diff --git a/src/contentScripts/index.ts b/src/contentScripts/index.ts
index 6c0f8639..82c40dd3 100644
--- a/src/contentScripts/index.ts
+++ b/src/contentScripts/index.ts
@@ -37,7 +37,9 @@ if (isFirefox) {
     if (!isFirstScriptExecute)
       return
 
-    injectApp()
+    setTimeout(() => {
+      injectApp()
+    }, 1000)
     isFirstScriptExecute = false
 
     const currentUrl = document.URL
diff --git a/src/manifest.ts b/src/manifest.ts
index e4b04cb0..8e55d023 100644
--- a/src/manifest.ts
+++ b/src/manifest.ts
@@ -52,12 +52,16 @@ export async function getManifest() {
         // matches: ['./assets/*'],
       },
     ],
-    content_security_policy: {
-      extension_pages: isDev
-        // this is required on dev for Vite script to load
-        ? `script-src 'self' http://localhost:${port}; object-src 'self' http://localhost:${port}`
-        : 'script-src \'self\'; object-src \'self\'',
-    },
+    content_security_policy: isFirefox
+      ? {
+          extension_pages: 'script-src \'self\'; object-src \'self\'',
+        }
+      : {
+          extension_pages: isDev
+          // this is required on dev for Vite script to load
+            ? `script-src 'self' http://localhost:${port}; object-src 'self' http://localhost:${port}`
+            : 'script-src \'self\'; object-src \'self\'',
+        },
     // @ts-expect-error Manifest.WebExtensionManifest type doesn't not support declarative_net_request check
     declarative_net_request: {
       rule_resources: [{