diff --git a/apps/extension/src/hooks/popup-ready.ts b/apps/extension/src/hooks/popup-ready.ts
index ebcca4c4..3123da63 100644
--- a/apps/extension/src/hooks/popup-ready.ts
+++ b/apps/extension/src/hooks/popup-ready.ts
@@ -1,24 +1,19 @@
 import { useEffect, useRef } from 'react';
-import { PopupResponse, PopupType, Ready } from '../message/popup';
+import { useSearchParams } from 'react-router-dom';
 
 type IsReady = boolean | undefined;
 
 // signals that react is ready (mounted) to service worker
 export const usePopupReady = (isReady: IsReady = undefined) => {
   const sentMessagesRef = useRef(new Set());
-  const searchParams = new URLSearchParams(window.location.search);
+  const [searchParams] = useSearchParams();
   const popupId = searchParams.get('popupId');
 
   useEffect(() => {
     if (popupId && (isReady === undefined || isReady) && !sentMessagesRef.current.has(popupId)) {
       sentMessagesRef.current.add(popupId);
 
-      void chrome.runtime.sendMessage({
-        type: PopupType.Ready,
-        data: {
-          popupId,
-        },
-      } as PopupResponse<Ready>);
+      void chrome.runtime.sendMessage(popupId);
     }
   }, [popupId, isReady]);
 };
diff --git a/apps/extension/src/message/popup.ts b/apps/extension/src/message/popup.ts
index 092cc61f..29290e34 100644
--- a/apps/extension/src/message/popup.ts
+++ b/apps/extension/src/message/popup.ts
@@ -11,10 +11,9 @@ import { OriginRecord } from '../storage/types';
 export enum PopupType {
   TxApproval = 'TxApproval',
   OriginApproval = 'OriginApproval',
-  Ready = 'PopupReady',
 }
 
-export type PopupMessage = TxApproval | OriginApproval | Ready;
+export type PopupMessage = TxApproval | OriginApproval;
 export type PopupRequest<T extends PopupMessage = PopupMessage> = InternalRequest<T>;
 export type PopupResponse<T extends PopupMessage = PopupMessage> = InternalResponse<T>;
 
@@ -35,14 +34,6 @@ export type TxApproval = InternalMessage<
   }
 >;
 
-export type Ready = InternalMessage<
-  PopupType.Ready,
-  null,
-  {
-    popupId: string;
-  }
->;
-
 export const isPopupRequest = (req: unknown): req is PopupRequest =>
   req != null &&
   typeof req === 'object' &&
@@ -51,19 +42,8 @@ export const isPopupRequest = (req: unknown): req is PopupRequest =>
   typeof req.type === 'string' &&
   req.type in PopupType;
 
-export const isPopupResponse = (res: unknown): res is PopupResponse =>
-  res != null &&
-  typeof res === 'object' &&
-  ('data' in res || 'error' in res) &&
-  'type' in res &&
-  typeof res.type === 'string' &&
-  res.type in PopupType;
-
 export const isOriginApprovalRequest = (req: unknown): req is InternalRequest<OriginApproval> =>
-  isPopupRequest(req) && req.type === PopupType.OriginApproval;
+  isPopupRequest(req) && req.type === PopupType.OriginApproval && 'origin' in req.request;
 
 export const isTxApprovalRequest = (req: unknown): req is InternalRequest<TxApproval> =>
-  isPopupRequest(req) && req.type === PopupType.TxApproval;
-
-export const isPopupReadyResponse = (res: unknown): res is InternalResponse<Ready> =>
-  isPopupResponse(res) && res.type === PopupType.Ready;
+  isPopupRequest(req) && req.type === PopupType.TxApproval && 'authorizeRequest' in req.request;
diff --git a/apps/extension/src/popup.ts b/apps/extension/src/popup.ts
index 8f540d90..c42dd93b 100644
--- a/apps/extension/src/popup.ts
+++ b/apps/extension/src/popup.ts
@@ -1,11 +1,5 @@
 import { sessionExtStorage } from './storage/session';
-import {
-  isPopupReadyResponse,
-  PopupMessage,
-  PopupRequest,
-  PopupResponse,
-  PopupType,
-} from './message/popup';
+import { PopupMessage, PopupRequest, PopupType } from './message/popup';
 import { PopupPath } from './routes/popup/paths';
 import type { InternalRequest, InternalResponse } from '@penumbra-zone/types/internal-msg/shared';
 import { Code, ConnectError } from '@connectrpc/connect';
@@ -82,16 +76,16 @@ const throwIfNeedsLogin = async () => {
 };
 
 const spawnPopup = async (pop: PopupType, popupId: string) => {
-  const popUrl = new URL(chrome.runtime.getURL(`popup.html?popupId=${popupId}`));
+  const popUrl = new URL(chrome.runtime.getURL('popup.html'));
 
   await throwIfNeedsLogin();
 
   switch (pop) {
     case PopupType.OriginApproval:
-      popUrl.hash = PopupPath.ORIGIN_APPROVAL;
+      popUrl.hash = `${PopupPath.ORIGIN_APPROVAL}?popupId=${popupId}`;
       return spawnDetachedPopup(popUrl.href);
     case PopupType.TxApproval:
-      popUrl.hash = PopupPath.TRANSACTION_APPROVAL;
+      popUrl.hash = `${PopupPath.TRANSACTION_APPROVAL}?popupId=${popupId}`;
       return spawnDetachedPopup(popUrl.href);
     default:
       throw Error('Unknown popup type');
@@ -100,23 +94,17 @@ const spawnPopup = async (pop: PopupType, popupId: string) => {
 
 const POPUP_READY_TIMEOUT = 60 * 1000;
 
-const popupReady = async (popupId: string): Promise<void> => {
-  return new Promise((resolve, reject): void => {
-    setTimeout(() => {
-      reject(new Error('Popup ready timed out'));
-    }, POPUP_READY_TIMEOUT);
+const popupReady = (popupId: string): Promise<void> =>
+  new Promise((resolve, reject) => {
+    AbortSignal.timeout(POPUP_READY_TIMEOUT).onabort = reject;
 
-    const handlePopupReady = (res: PopupResponse): void => {
-      if (!isPopupReadyResponse(res)) {
-        return;
-      }
-
-      if ('data' in res && res.data.popupId === popupId) {
-        chrome.runtime.onMessage.removeListener(handlePopupReady);
+    const idListen = (msg: unknown, _: chrome.runtime.MessageSender, respond: () => void) => {
+      if (msg === popupId) {
         resolve();
+        chrome.runtime.onMessage.removeListener(idListen);
+        respond();
       }
     };
 
-    chrome.runtime.onMessage.addListener(handlePopupReady);
+    chrome.runtime.onMessage.addListener(idListen);
   });
-};