diff --git a/lib/components/farcaster-data-handler.react.js b/lib/components/farcaster-data-handler.react.js
--- a/lib/components/farcaster-data-handler.react.js
+++ b/lib/components/farcaster-data-handler.react.js
@@ -7,11 +7,13 @@
   updateRelationships as serverUpdateRelationships,
   updateRelationshipsActionTypes,
 } from '../actions/relationship-actions.js';
+import { setSyncedMetadataEntryActionType } from '../actions/synced-metadata-actions.js';
 import { NeynarClientContext } from '../components/neynar-client-provider.react.js';
 import { useLegacyAshoatKeyserverCall } from '../keyserver-conn/legacy-keyserver-call.js';
 import { isLoggedInToIdentityAndAuthoritativeKeyserver } from '../selectors/user-selectors.js';
 import { IdentityClientContext } from '../shared/identity-client-context.js';
 import { relationshipActions } from '../types/relationship-types.js';
+import { syncedMetadataNames } from '../types/synced-metadata-types.js';
 import { useCurrentUserFID } from '../utils/farcaster-utils.js';
 import { useDispatchActionPromise } from '../utils/redux-promise-utils.js';
 import { useSelector, useDispatch } from '../utils/redux-utils.js';
@@ -132,6 +134,45 @@
     });
   }, [loggedIn, isActive, findUserIdentities, userInfos, dispatch]);
 
+  const prevCanQueryHandleCurrentUserFIDRef = React.useRef<?boolean>();
+  const canQueryHandleCurrentUserFID = isActive && !fid && loggedIn;
+
+  const handleCurrentUserFID = React.useCallback(async () => {
+    if (
+      canQueryHandleCurrentUserFID ===
+      prevCanQueryHandleCurrentUserFIDRef.current
+    ) {
+      return;
+    }
+    prevCanQueryHandleCurrentUserFIDRef.current = canQueryHandleCurrentUserFID;
+
+    if (
+      !canQueryHandleCurrentUserFID ||
+      !findUserIdentities ||
+      !currentUserID
+    ) {
+      return;
+    }
+
+    const currentUserIdentityObj = await findUserIdentities([currentUserID]);
+    const identityFID = currentUserIdentityObj[currentUserID]?.farcasterID;
+
+    if (identityFID) {
+      dispatch({
+        type: setSyncedMetadataEntryActionType,
+        payload: {
+          name: syncedMetadataNames.CURRENT_USER_FID,
+          data: identityFID,
+        },
+      });
+    }
+  }, [
+    canQueryHandleCurrentUserFID,
+    findUserIdentities,
+    currentUserID,
+    dispatch,
+  ]);
+
   React.useEffect(() => {
     if (!usingCommServicesAccessToken) {
       return;
@@ -139,7 +180,8 @@
 
     void handleFarcasterMutuals();
     void handleUserStoreFIDs();
-  }, [handleFarcasterMutuals, handleUserStoreFIDs]);
+    void handleCurrentUserFID();
+  }, [handleCurrentUserFID, handleFarcasterMutuals, handleUserStoreFIDs]);
 
   return null;
 }
diff --git a/web/app.react.js b/web/app.react.js
--- a/web/app.react.js
+++ b/web/app.react.js
@@ -15,6 +15,7 @@
 } from 'lib/actions/entry-actions.js';
 import { ChatMentionContextProvider } from 'lib/components/chat-mention-provider.react.js';
 import { EditUserAvatarProvider } from 'lib/components/edit-user-avatar-provider.react.js';
+import { FarcasterDataHandler } from 'lib/components/farcaster-data-handler.react.js';
 import {
   ModalProvider,
   useModalContext,
@@ -250,6 +251,7 @@
                       <LogOutIfMissingCSATHandler />
                       <UserInfosHandler />
                       <TunnelbrokerDeviceTokenHandler />
+                      <FarcasterDataHandler />
                       {content}
                     </ChatMentionContextProvider>
                   </MessageSearchStateProvider>