diff --git a/plugin/firefox/assets/images/icons/icon16.png b/plugin/firefox/assets/images/icons/icon16.png
new file mode 100644
index 00000000..f3809618
Binary files /dev/null and b/plugin/firefox/assets/images/icons/icon16.png differ
diff --git a/plugin/firefox/assets/images/icons/icon32.png b/plugin/firefox/assets/images/icons/icon32.png
new file mode 100644
index 00000000..fb8a0625
Binary files /dev/null and b/plugin/firefox/assets/images/icons/icon32.png differ
diff --git a/plugin/firefox/assets/images/icons/icon48.png b/plugin/firefox/assets/images/icons/icon48.png
new file mode 100644
index 00000000..7d9818d5
Binary files /dev/null and b/plugin/firefox/assets/images/icons/icon48.png differ
diff --git a/plugin/firefox/manifest.json b/plugin/firefox/manifest.json
index 79b91c63..23f667ba 100644
--- a/plugin/firefox/manifest.json
+++ b/plugin/firefox/manifest.json
@@ -1,7 +1,7 @@
 {
     "manifest_version": 2,
     "name": "GreenScore",
-    "version": "1.6.2",
+    "version": "1.6.3",
     "description": "GreenScore est un plugin et une plateforme web qui mesure l'empreinte carbone d'un site par utilisateur et organisation. Il offre des tableaux de bord personnels et d'organisation, des analyses ponctuelles, et un classement des sites les plus énergivores pour sensibiliser et encourager des pratiques numériques durables.",
     "browser_specific_settings": {
         "gecko": {
@@ -31,6 +31,11 @@
     },
     "browser_action": {
         "default_popup": "src/popup.html",
-        "default_title": "Analyser la page"
+        "default_title": "Analyser la page",
+        "default_icon": {
+            "16": "assets/images/icons/icon16.png",
+            "32": "assets/images/icons/icon32.png",
+            "48": "assets/images/icons/icon48.png"
+        }
     }
 }