diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..f9e8eac
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,26 @@
+{
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+  "lockfileVersion": 2,
+  "requires": true,
+  "packages": {
+    "": {
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+      }
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+    "node_modules/web-ext-types": {
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+      "resolved": "https://registry.npmjs.org/web-ext-types/-/web-ext-types-3.2.1.tgz",
+      "integrity": "sha512-oQZYDU3W8X867h8Jmt3129kRVKklz70db40Y6OzoTTuzOJpF/dB2KULJUf0txVPyUUXuyzV8GmT3nVvRHoG+Ew==",
+      "dev": true
+    }
+  },
+  "dependencies": {
+    "web-ext-types": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/web-ext-types/-/web-ext-types-3.2.1.tgz",
+      "integrity": "sha512-oQZYDU3W8X867h8Jmt3129kRVKklz70db40Y6OzoTTuzOJpF/dB2KULJUf0txVPyUUXuyzV8GmT3nVvRHoG+Ew==",
+      "dev": true
+    }
+  }
+}
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..b9d9b6a
--- /dev/null
+++ b/package.json
@@ -0,0 +1,5 @@
+{
+  "devDependencies": {
+    "web-ext-types": "^3.2.1"
+  }
+}