diff --git a/package.json b/package.json
index 9c7096e..bfe7df4 100644
--- a/package.json
+++ b/package.json
@@ -6,13 +6,12 @@
   "private": true,
   "description": "Convenient tools for Moodle, InNoHassle and other services at Innopolis University.",
   "scripts": {
-    "dev": "vite",
-    "build": "npm run build:chrome",
+    "dev": "BROWSER=chrome vite",
+    "dev:firefox": "BROWSER=firefox vite",
     "build:chrome": "tsc && BROWSER=chrome vite build",
     "build:firefox": "tsc && BROWSER=firefox vite build",
-    "zip:chrome": "npm run build:chrome && node scripts/zip.js",
-    "zip:firefox": "npm run build:firefox && node scripts/zip.js",
-    "preview": "vite preview",
+    "zip:chrome": "npm run build:chrome && BROWSER=chrome node scripts/zip.js",
+    "zip:firefox": "npm run build:firefox && BROWSER=firefox node scripts/zip.js",
     "lint": "eslint .",
     "lint:fix": "eslint . --fix",
     "deps": "taze -wIr",
diff --git a/scripts/zip.js b/scripts/zip.js
index 3a181e9..b56d21c 100644
--- a/scripts/zip.js
+++ b/scripts/zip.js
@@ -1,12 +1,22 @@
 import { createRequire } from 'node:module'
+import process from 'node:process'
 import gulp from 'gulp'
 import zip from 'gulp-zip'
 
 const require = createRequire(import.meta.url)
 const manifest = require('../build/manifest.json')
 
+const postfix = process.argv[2] ? `-${process.argv[2]}` : ''
+
+const isFirefox = process.env.BROWSER === 'firefox'
+const browserPostfix = isFirefox ? '-firefox' : '-chrome'
+
+const dashedName = manifest.name.replaceAll(' ', '-')
+const fileName = `${dashedName}-${manifest.version}${postfix}${browserPostfix}.zip`
+
 gulp
   .src('build/**')
-  .pipe(zip(`${manifest.name.replaceAll(' ', '-')}-${manifest.version}.zip`))
+  .pipe(zip(fileName))
   .pipe(gulp.dest('package'))
-console.log(`${manifest.name.replaceAll(' ', '-')}-${manifest.version}.zip`)
+
+console.log(fileName)