diff --git a/packages/expo-web-browser/CHANGELOG.md b/packages/expo-web-browser/CHANGELOG.md
index 7544efc39da36..ab076e05ee176 100644
--- a/packages/expo-web-browser/CHANGELOG.md
+++ b/packages/expo-web-browser/CHANGELOG.md
@@ -9,3 +9,5 @@
 - Add `readerMode` and `dismissButtonStyle` (iOS) and `enableDefaultShare` (Android) flags for `WebBrowser` ([#7221](https://github.com/expo/expo/pull/7221) by [@LinusU](https://github.com/LinusU)) & [@mczernek](https://github.com/mczernek))
 
 ### 🐛 Bug fixes
+
+- Fix `WebBrowser` sending `dismiss` before opening. ([#6743](https://github.com/expo/expo/pull/6743) by [@LucaColonnello](https://github.com/LucaColonnello))
diff --git a/packages/expo-web-browser/build/WebBrowser.js b/packages/expo-web-browser/build/WebBrowser.js
index 3174d1ceb1290..8959bca90188a 100644
--- a/packages/expo-web-browser/build/WebBrowser.js
+++ b/packages/expo-web-browser/build/WebBrowser.js
@@ -120,7 +120,16 @@ let _redirectHandler = null;
 // Store the `resolve` function from a Promise to fire when the AppState
 // returns to active
 let _onWebBrowserCloseAndroid = null;
+// If the initial AppState.currentState is null, we assume that the first call to
+// AppState#change event is not actually triggered by a real change,
+// is triggered instead by the bridge capturing the current state
+// (https://facebook.github.io/react-native/docs/appstate#basic-usage)
+let _isAppStateAvailable = AppState.currentState !== null;
 function _onAppStateChangeAndroid(state) {
+    if (!_isAppStateAvailable) {
+        _isAppStateAvailable = true;
+        return;
+    }
     if (state === 'active' && _onWebBrowserCloseAndroid) {
         _onWebBrowserCloseAndroid();
     }
diff --git a/packages/expo-web-browser/src/WebBrowser.ts b/packages/expo-web-browser/src/WebBrowser.ts
index fa21422a7df5b..7de6ecc51866f 100644
--- a/packages/expo-web-browser/src/WebBrowser.ts
+++ b/packages/expo-web-browser/src/WebBrowser.ts
@@ -165,7 +165,17 @@ let _redirectHandler: ((event: RedirectEvent) => void) | null = null;
 // returns to active
 let _onWebBrowserCloseAndroid: null | (() => void) = null;
 
+// If the initial AppState.currentState is null, we assume that the first call to
+// AppState#change event is not actually triggered by a real change,
+// is triggered instead by the bridge capturing the current state
+// (https://facebook.github.io/react-native/docs/appstate#basic-usage)
+let _isAppStateAvailable: boolean = AppState.currentState !== null;
 function _onAppStateChangeAndroid(state: AppStateStatus) {
+  if (!_isAppStateAvailable) {
+    _isAppStateAvailable = true;
+    return;
+  }
+
   if (state === 'active' && _onWebBrowserCloseAndroid) {
     _onWebBrowserCloseAndroid();
   }