diff --git a/extension-firefox/icons/icon128.png b/extension-firefox/icons/icon128.png
new file mode 100644
index 0000000..89d1388
Binary files /dev/null and b/extension-firefox/icons/icon128.png differ
diff --git a/extension-firefox/icons/icon16.png b/extension-firefox/icons/icon16.png
new file mode 100644
index 0000000..f6ea1c0
Binary files /dev/null and b/extension-firefox/icons/icon16.png differ
diff --git a/extension-firefox/icons/icon48.png b/extension-firefox/icons/icon48.png
new file mode 100644
index 0000000..101ba7e
Binary files /dev/null and b/extension-firefox/icons/icon48.png differ
diff --git a/extension-firefox/manifest.json b/extension-firefox/manifest.json
index 588c812..d6ef2df 100644
--- a/extension-firefox/manifest.json
+++ b/extension-firefox/manifest.json
@@ -31,6 +31,17 @@
 
   "action": {
     "default_popup": "popup/popup.html",
-    "default_title": "Verstak Bridge"
+    "default_title": "Verstak Bridge",
+    "default_icon": {
+      "16": "icons/icon16.png",
+      "48": "icons/icon48.png",
+      "128": "icons/icon128.png"
+    }
+  },
+
+  "icons": {
+    "16": "icons/icon16.png",
+    "48": "icons/icon48.png",
+    "128": "icons/icon128.png"
   }
 }
diff --git a/extension/icons/icon128.png b/extension/icons/icon128.png
new file mode 100644
index 0000000..89d1388
Binary files /dev/null and b/extension/icons/icon128.png differ
diff --git a/extension/icons/icon16.png b/extension/icons/icon16.png
new file mode 100644
index 0000000..f6ea1c0
Binary files /dev/null and b/extension/icons/icon16.png differ
diff --git a/extension/icons/icon48.png b/extension/icons/icon48.png
new file mode 100644
index 0000000..101ba7e
Binary files /dev/null and b/extension/icons/icon48.png differ
diff --git a/extension/manifest.json b/extension/manifest.json
index 90f86aa..4b478e0 100644
--- a/extension/manifest.json
+++ b/extension/manifest.json
@@ -24,6 +24,17 @@
 
   "action": {
     "default_popup": "popup/popup.html",
-    "default_title": "Verstak Bridge"
+    "default_title": "Verstak Bridge",
+    "default_icon": {
+      "16": "icons/icon16.png",
+      "48": "icons/icon48.png",
+      "128": "icons/icon128.png"
+    }
+  },
+
+  "icons": {
+    "16": "icons/icon16.png",
+    "48": "icons/icon48.png",
+    "128": "icons/icon128.png"
   }
 }
diff --git a/scripts/build.sh b/scripts/build.sh
index 6660b1a..2e71f18 100755
--- a/scripts/build.sh
+++ b/scripts/build.sh
@@ -49,13 +49,13 @@ build_chrome_extension() {
     return 1
   fi
 
-  # Create a clean zip: manifest.json, background.js, popup/*
-  # Exclude any hidden files, icons (not needed for dev install), and OS junk
+  # Create a clean zip: manifest.json, background.js, popup/*, icons/*
   cd "$ext_dir"
   zip -r "../$out_file" \
     manifest.json \
     background.js \
     popup/ \
+    icons/ \
     -x "*/.DS_Store" "*/Thumbs.db" "*/__MACOSX/*" "*/.git/*"
   cd ..
 
@@ -76,12 +76,13 @@ build_firefox_extension() {
   fi
 
   # Firefox xpi is a zip with .xpi extension
-  # Must include manifest.json at root
+  # Must include manifest.json at root + icons
   cd "$ext_dir"
   zip -r "../$out_file" \
     manifest.json \
     background.js \
     popup/ \
+    icons/ \
     -x "*/.DS_Store" "*/Thumbs.db" "*/__MACOSX/*" "*/.git/*"
   cd ..