diff --git a/companion/package-lock.json b/companion/package-lock.json
index 57c592fc..f48a63c6 100644
--- a/companion/package-lock.json
+++ b/companion/package-lock.json
@@ -16,7 +16,7 @@
       },
       "devDependencies": {
         "@types/chrome": "^0.1.0",
-        "@types/firefox-webext-browser": "^120.0.4",
+        "@types/firefox-webext-browser": "^143.0.0",
         "@types/fs-extra": "^11.0.4",
         "@types/webextension-polyfill": "^0.12.3",
         "nodemon": "^3.1.14",
@@ -474,9 +474,9 @@
       "license": "MIT"
     },
     "node_modules/@types/firefox-webext-browser": {
-      "version": "120.0.4",
-      "resolved": "https://registry.npmjs.org/@types/firefox-webext-browser/-/firefox-webext-browser-120.0.4.tgz",
-      "integrity": "sha512-lBrpf08xhiZBigrtdQfUaqX1UauwZ+skbFiL8u2Tdra/rklkKadYmIzTwkNZSWtuZ7OKpFqbE2HHfDoFqvZf6w==",
+      "version": "143.0.0",
+      "resolved": "https://registry.npmjs.org/@types/firefox-webext-browser/-/firefox-webext-browser-143.0.0.tgz",
+      "integrity": "sha512-865dYKMOP0CllFyHmgXV4IQgVL51OSQQCwSoihQ17EwugePKFSAZRc0EI+y7Ly4q7j5KyURlA7LgRpFieO4JOw==",
       "dev": true,
       "license": "MIT"
     },
diff --git a/companion/package.json b/companion/package.json
index ffefae51..16353374 100644
--- a/companion/package.json
+++ b/companion/package.json
@@ -19,7 +19,7 @@
   },
   "devDependencies": {
     "@types/chrome": "^0.1.0",
-    "@types/firefox-webext-browser": "^120.0.4",
+    "@types/firefox-webext-browser": "^143.0.0",
     "@types/fs-extra": "^11.0.4",
     "@types/webextension-polyfill": "^0.12.3",
     "nodemon": "^3.1.14",