diff --git a/cspell.json b/cspell.json
index b484a24da7..366073da1e 100644
--- a/cspell.json
+++ b/cspell.json
@@ -130,7 +130,8 @@
     "processwithstarteventform",
     "processstring",
     "typeahed",
-    "minmax"
+    "minmax",
+    "jsons"
   ],
   "dictionaries": [
     "html",
diff --git a/lib/extensions/src/lib/config/action.extensions.ts b/lib/extensions/src/lib/config/action.extensions.ts
index e28d35a590..4f11e81eaa 100644
--- a/lib/extensions/src/lib/config/action.extensions.ts
+++ b/lib/extensions/src/lib/config/action.extensions.ts
@@ -48,5 +48,5 @@ export interface ContentActionRef extends ExtensionElement {
 export interface ActionRef {
     id: string;
     type: string;
-    payload?: string;
+    payload?: any;
 }
diff --git a/lib/extensions/src/lib/config/extension.config.ts b/lib/extensions/src/lib/config/extension.config.ts
index 0b3a2d2879..844aa0fa98 100644
--- a/lib/extensions/src/lib/config/extension.config.ts
+++ b/lib/extensions/src/lib/config/extension.config.ts
@@ -25,7 +25,7 @@ export interface ExtensionRef {
     $version: string;
     $vendor: string;
     $license: string;
-    $runtime: string;
+    $runtime?: string;
     $description?: string;
 
     $dependencies?: Array<string>;
diff --git a/lib/extensions/src/lib/services/extension.service.spec.ts b/lib/extensions/src/lib/services/extension.service.spec.ts
index 029c4df1a0..f54ee94e85 100644
--- a/lib/extensions/src/lib/services/extension.service.spec.ts
+++ b/lib/extensions/src/lib/services/extension.service.spec.ts
@@ -43,7 +43,7 @@ describe('ExtensionService', () => {
         loader = new ExtensionLoaderService(null);
         componentRegister = new ComponentRegisterService();
         ruleService = new RuleService(loader);
-        service = new ExtensionService(loader, componentRegister, ruleService);
+        service = new ExtensionService(loader, componentRegister, ruleService, []);
     });
 
     it('should load and setup a config', async () => {
@@ -56,6 +56,7 @@ describe('ExtensionService', () => {
         await service.load();
 
         expect(loader.load).toHaveBeenCalled();
+        expect(loader.load).toHaveBeenCalledWith('assets/app.extensions.json', 'assets/plugins', []);
         expect(service.setup).toHaveBeenCalledWith(blankConfig);
     });
 
diff --git a/lib/extensions/src/lib/services/extension.service.ts b/lib/extensions/src/lib/services/extension.service.ts
index f25d52d479..e58ebd6fde 100644
--- a/lib/extensions/src/lib/services/extension.service.ts
+++ b/lib/extensions/src/lib/services/extension.service.ts
@@ -15,9 +15,9 @@
  * limitations under the License.
  */
 
-import { Injectable, Type } from '@angular/core';
+import { Injectable, Type, InjectionToken, Inject } from '@angular/core';
 import { RuleEvaluator, RuleRef, RuleContext } from '../config/rule.extensions';
-import { ExtensionConfig } from '../config/extension.config';
+import { ExtensionConfig, ExtensionRef } from '../config/extension.config';
 import { ExtensionLoaderService } from './extension-loader.service';
 import { RouteRef } from '../config/routing.extensions';
 import { ActionRef } from '../config/action.extensions';
@@ -26,6 +26,19 @@ import { ComponentRegisterService } from './component-register.service';
 import { RuleService } from './rule.service';
 import { ExtensionElement } from '../config/extension-element';
 
+const EXTENSION_JSONS = new InjectionToken<ExtensionRef[][]>('extension-jsons', {
+    providedIn: 'root',
+    factory: () => []
+});
+
+export function provideExtensionConfig(jsons: ExtensionRef[]) {
+    return {
+        provide: EXTENSION_JSONS,
+        useValue: jsons,
+        multi: true
+    };
+}
+
 @Injectable({
     providedIn: 'root'
 })
@@ -44,7 +57,8 @@ export class ExtensionService {
     constructor(
         protected loader: ExtensionLoaderService,
         protected componentRegister: ComponentRegisterService,
-        protected ruleService: RuleService
+        protected ruleService: RuleService,
+        @Inject(EXTENSION_JSONS) protected extensionJsons: ExtensionRef[]
     ) {
     }
 
@@ -55,7 +69,8 @@ export class ExtensionService {
     async load(): Promise<ExtensionConfig> {
         const config = await this.loader.load(
             this.configPath,
-            this.pluginsPath
+            this.pluginsPath,
+            this.extensionJsons.flat()
         );
         this.setup(config);
         return config;
diff --git a/lib/tsconfig.json b/lib/tsconfig.json
index c095887b48..0ab0d60db9 100644
--- a/lib/tsconfig.json
+++ b/lib/tsconfig.json
@@ -29,7 +29,7 @@
       "@alfresco/adf-core": ["./core/"],
       "@alfresco/adf-insights": ["./analytics"]
     },
-    "lib": ["es2018", "dom"],
+    "lib": ["es2018", "esnext.array", "dom"],
     "suppressImplicitAnyIndexErrors": true
   },
   "exclude": [
diff --git a/tsconfig.json b/tsconfig.json
index 50c3f60bc8..1021d24212 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -23,6 +23,7 @@
     ],
     "lib": [
       "es2018",
+      "esnext.array",
       "dom"
     ],
     "paths": {