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Browser + System

Browser Plugins

Data from your system right where your team works - in the browser, in the context of the page. We build Chrome, Edge, and Firefox extensions: integration with internal systems, data validation, step automation. And a plugin released publicly? It can become a measurable user-acquisition channel.
Book an intro call

After the first call, you receive an initial assessment and a recommended next step.

The challenge

When does a browser plugin solve the team's problem?

Data not available where it's needed. Manual transfer of information between the system and the browser. Errors caused by users having to remember a procedure instead of being guided through it. And from a business perspective - the lack of a tool that gives potential clients value and builds a relationship with the brand.

Technical details and delivery approach

A browser plugin gives the user data and functions exactly where they work - no tab switching, no copying, no separate system. We build Chrome, Edge, and Firefox extensions both as internal tools for teams and as public products that can build interest in a brand and product.

All our plugins follow the Manifest V3 standard - the current requirement of Chrome and Edge - with least-privilege permissions, encrypted communication, and local data processing wherever possible.

Case studies

For the HistoriaSzkod.pl platform we built a Chrome plugin that automatically detects VIN numbers on automotive listing pages - a 90% reduction in verification time. The project was delivered in collaboration with Datazen. If the scenario needs full infrastructure - a backend, database, admin panel - we combine the plugin with a custom system.

What we deliver
  • Chrome, Edge, and Firefox - one codebase, three browsers, one rollout by IT
  • Your system in the context of the page: data appears where the user works
  • Fetching, verifying, and enriching data without switching between tools
  • Real-time validation: errors visible before submission, not after
  • Manifest V3 security: minimal permissions, encrypted communication, Google review
  • Public plugin with measured impact: installs, active use, and visits to the product
  • Post-launch maintenance: the plugin keeps working after Chrome, Firefox, and source-system updates
Real scenarios

The plugins we build most often

We've built or designed each of these scenarios for clients.

Scenario 01

Plugin as a brand touchpoint

Ads cost money, the client clicks and rarely comes back. There's no tool that gives users value and regularly reminds them of the brand.

How it works
  1. We identify an industry problem the plugin will solve better than a website
  2. We build an extension with a real function - e.g. automatic data checks on listing pages
  3. We publish in the Chrome Web Store, optimised for the store's search
  4. Users come back daily - every use is a contact with your brand
  5. We measure installs, active use, and visits to the product to assess the channel's real potential
A recurring brand touchpoint and a measurable channel of product interest. Delivered for HistoriaSzkod.pl - 90% reduction in VIN verification time.
Scenario 02

Enriching sales context

A salesperson opens LinkedIn, then the CRM, copies data, goes back to the browser. Five minutes for context that should be visible instantly.

How it works
  1. The salesperson opens a client profile on LinkedIn or an external portal
  2. The plugin recognises the page context and fetches data from the internal system
  3. An overlay shows order history, payment status, and the assigned account manager
  4. One click - a note or task lands in the CRM without switching tabs
Full client context in seconds instead of minutes. The salesperson runs more conversations because none of the time goes on hunting for data.
Scenario 03

Data validation on external portals

An employee fills in a form on an external portal - registration, complaint, order. They make mistakes because they have to remember the rules from the company system.

How it works
  1. The employee opens a form on the external portal
  2. The plugin fetches validation rules from the company system in the background
  3. Fields are checked in real time - errors are visible before submission
  4. Correct data reaches the source system straight from the browser
  5. A new employee fills in the form just as correctly as an experienced one
Errors eliminated at the source - before the form is sent. Faster onboarding of new people.
Process

What does building a browser plugin look like?

Observing work in the browser

We watch how the team actually works - step by step, on real pages and systems. The plugin's scope follows from that.

workshop

Designing the improvement

We identify what's worth improving and how: data validation, automatic content detection, guiding users through the correct flow.

concept + estimate

Build and tests on real scenarios

We build to the Manifest V3 standard and test on the actual pages and data your team works with.

pilot version

Deployment and maintenance

Publication in the Chrome Web Store or distribution via browser policy. We maintain the extension alongside changes in source systems.

ongoing partnership
Who it's for

This makes sense if...

  • 01 Your team works in the browser and needs data from an internal system right there - without opening a new tab.
  • 02 You want to reduce errors and standardise work without overhauling the entire environment.
  • 03 You want a tool that gives users concrete value - instead of another ad they can ignore.
A different approach may be better if...
  • — The problem occurs rarely or the scale is too small to justify building and maintaining an extension.
  • — There’s no consent for integration, no access to source systems, or no stable environment for the plugin to operate in.
  • — There’s no business-side process owner to confirm scenarios, exceptions, and criteria for correct operation.
FAQ

Frequently asked questions about browser plugins

Which browsers do you build plugins for?

Chrome, Edge, and Firefox. One codebase, three browsers. If your team uses a specific browser - we’ll adapt.

Can the plugin connect to our internal system?

Yes. We integrate plugins with APIs, databases, and company systems. This is one of the most common scenarios - automatically fetching or sending data between the browser and the system.

What happens when the page or system the plugin works with changes?

We maintain plugins and respond to changes in source systems. This is part of our offer - the extension doesn’t stop working when an external tool is updated.

Can a plugin help with client acquisition?

Yes - if it solves a specific industry problem and gives users value without extra effort on their part. A public extension can build brand recognition, regular contact, and traffic to the product. We assess the potential through installs, active use, and transitions to the target system, not by publication in the store alone.

Will the plugin be secure?

We build exclusively to the Manifest V3 standard - the current requirement of Chrome and Edge. The plugin requests access only to the resources it genuinely needs (least privilege). Data is processed locally where possible, and server communication is encrypted. Public plugins pass Google’s review before publication in the Chrome Web Store. For internal plugins we offer distribution via managed browser policy - IT enforces installation without publishing to a store.

When doesn’t a plugin make sense?

When the problem can be solved by an API integration without user interaction in the browser - a plugin is overkill. When there’s no stable environment: source system APIs change daily with no documentation. We’ll advise against the project before it starts. If a plugin is too little and a full custom system too much - we’ll check whether process automation solves the problem faster and cheaper.

Have a question that's not listed here? Write to us - we'll give you a straight answer.

Contact

Describe a problem or an idea for a product

Describe the process your team performs manually in the browser. We'll come back with an assessment of whether a plugin is the right tool - and what exactly it would improve.

In a few sentences: what you want to build or improve, why, and by when. No tech details needed - we'll ask about the rest.

Prefer to write directly? [email protected]

After first contact we schedule an intro call and agree on a plan of action.