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For the last 12 years we developed 300+ Browser Extensions

Our wide experience allows us to complete even the most complex projects in short terms with the best quality.

What We Do:

Why Browser Extensions

It is difficult to imagine modern browsers without extensions support. They improve user experience significantly and increase their loyalty. That is why it has sense to think about advantages of browser extensions for your business. You can tell us a short story about your business and our experts will suggest you how to get benefits from browser extensions.

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Interesting Facts

  • There are more then 3 billion Internet users worldwide

  • More then 50% Internet users have add-ons installed

  • Google Chrome is the most popular browser worldwide

Full Stack Development

It is very convenient to have one team of professionals who will do all parts of your project. We’re always stay on top the modern technologies and provide you full stack development. We are professionals in the next technologies:

Node.js Development


AngularJS Development


Python Development


Flask Development


Java Development


HTML5 / CSS3 / JavaScript Development


By the Numbers

We are proud by results of our work. There are some of interesting facts about us:

years of proven experience
browser extensions developed
customers in
35+ countries

How to Get Started

  1. Send us brief description of your project
  2. Our experts will contact with you to discuss details
  3. We will prepare and send you detailed estimation
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Our Clients


We are very satisfied with the work of ExtensionDev. They had really understood our brief and had always been a proactive force to suggest us the best way to realize our needs in the extension.

Our PriceSniper extension is exactly the way we dreamed it!

Frank Durandot, So What
The best company if you want to develop any chrome extension or firefox add-on. Excellent work, quick reply and appreciable support even after delivering the project.

Thank you, guys!

Veeresh Divereddy, TubeMaker
Great job on our firefox extension, take 24 hours to deliver and get everything we ask for.

Will hire again for sure! Thank you!

Dominic Morissette, Police du NET Inc
We got a great help from ExtensionDev with integrating our components into the chrome extension. Production of requirements, development and problems solving were quick and reliable.

Thanks for cooperation!

Nikita Botalov, WorkFusion
We had a great experience working with ExtensionDev. Viktar thought through our project in great detail, pro-actively suggested the best alternatives and then delivered his work within the time-frame agreed. He is experienced, reliable, professional and integrated well within our processes. We wouldn’t hesitate to use him again.
Annabelle Diamantino, Lusk

Why don’t simply discuss your project with us?

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