We build extensions users love—and stores approve
CodeMyExtension is a Chrome extension development company focused on secure Manifest V3 builds, smooth store approvals, and long-term maintainability for teams across the United States.
MV3-native • Publishing & Compliance • Performance & Security • US-focused Delivery
Our mission
Help product teams ship extensions that actually move the needle—faster tasks, cleaner workflows, fewer errors—without fighting MV3 or store policies. We combine tight engineering standards with practical UX so your extension is fast, observable, and built to last.
What makes us different
Extensions aren’t mini-websites; they’re constrained apps with unique rules. We design for that reality.
- MV3 specialists: service workers, declarativeNetRequest, alarms, offscreen docs.
- Compliance-first publishing: permissions minimization, privacy labels, reviewer responses.
- Secure by default: least privilege, strict CSP, secret handling, code reviews.
- Observable & fast: runtime metrics, error telemetry, performance budgets.
- Maintainable code: typed code, modular architecture, docs, CI tests.
- Cross-browser delivery: Chrome first, then Edge/Firefox with consistent UX.
Our process
A predictable path from idea to approval—then iteration.
1) Discover & Design
Workshops, requirements, data flows, UX, permissions audit, and a migration or build plan.
2) Build & Test
MV3-native architecture, content script safety, messaging patterns, unit/integration tests, accessibility checks.
3) Harden
Performance tuning, CSP tightening, telemetry, and security reviews.
4) Publish
Listing assets, privacy disclosures, reviewer Q&A, rollout plan.
5) Measure & Grow
Analytics, A/B hook points, roadmap sprints, and support SLAs.
Security & compliance (our standards)
- Permission minimization & threat modeling
- Strict Content Security Policy
- Token & secret handling guidelines
- Data retention & privacy labeling
- Audit logs & consent for automation
- Dependency scanning & update cadence
- Incident response playbook & SLAs
Tooling & tech stack
We choose stable, well-documented tools that keep your extension maintainable.
- TypeScript
- Webpack/Vite
- Jest/Playwright
- GitHub Actions
- Sentry/Telemetry hooks
- IndexedDB/chrome.storage
- Feature flags
- Storybook (optional)
- Lighthouse budgets
Meet the team
A compact, senior team with deep extension experience.
Extension Architect
MV3 patterns, performance, security.
Front-end Engineer
UI, content scripts, accessibility.
Backend/Integrations
APIs, auth, queues.
QA Lead
Test strategy, devices, regression.
Publishing Specialist
Listing assets, reviews, policy changes.
Impact (selected highlights)
- MV2 → MV3 migrations with first-try review approvals
- Automation extensions cutting manual steps by 50–70%
- Performance tuning reducing runtime errors by 40–60%
Testimonials
“Migration finished on schedule and passed review the first try.”
— Head of Product, B2B SaaS (NY)
“The codebase is clean, documented, and easy to extend.”
— CTO, E-commerce (TX)
“Publishing support saved weeks—we shipped cross-browser in a quarter.”
— Agency Founder (CA)
Careers & partnerships
We occasionally open roles for MV3 engineers, QA, and publishing specialists. Agencies and SaaS teams partner with us for complex builds or to cover migration spikes.
Frequently asked questions
Where are you based and which markets do you serve?
We’re US-focused with global delivery capabilities. Meetings and support align to US time zones.
Do you take over existing codebases?
Yes. We audit the code, map MV3 gaps, and propose a stabilization or migration plan.
Can you guarantee Chrome Web Store approval?
No one can guarantee it, but we significantly improve outcomes with correct permissions, privacy disclosures, and proactive reviewer communication.
How do you handle automation/scraping use cases?
We design compliance-first flows—user consent, rate limits, audit logs—and avoid abusive or policy-violating behaviors.
What engagement models do you offer?
Fixed-scope builds, sprint-based delivery, and monthly retainers for maintenance and new features.
Ready to work together?
Bring us your goals—we’ll scope a clear plan, timeline, and cost.
NDA on request • Clear ownership terms • Store-approval support