LightningAddon

Building a browser extension SaaS usually means solving the same problems over and over: auth, billing, multi-browser builds, typed messaging. LightningAddon ships all of it—so the first line of code you write is the one that makes your extension unique. One codebase targets Chrome, Brave, Edge, Opera, Firefox, and Zen. Choose Firebase or Supabase, drop in Stripe, and you're done.

• · One codebase, six browsers—Chrome, Firefox, Brave, Edge, Opera, Zen
• · Provider-agnostic auth—Firebase or Supabase with full parity
• · Stripe billing in the service worker—no CORS, keys stay server-side
• · Typed runtime messaging across popup, content script, and background
• · Clone, configure, and have a loadable extension in 15 minutes