diff --git a/package.json b/package.json
index afbb497..fce8037 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
 		"webpack-dev-server": "^5.2.2"
 	},
 	"dependencies": {
-		"@types/firefox-webext-browser": "^120.0.5",
+		"@types/firefox-webext-browser": "^143.0.0",
 		"prettier": "^3.6.2"
 	}
 }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index e86b624..74c2640 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -9,8 +9,8 @@ importers:
   .:
     dependencies:
       '@types/firefox-webext-browser':
-        specifier: ^120.0.5
-        version: 120.0.5
+        specifier: ^143.0.0
+        version: 143.0.0
       prettier:
         specifier: ^3.6.2
         version: 3.6.2
@@ -128,8 +128,8 @@ packages:
   '@types/express@4.17.23':
     resolution: {integrity: sha512-Crp6WY9aTYP3qPi2wGDo9iUe/rceX01UMhnF1jmwDcKCFM6cx7YhGP/Mpr3y9AASpfHixIG0E6azCcL5OcDHsQ==}
 
-  '@types/firefox-webext-browser@120.0.5':
-    resolution: {integrity: sha512-imn8ecga0HQWcOSvxy9i0lD+7vpHgkj1NVLvXS1lNHqHt03Z4QwazeEdoWe+C9JXpmVyKiRanb+z9D/w001tRg==}
+  '@types/firefox-webext-browser@143.0.0':
+    resolution: {integrity: sha512-865dYKMOP0CllFyHmgXV4IQgVL51OSQQCwSoihQ17EwugePKFSAZRc0EI+y7Ly4q7j5KyURlA7LgRpFieO4JOw==}
 
   '@types/http-errors@2.0.5':
     resolution: {integrity: sha512-r8Tayk8HJnX0FztbZN7oVqGccWgw98T/0neJphO91KkmOzug1KkofZURD4UaD5uH8AqcFLfdPErnBod0u71/qg==}
@@ -1554,7 +1554,7 @@ snapshots:
       '@types/qs': 6.14.0
       '@types/serve-static': 1.15.8
 
-  '@types/firefox-webext-browser@120.0.5': {}
+  '@types/firefox-webext-browser@143.0.0': {}
 
   '@types/http-errors@2.0.5': {}