diff --git a/extensions/github-authentication/package.json b/extensions/github-authentication/package.json
index 0a4c850d7a3..c4189e6b7eb 100644
--- a/extensions/github-authentication/package.json
+++ b/extensions/github-authentication/package.json
@@ -12,7 +12,8 @@
     "Other"
   ],
   "activationEvents": [
-    "*"
+    "*",
+    "onAuthenticationRequest:github"
   ],
   "contributes": {
     "commands": [
diff --git a/extensions/microsoft-authentication/package.json b/extensions/microsoft-authentication/package.json
index 4300598429d..0794d50127b 100644
--- a/extensions/microsoft-authentication/package.json
+++ b/extensions/microsoft-authentication/package.json
@@ -12,7 +12,8 @@
 	],
 	"enableProposedApi": true,
 	"activationEvents": [
-		"*"
+		"*",
+		"onAuthenticationRequest:microsoft"
 	],
 	"aiKey": "AIF-d9b70cd4-b9f9-4d70-929b-a071c400b217",
 	"main": "./out/extension.js",
diff --git a/src/vs/workbench/api/browser/mainThreadAuthentication.ts b/src/vs/workbench/api/browser/mainThreadAuthentication.ts
index 878675c6f39..e7be698d903 100644
--- a/src/vs/workbench/api/browser/mainThreadAuthentication.ts
+++ b/src/vs/workbench/api/browser/mainThreadAuthentication.ts
@@ -17,6 +17,7 @@ import { INotificationService } from 'vs/platform/notification/common/notificati
 import { IStorageKeysSyncRegistryService } from 'vs/platform/userDataSync/common/storageKeys';
 import { IRemoteAgentService } from 'vs/workbench/services/remote/common/remoteAgentService';
 import { fromNow } from 'vs/base/common/date';
+import { IExtensionService } from 'vs/workbench/services/extensions/common/extensions';
 
 const VSO_ALLOWED_EXTENSIONS = ['github.vscode-pull-request-github', 'github.vscode-pull-request-github-insiders', 'vscode.git', 'ms-vsonline.vsonline', 'vscode.github-browser'];
 
@@ -213,7 +214,8 @@ export class MainThreadAuthentication extends Disposable implements MainThreadAu
 		@INotificationService private readonly notificationService: INotificationService,
 		@IStorageKeysSyncRegistryService private readonly storageKeysSyncRegistryService: IStorageKeysSyncRegistryService,
 		@IRemoteAgentService private readonly remoteAgentService: IRemoteAgentService,
-		@IQuickInputService private readonly quickInputService: IQuickInputService
+		@IQuickInputService private readonly quickInputService: IQuickInputService,
+		@IExtensionService private readonly extensionService: IExtensionService
 	) {
 		super();
 		this._proxy = extHostContext.getProxy(ExtHostContext.ExtHostAuthentication);
@@ -378,6 +380,8 @@ export class MainThreadAuthentication extends Disposable implements MainThreadAu
 	}
 
 	async $getSessionsPrompt(providerId: string, accountName: string, providerName: string, extensionId: string, extensionName: string): Promise<boolean> {
+		await this.extensionService.activateByEvent(`onAuthenticationRequest:${providerId}`);
+
 		const allowList = readAllowedExtensions(this.storageService, providerId, accountName);
 		const extensionData = allowList.find(extension => extension.id === extensionId);
 		if (extensionData) {