export class LensRendererExtension extends LensExtension {
+export abstract class LensRendererExtension extends LensExtension {
   registerPages(pageStore: PageStore) {
-    // mock
+    return
   }
 
-
   // Runtime helpers
   protected registerPage(pageStore: PageStore, params: PageRegistration) {
     const dispose = pageStore.register(params);
diff --git a/src/extensions/lens-renderer-runtime.ts b/src/extensions/lens-renderer-runtime.ts
index fef56fca07..9849a46f4f 100644
--- a/src/extensions/lens-renderer-runtime.ts
+++ b/src/extensions/lens-renderer-runtime.ts
@@ -2,11 +2,6 @@
 
 import logger from "../main/logger";
 import { navigate } from "../renderer/navigation";
-import { PageRegistration } from "./page-store";
-
-export interface PageStore {
-  register(params: PageRegistration): () => void
-}
 
 export interface LensExtensionRuntimeEnv {
   logger: typeof logger;
diff --git a/src/main/index.ts b/src/main/index.ts
index 80a40ba3b5..43177d0673 100644
--- a/src/main/index.ts
+++ b/src/main/index.ts
@@ -81,6 +81,7 @@ async function main() {
 
   extensionLoader.loadOnMain(getLensRuntime)
   extensionLoader.extensions.replace(await extensionManager.load())
+  extensionLoader.broadcastExtensions()
 }
 
 app.on("ready", main);
diff --git a/src/main/window-manager.ts b/src/main/window-manager.ts
index 348d5bbd3f..2854c11dd3 100644
--- a/src/main/window-manager.ts
+++ b/src/main/window-manager.ts
@@ -4,6 +4,7 @@ import { BrowserWindow, dialog, ipcMain, shell, webContents } from "electron"
 import windowStateKeeper from "electron-window-state"
 import { observable } from "mobx";
 import { initMenu } from "./menu";
+import { extensionLoader } from "../extensions/extension-loader";
 
 export class WindowManager {
   protected mainView: BrowserWindow;
@@ -40,6 +41,9 @@ export class WindowManager {
       event.preventDefault();
       shell.openExternal(url);
     });
+    this.mainView.webContents.on("dom-ready", () => {
+      extensionLoader.broadcastExtensions()
+    })
 
     // track visible cluster from ui
     ipcMain.on("cluster-view:current-id", (event, clusterId: ClusterId) => {
@@ -72,8 +76,8 @@ export class WindowManager {
     try {
       await this.showSplash();
       await this.mainView.loadURL(`http://localhost:${this.proxyPort}`)
-      this.mainView.show();
-      this.splashWindow.close();
+      this.mainView.show()
+      this.splashWindow.close()
     } catch (err) {
       dialog.showErrorBox("ERROR!", err.toString())
     }
diff --git a/webpack.extensions.ts b/webpack.extensions.ts
new file mode 100755
index 0000000000..a6e7a6f918
--- /dev/null
+++ b/webpack.extensions.ts
@@ -0,0 +1,50 @@
+import { extensionsDir, extensionsLibName, extensionsRendererLibName } from "./src/common/vars";
+import path from "path";
+import webpack from "webpack";
+import nodeExternals from "webpack-node-externals";
+import { webpackLensRenderer } from "./webpack.renderer";
+import ForkTsCheckerPlugin from "fork-ts-checker-webpack-plugin";
+import ProgressBarPlugin from "progress-bar-webpack-plugin";
+import MiniCssExtractPlugin from "mini-css-extract-plugin";
+
+export default [
+  webpackExtensionsApi,
+  webpackExtensionsRendererApi
+]
+
+// todo: use common chunks/externals for "react", "react-dom", etc.
+export function webpackExtensionsApi(): webpack.Configuration {
+  const config = webpackLensRenderer({ showVars: false })
+  config.name = "extensions-api"
+  config.entry = {
+    [extensionsLibName]: path.resolve(extensionsDir, "extension-api.ts")
+  }
+  config.externals = [
+    nodeExternals()
+  ]
+  config.plugins = [
+    new ProgressBarPlugin(),
+    new ForkTsCheckerPlugin(),
+  ]
+  config.output.libraryTarget = "commonjs2"
+  config.devtool = "nosources-source-map"
+  return config
+}
+
+export function webpackExtensionsRendererApi(): webpack.Configuration {
+  const config = webpackLensRenderer({ showVars: false })
+  config.name = "extensions-renderer-api"
+  config.entry = {
+    [extensionsRendererLibName]: path.resolve(extensionsDir, "extension-renderer-api.ts")
+  }
+  config.plugins = [
+    new ProgressBarPlugin(),
+    new ForkTsCheckerPlugin(),
+    new MiniCssExtractPlugin({
+      filename: "[name].css",
+    })
+  ]
+  config.output.libraryTarget = "commonjs2"
+  config.devtool = "nosources-source-map"
+  return config
+}
diff --git a/webpack.renderer.ts b/webpack.renderer.ts
index 3a949ddd20..5d94b56365 100755
--- a/webpack.renderer.ts
+++ b/webpack.renderer.ts
@@ -8,34 +8,9 @@ import ForkTsCheckerPlugin from "fork-ts-checker-webpack-plugin"
 import ProgressBarPlugin from "progress-bar-webpack-plugin";
 
 export default [
-  webpackLensRenderer,
-  webpackExtensionsApi,
-  webpackExtensionsRendererApi
+  webpackLensRenderer
 ]
 
-// todo: use common chunks/externals for "react", "react-dom", etc.
-export function webpackExtensionsApi(): webpack.Configuration {
-  const config = webpackLensRenderer({ showVars: false });
-  config.name = "extensions-api"
-  config.entry = {
-    [extensionsLibName]: path.resolve(extensionsDir, "extension-api.ts")
-  };
-  config.output.libraryTarget = "commonjs2"
-  config.devtool = "nosources-source-map";
-  return config;
-}
-
-export function webpackExtensionsRendererApi(): webpack.Configuration {
-  const config = webpackLensRenderer({ showVars: false });
-  config.name = "extensions-renderer-api"
-  config.entry = {
-    [extensionsRendererLibName]: path.resolve(extensionsDir, "extension-renderer-api.ts")
-  };
-  config.output.libraryTarget = "commonjs2"
-  config.devtool = "nosources-source-map";
-  return config;
-}
-
 export function webpackLensRenderer({ showVars = true } = {}): webpack.Configuration {
   if (showVars) {
     console.info('WEBPACK:renderer', require("./src/common/vars"));