diff --git a/addon/package-lock.json b/addon/package-lock.json
index 9ce65d521..581e56933 100644
--- a/addon/package-lock.json
+++ b/addon/package-lock.json
@@ -12,7 +12,7 @@
         "lodash": "^4.17.21"
       },
       "devDependencies": {
-        "eslint-plugin-mozilla": "^3.7.5",
+        "eslint-plugin-mozilla": "^4.0.0",
         "eslint-plugin-no-unsanitized": "^4.1.2",
         "web-ext": "^8.3.0",
         "webpack": "^5.95.0",
@@ -2411,19 +2411,6 @@
         "url": "https://opencollective.com/eslint"
       }
     },
-    "node_modules/eslint-config-prettier": {
-      "version": "9.1.0",
-      "resolved": "https://registry.npmjs.org/eslint-config-prettier/-/eslint-config-prettier-9.1.0.tgz",
-      "integrity": "sha512-NSWl5BFQWEPi1j4TjVNItzYV7dZXZ+wP6I6ZhrBGpChQhZRUaElihE9uRRkcbRnNb76UMKDF3r+WTmNcGPKsqw==",
-      "dev": true,
-      "peer": true,
-      "bin": {
-        "eslint-config-prettier": "bin/cli.js"
-      },
-      "peerDependencies": {
-        "eslint": ">=7.0.0"
-      }
-    },
     "node_modules/eslint-plugin-es": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/eslint-plugin-es/-/eslint-plugin-es-3.0.1.tgz",
@@ -2444,37 +2431,10 @@
         "eslint": ">=4.19.1"
       }
     },
-    "node_modules/eslint-plugin-html": {
-      "version": "8.1.2",
-      "resolved": "https://registry.npmjs.org/eslint-plugin-html/-/eslint-plugin-html-8.1.2.tgz",
-      "integrity": "sha512-pbRchDV2SmqbCi/Ev/q3aAikzG9BcFe0IjjqjtMn8eTLq71ZUggyJB6CDmuwGAXmYZHrXI12XTfCqvgcnPRqGw==",
-      "dev": true,
-      "peer": true,
-      "dependencies": {
-        "htmlparser2": "^9.1.0"
-      },
-      "engines": {
-        "node": ">=16.0.0"
-      }
-    },
-    "node_modules/eslint-plugin-json": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/eslint-plugin-json/-/eslint-plugin-json-3.1.0.tgz",
-      "integrity": "sha512-MrlG2ynFEHe7wDGwbUuFPsaT2b1uhuEFhJ+W1f1u+1C2EkXmTYJp4B1aAdQQ8M+CC3t//N/oRKiIVw14L2HR1g==",
-      "dev": true,
-      "peer": true,
-      "dependencies": {
-        "lodash": "^4.17.21",
-        "vscode-json-languageservice": "^4.1.6"
-      },
-      "engines": {
-        "node": ">=12.0"
-      }
-    },
     "node_modules/eslint-plugin-mozilla": {
-      "version": "3.7.5",
-      "resolved": "https://registry.npmjs.org/eslint-plugin-mozilla/-/eslint-plugin-mozilla-3.7.5.tgz",
-      "integrity": "sha512-ydf31HfL4SqnL2gSEA4yEBJM3TCG47u/I2xChGVoxKOBDlGZVhLKexo56rFGSibGUwXZIXdZqtbhuAAYm7j4Wg==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-mozilla/-/eslint-plugin-mozilla-4.0.0.tgz",
+      "integrity": "sha512-iFrCuOmmyQ8FjKDkj9y6C2ecUVHBcDrsVqRxKYptLkTqiagrHBLuhJZK+WcXimTkjjE5+A2GvlJmQu2BEblrYw==",
       "dev": true,
       "dependencies": {
         "eslint-scope": "^7.2.2",
@@ -2482,18 +2442,15 @@
         "espree": "^9.6.1",
         "estraverse": "^5.3.0",
         "htmlparser2": "^9.1.0",
-        "toml-eslint-parser": "0.9.3"
+        "toml-eslint-parser": "0.10.0"
       },
       "engines": {
-        "node": ">=14.0.0"
+        "node": ">=18.0.0"
       },
       "peerDependencies": {
-        "@microsoft/eslint-plugin-sdl": "^0.2.2",
-        "eslint": "^7.23.0 || ^8.0.0",
-        "eslint-config-prettier": "^8.0.0 || ^9.0.0",
-        "eslint-plugin-html": "^7.0.0 || ^8.0.0",
-        "eslint-plugin-json": "^3.1.0",
-        "eslint-plugin-no-unsanitized": "^4.0.0"
+        "@microsoft/eslint-plugin-sdl": "^0.2.2 || ^1.0.0",
+        "eslint": "^7.23.0 || ^8.0.0 || ^9.0.0",
+        "eslint-plugin-no-unsanitized": "^4.1.0"
       }
     },
     "node_modules/eslint-plugin-no-unsanitized": {
@@ -4044,13 +4001,6 @@
       "resolved": "https://registry.npmjs.org/json-stable-stringify-without-jsonify/-/json-stable-stringify-without-jsonify-1.0.1.tgz",
       "integrity": "sha512-Bdboy+l7tA3OGW6FjyFHWkP5LuByj1Tk33Ljyq0axyzdk9//JSi2u3fP1QSmd1KNwq6VOKYGlAu87CisVir6Pw=="
     },
-    "node_modules/jsonc-parser": {
-      "version": "3.3.1",
-      "resolved": "https://registry.npmjs.org/jsonc-parser/-/jsonc-parser-3.3.1.tgz",
-      "integrity": "sha512-HUgH65KyejrUFPvHFPbqOY0rsFip3Bo5wb4ngvdi1EpCYWUQDC5V+Y7mZws+DLkr4M//zQJoanu1SP+87Dv1oQ==",
-      "dev": true,
-      "peer": true
-    },
     "node_modules/jsonfile": {
       "version": "6.1.0",
       "resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-6.1.0.tgz",
@@ -6353,9 +6303,9 @@
       }
     },
     "node_modules/toml-eslint-parser": {
-      "version": "0.9.3",
-      "resolved": "https://registry.npmjs.org/toml-eslint-parser/-/toml-eslint-parser-0.9.3.tgz",
-      "integrity": "sha512-moYoCvkNUAPCxSW9jmHmRElhm4tVJpHL8ItC/+uYD0EpPSFXbck7yREz9tNdJVTSpHVod8+HoipcpbQ0oE6gsw==",
+      "version": "0.10.0",
+      "resolved": "https://registry.npmjs.org/toml-eslint-parser/-/toml-eslint-parser-0.10.0.tgz",
+      "integrity": "sha512-khrZo4buq4qVmsGzS5yQjKe/WsFvV8fGfOjDQN0q4iy9FjRfPWRgTFrU8u1R2iu/SfWLhY9WnCi4Jhdrcbtg+g==",
       "dev": true,
       "dependencies": {
         "eslint-visitor-keys": "^3.0.0"
@@ -6623,48 +6573,6 @@
         "uuid": "dist/bin/uuid"
       }
     },
-    "node_modules/vscode-json-languageservice": {
-      "version": "4.2.1",
-      "resolved": "https://registry.npmjs.org/vscode-json-languageservice/-/vscode-json-languageservice-4.2.1.tgz",
-      "integrity": "sha512-xGmv9QIWs2H8obGbWg+sIPI/3/pFgj/5OWBhNzs00BkYQ9UaB2F6JJaGB/2/YOZJ3BvLXQTC4Q7muqU25QgAhA==",
-      "dev": true,
-      "peer": true,
-      "dependencies": {
-        "jsonc-parser": "^3.0.0",
-        "vscode-languageserver-textdocument": "^1.0.3",
-        "vscode-languageserver-types": "^3.16.0",
-        "vscode-nls": "^5.0.0",
-        "vscode-uri": "^3.0.3"
-      }
-    },
-    "node_modules/vscode-languageserver-textdocument": {
-      "version": "1.0.12",
-      "resolved": "https://registry.npmjs.org/vscode-languageserver-textdocument/-/vscode-languageserver-textdocument-1.0.12.tgz",
-      "integrity": "sha512-cxWNPesCnQCcMPeenjKKsOCKQZ/L6Tv19DTRIGuLWe32lyzWhihGVJ/rcckZXJxfdKCFvRLS3fpBIsV/ZGX4zA==",
-      "dev": true,
-      "peer": true
-    },
-    "node_modules/vscode-languageserver-types": {
-      "version": "3.17.5",
-      "resolved": "https://registry.npmjs.org/vscode-languageserver-types/-/vscode-languageserver-types-3.17.5.tgz",
-      "integrity": "sha512-Ld1VelNuX9pdF39h2Hgaeb5hEZM2Z3jUrrMgWQAu82jMtZp7p3vJT3BzToKtZI7NgQssZje5o0zryOrhQvzQAg==",
-      "dev": true,
-      "peer": true
-    },
-    "node_modules/vscode-nls": {
-      "version": "5.2.0",
-      "resolved": "https://registry.npmjs.org/vscode-nls/-/vscode-nls-5.2.0.tgz",
-      "integrity": "sha512-RAaHx7B14ZU04EU31pT+rKz2/zSl7xMsfIZuo8pd+KZO6PXtQmpevpq3vxvWNcrGbdmhM/rr5Uw5Mz+NBfhVng==",
-      "dev": true,
-      "peer": true
-    },
-    "node_modules/vscode-uri": {
-      "version": "3.0.8",
-      "resolved": "https://registry.npmjs.org/vscode-uri/-/vscode-uri-3.0.8.tgz",
-      "integrity": "sha512-AyFQ0EVmsOZOlAnxoFOGOq1SQDWAB7C6aqMGS23svWAllfOaxbuFvcT8D1i8z3Gyn8fraVeZNNmN6e9bxxXkKw==",
-      "dev": true,
-      "peer": true
-    },
     "node_modules/watchpack": {
       "version": "2.4.2",
       "resolved": "https://registry.npmjs.org/watchpack/-/watchpack-2.4.2.tgz",
diff --git a/addon/package.json b/addon/package.json
index 58c8680f1..c7d5dd8c0 100644
--- a/addon/package.json
+++ b/addon/package.json
@@ -9,7 +9,7 @@
     "eslint": ">=0.8.0"
   },
   "devDependencies": {
-    "eslint-plugin-mozilla": "^3.7.5",
+    "eslint-plugin-mozilla": "^4.0.0",
     "eslint-plugin-no-unsanitized": "^4.1.2",
     "web-ext": "^8.3.0",
     "webpack": "^5.95.0",