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English
$
USD
I will add stripe subscriptions and firebase auth to your chrome extension
Shahzad Munir
About this gig
Your Chrome extension already works but can it generate recurring revenue?
I turn existing Chrome extensions into paid SaaS products with Stripe subscriptions, Firebase or Supabase authentication, secure webhooks, and premium feature access control.
I can add:
Stripe Checkout and recurring plans
Firebase, Supabase, Google, or email login
Secure backend endpoints and webhook verification
Free, trial, and paid feature gating
Stripe Customer Portal
Subscription syncing and access revocation
Account, onboarding, or upgrade pages
API, database, and Chrome storage integration
Manifest V3 testing and store-ready updates
Stripe secret keys stay on the backend, not inside the extension. You receive updated source code, tested ZIP files, setup notes, and an architecture summary.
This gig is for monetizing an existing extension. New development belongs under my custom Chrome extension gig.
Please message me before ordering with your source code, backend details, pricing plans, and paid-feature list. Stripe Connect, marketplaces, complex tax logic, major redesigns, and large dashboards require a custom offer. Store approval and revenue cannot be guaranteed.
Get to know Shahzad Munir
Shahzad Munir
Chrome Extension, Browser Automation SaaS Development
- FromPakistan
- Member sinceFeb 2023
- Last delivery1 year
Languages
English, Urdu, Punjabi, Arabic
I develop Chrome extensions for businesses, SaaS founders, and agencies. My work includes browser automation, Manifest V3 development and debugging, secure API integrations, Stripe subscriptions, Firebase authentication, and AI features using OpenAI, Claude, or Gemini.
I write maintainable JavaScript and TypeScript, use secure backend architecture, test agreed workflows, and provide clear documentation. From new extensions to repairs and paid SaaS features, I help turn practical ideas into dependable browser products.
Message me with your requirements so I can recommend the right solution.
My Portfolio
FAQ
Can you monetize my existing Chrome extension?
Yes. I can add authentication, Stripe subscriptions, webhook-based billing updates, and paid-feature access to an existing extension. I must review the source code and backend before confirming the package.
Can you build a completely new extension under this gig?
No. This gig is focused on monetizing an existing extension. New extension development is available through my custom Chrome extension development gig.
Which authentication systems can you integrate?
I can work with Firebase, Supabase, Google login, email and password, custom-token authentication, or an existing backend. The exact method depends on your extension architecture.
Which Stripe features can you add?
I can add Stripe Checkout, recurring subscriptions, webhooks, free and paid plans, trials, upgrade and cancellation flows, Customer Portal, and subscription-based feature access.
Will Stripe secret keys be placed inside my extension?
No. Sensitive Stripe operations and secret keys must remain on a secure backend or serverless function. The extension communicates only with the agreed protected endpoints.
How will premium features be protected?
Paid access is controlled through authenticated users, backend-verified subscription status, database records, and agreed entitlement rules. The exact implementation depends on your existing architecture.
Can users manage or cancel their subscriptions?
Yes. Stripe Customer Portal can be integrated so users can manage billing details, view invoices, upgrade, downgrade, or cancel according to your configured rules.
Can you help update the Chrome Web Store version?
Yes. I can prepare the updated package and assist with submission through your developer account. Final review time and approval are controlled by Google and cannot be guaranteed.
Do you support Stripe Connect or marketplace payments?
Stripe Connect, multi-vendor payouts, complex usage billing, and marketplace systems require a source-code review and custom offer because their scope is significantly larger.
What does post-delivery support include?
Support covers corrections related to the agreed and delivered integration. New features, new pricing rules, third-party changes, or additional platforms are outside the original scope.
