Hire the Top 3% of Freelance Firefox Extension Developers

Toptal is a marketplace for dedicated Firefox Extension developers, engineers, programmers, coders, architects, and consultants. Top companies and startups choose Toptal Firefox Extension freelancers for their mission-critical development projects.

No-Risk Trial, Pay Only If Satisfied.

Hire Freelance Firefox Extension Developers and Engineers

Roman Shevchenko

Freelance Firefox Extension Developer
SerbiaToptal Member Since July 3, 2019

Roman is a full-stack developer and database designer with great attention to detail and team spirit. He takes the initiative to communicate ideas or architectural suggestions to maximize efficiency and minimize expense and effort, which is a win-win for everyone. Roman's areas of expertise include Node.js, TypeScript, .NET, Java (Kotlin), Go, PHP, Transact-SQL, MySQL, NoSQL, and interoperations between them, both on-prem and cloud deployment, design and implementation of APIs and protocols.

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Vitaliy Meshchaninov

Freelance Firefox Extension Developer
RussiaToptal Member Since April 4, 2014

Vitaliy is an experienced web engineer who also excels in back-end development. He is an expert in cutting-edge technologies and frameworks in web development, and he enjoys taking on challenging and complex new projects.

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Vu Quang Hoa

Freelance Firefox Extension Developer
VietnamToptal Member Since August 9, 2016

Hoa, nicknamed Joe, is a brilliant engineer capable of grasping new concepts very quickly. His most striking quality is the commitment he shows in whatever he does. He specializes in full-stack, highly scalable Python-Django applications. He has over 10 years of experience developing applications on the Django framework at many companies worldwide, one of them being the StoryTree company—one of the top 500 startups in the US.

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Kentaro Rose

Freelance Firefox Extension Developer
United StatesToptal Member Since October 30, 2016

Kentaro is a developer who specializes in web development. He has helped develop and maintain sites for various companies including Kaiser Permanente, HPMG, IFAW, and more. He develops with quality and user in mind--that is, code quality and performance for the back-end and a great user experience on the front-end.

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Hakob Poghosyan

Freelance Firefox Extension Developer
ArmeniaToptal Member Since September 6, 2018

Hakob is a full-stack web developer with over eight years of experience. He started out developing with C# but became consumed with JavaScript development and is currently working mainly with different JavaScript-based techs like React, Next.js, and Node.js. Hakob is also an expert in GraphQL and other Node.js-based back-end techniques. While he's experienced with and prefers JavaScript, he's also comfortable working with C#, Java, Python, SQL, and NoSQL DBs.

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Jonatan Fekete

Freelance Firefox Extension Developer
SpainToptal Member Since March 19, 2018

Johnny is a full-stack developer who specializes in building customer-facing web applications and business systems. He has more than a decade of experience in architecture design, PHP development, database engineering, and web-based front-end technologies. Johnny joined Toptal to find fresh companies with a growth mindset where original ideas are acknowledged and where he could contribute to the final product.

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Vuk Djapic

Freelance Firefox Extension Developer
SerbiaToptal Member Since August 16, 2016

Vuk has 15 years of experience as a developer, consultant, and system architect. Proficient in Java and JavaScript, he has worked on desktop and web applications, microservices, SQL and NoSQL data management solutions, AWS services and deployments, and many more related tools. Vuk always tries to align code, development procedures, and architecture with technology standards and best practices.

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Henrique Barbosa Coura

Freelance Firefox Extension Developer
BrazilToptal Member Since September 25, 2017

With over eight years in the industry, Henrique is a developer who has taken on full-stack, back-end, and leadership roles. He has extensive experience with Go, Python, the HTML stack, networking, Docker, Kubernetes, and more. A big part of Henrique's career has revolved around the web scraping business and all its techniques, such as mimicking human behavior, proxies, and data extraction. Recently he worked on distributed systems and a browser farm orchestration software on top of Kubernetes.

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Usman Sadiq

Freelance Firefox Extension Developer
PakistanToptal Member Since October 26, 2016

Usman has over ten years of experience developing applications on the PHP platform—including having been part of the development team at Booxmedia—where he polished up his expertise by working along with very senior and experienced talent. He communicates well and gets along famously with teams. Usman also develops applications using popular frameworks, including Laravel and CodeIgniter.

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Minica Ionut Cristian

Freelance Firefox Extension Developer
RomaniaToptal Member Since June 8, 2020

Cristian is a full-stack web developer with several years of experience building beautiful, performant mobile and web applications that meet or exceed industry standards. His enthusiasm for tech has led him to create several side projects in various areas, including machine learning. Cristian is also innately curious and willing to ask hard questions, quickly making him an asset to any project.

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Rowin Kaleb Hernández Fagúndez

Freelance Firefox Extension Developer
SpainToptal Member Since September 30, 2022

Rowin is a skilled web developer specializing in reactive frameworks. He is a results-oriented professional who enjoys coaching and supporting people to achieve product goals and delivering top-quality user experiences. Rowin thrives on supportive teams and engaging in exciting challenges.

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Discover More Firefox Extension Developers in the Toptal Network

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Toptal in the press

... allows corporations to quickly assemble teams that have the right skills for specific projects.

Despite accelerating demand for coders, Toptal prides itself on almost Ivy League-level vetting.

Our clients
Creating an app for the game
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Testimonials
Tripcents wouldn't exist without Toptal. Toptal Projects enabled us to rapidly develop our foundation with a product manager, lead developer, and senior designer. In just over 60 days we went from concept to Alpha. The speed, knowledge, expertise, and flexibility is second to none. The Toptal team were as part of tripcents as any in-house team member of tripcents. They contributed and took ownership of the development just like everyone else. We will continue to use Toptal. As a startup, they are our secret weapon.

Brantley Pace

CEO & Co-Founder

I am more than pleased with our experience with Toptal. The professional I got to work with was on the phone with me within a couple of hours. I knew after discussing my project with him that he was the candidate I wanted. I hired him immediately and he wasted no time in getting to my project, even going the extra mile by adding some great design elements that enhanced our overall look.

Paul Fenley

Director

The developers I was paired with were incredible -- smart, driven, and responsive. It used to be hard to find quality engineers and consultants. Now it isn't.

Ryan Rockefeller

CEO

Toptal understood our project needs immediately. We were matched with an exceptional freelancer from Argentina who, from Day 1, immersed himself in our industry, blended seamlessly with our team, understood our vision, and produced top-notch results. Toptal makes connecting with superior developers and programmers very easy.

Jason Kulik

Co-Founder

As a small company with limited resources we can't afford to make expensive mistakes. Toptal provided us with an experienced programmer who was able to hit the ground running and begin contributing immediately. It has been a great experience and one we'd repeat again in a heartbeat.

Stuart Pocknee

Principal

How to Hire Firefox Extension Developers Through Toptal

1

Talk to One of Our Industry Experts

A Toptal director of engineering will work with you to understand your goals, technical needs, and team dynamics.
2

Work With Hand-Selected Talent

Within days, we'll introduce you to the right Firefox Extension developer for your project. Average time to match is under 24 hours.
3

The Right Fit, Guaranteed

Work with your new Firefox Extension developer for a trial period (pay only if satisfied), ensuring they're the right fit before starting the engagement.

FAQs

  • How are Toptal Firefox Extension developers different?

    At Toptal, we thoroughly screen our Firefox Extension developers to ensure we only match you with talent of the highest caliber. Of the more than 200,000 people who apply to join the Toptal network each year, fewer than 3% make the cut. You’ll work with engineering experts (never generalized recruiters or HR reps) to understand your goals, technical needs, and team dynamics. The end result: expert vetted talent from our network, custom matched to fit your business needs.

  • Can I hire Firefox Extension developers in less than 48 hours through Toptal?

    Depending on availability and how fast you can progress, you could start working with a Firefox Extension developer within 48 hours of signing up.

  • What is the no-risk trial period for Toptal Firefox Extension developers?

    We make sure that each engagement between you and your Firefox Extension developer begins with a trial period of up to two weeks. This means that you have time to confirm the engagement will be successful. If you’re completely satisfied with the results, we’ll bill you for the time and continue the engagement for as long as you’d like. If you’re not completely satisfied, you won’t be billed. From there, we can either part ways, or we can provide you with another expert who may be a better fit and with whom we will begin a second, no-risk trial.

Tap Into World-Class Talent

  • Trusted Experts Only

    Trusted Experts Only

    All of our talent are seasoned experts who ramp up quickly, readily contribute as core team members, and work with you to minimize onboarding time.

  • The Right Fit

    The Right Fit

    We have a knack for matching you with the right fit. Start working with your new hire on a no-risk trial period, paying only if satisfied.

  • Scale as Needed

    Scale as Needed

    Hire talent within 48 hours and scale your team up or down as needed, no strings attached.

  • Seamless Hiring

    Seamless Hiring

    We handle all aspects of billing, payments, and NDA’s. Let us take care of the overhead while you focus on building great products.

  • Flexible Engagements

    Flexible Engagements

    Choose the engagement type that suits your needs — hourly, part-time, or full-time — with the ability to change anytime.

  • Expert Talent Matching

    Expert Talent Matching

    Focus on your project and enjoy support from your dedicated account executive and expert talent matcher.

Top Firefox Extension Developers Are in High Demand.

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