Build Powerful & Privacy-Friendly Firefox Extensions
Firefox Extension Development
At Tantrija, we develop custom Firefox extensions using the latest WebExtension APIs. Whether it’s automation, scraping, wallet integrations, or productivity tools — we create secure, lightweight, and scalable browser add-ons tailored to your exact needs.
Want to build a Firefox add-on?
Our developers help startups, businesses, and indie founders turn ideas into Firefox extensions that work flawlessly across platforms. Let’s bring your vision to life.
Book a Free ConsultationOur Offering
We develop Firefox extensions for automation, productivity, Web3 wallets, data scraping, form filling, and custom enterprise use cases — with full support for cross-browser deployment and Mozilla store publishing.
Custom Firefox Extension Development
We design and build tailor-made Firefox add-ons for businesses, startups, and SaaS platforms. Whether it’s background scripts, content scripts, or browser actions — your extension will be fully customized and production-ready.
Cross-Browser WebExtension Porting
Already have a Chrome extension? We help port it seamlessly to Firefox using the WebExtension API — ensuring full compatibility, UI consistency, and feature parity across browsers.
Web3 & Wallet Extension Integration
We build crypto and blockchain-based Firefox extensions with MetaMask, WalletConnect, custom token logic, and smart contract interactions — all with secure transaction signing and onboarding.
Form Automation & Autofill Extensions
Save time with extensions that auto-fill forms, handle repetitive data entry, capture page info, and integrate with CRMs or Google Sheets. Perfect for recruiters, sales teams, and operations-heavy workflows.
Data Scraping & Content Extraction
Extract structured data from websites using lightweight Firefox scraping extensions with built-in rate limiting, CSV export, background scheduling, and secure storage.
Productivity Tools & Popup Dashboards
Develop Firefox add-ons that include popups, dashboards, sticky note overlays, calendar reminders, screen capture tools, or session managers — fully synced and UX-optimized.
Publishing & Mozilla Add-On Store Compliance
We handle packaging, permissions, privacy policies, and content security policy (CSP) audits to ensure smooth publishing on the Firefox Add-On Store (AMO).
Enterprise & SaaS Extension Solutions
Need a custom internal tool or B2B extension? We build Firefox add-ons that integrate with APIs, internal dashboards, or third-party platforms with advanced permission control and versioning support.
Benefits
Cross-Platform Ready
Works on Firefox, Chrome, Edge
We build WebExtensions using standard APIs for multi-browser compatibility and future scalability.
Privacy-First Design
Built for user trust and compliance
Our extensions are built with secure coding practices, minimized permissions, and GDPR/CSP-compliant structures.
Optimized Performance
Fast, light, and efficient
Our Firefox extensions are optimized to run smoothly without slowing down the browser or affecting user experience.
Let’s Build Your Extension — the Right Way
