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Mozilla Firefox Experts in Germany

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Hire experts who test and optimize Firefox across responsive websites, browser extensions and enterprise web applications, with strong knowledge of JavaScript, web standards and automated testing. Get fast, precise matching with vetted, available freelancers.

Meet FRATCH Experts in Germany, who have recently used Mozilla Firefox

Verified expert

Roxana G.

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Freelance Senior Frontend Developer

Munich
Roxana G.

Last position:

Freelance Senior Frontend Developer at RHI Magnesita

  • Designed and developed a high-performance internal resource management platform using React and TypeScript, optimizing dynamic data rendering and state management.
  • Built a React Native application to support mobile access to internal tools, enabling on-the-go project tracking for field teams.
  • Developed custom 2D canvas-based visualizations using Pixi.js to simulate material flows and refractory layer behaviors.
  • Integrated Pixi.js with React components for interactive diagrams and real-time UI updates.
  • Developed interactive 3D visualizations using React.js for displaying refractory product layouts and simulations, supporting engineering and sales teams with dynamic product previews.
  • Integrated Three.js within the React ecosystem to allow manipulation of 3D models in real-time via browser, enhancing user engagement and field configurability.
  • Integrated a headless CMS to enable dynamic content updates by non-technical users, reducing content deployment time by 40%.
  • Led AWS CloudFront optimization initiatives, improving portal load speeds by 30% globally.
  • Actively collaborated with cross-functional Agile teams and product owners to deliver prioritized features with a fast feedback loop.
  • Key Technologies: React.js, React Native, Three.js, TypeScript, Contentful CMS, AWS S3/Lambda/CloudFront, Cypress, Agile Scrum
Verified expert

Reinhard M.

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Consultant

Hannover
Reinhard M.

Last position:

Consultant at Infineon

  • Preparation of data for creating masks for the manufacture of semiconductor chips.
Verified expert

Ioan D.

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Senior Software Developer

Roßtal
Ioan D.

Last position:

Senior Software Developer at ING

  • Tribe Home, Product Area 4 - Customer in Life, Squad Cybertron.
  • Analysis, design, development, and testing of new requirements for Optimmo, construction financing software.
  • Analysis, design, development, and testing of the JEE application MWS kredit-baufi.
  • Analysis, design, development, and testing of the Wicket Optimmo application.
  • Analysis, design, development, and testing of kredit-baufi batch programs.
  • Migration of kredit-baufi batches to RHEL9.
  • CiL SCS Consumer Pacts with Finagle.
  • CiL ScS Touch Point Architecture Integration.
  • Team size: 10.
  • Tools / Frameworks: OpenJDK Java 17, Kotlin 1.6.0, Azure, Jenkins, Stash, JEE, Gitlab, JIRA, Confluence, git, Spring 6.0, Sping Cloud, Spring Data, Hibernate, JPA, JMS, Kafka, Oracle, PL/SQL, Red Hat Enterprise Linux (RHEL), Maven, REST, JBoss, Intellij IDEA, Wicket 9 and 10, Istio.
Verified expert

Jad N.

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Engineering Director (Hands-on)

Berlin
Jad N.

Last position:

Software Developer at Side Project

  • Vram.run: Rust, TypeScript, HF Inference API with 19 providers, 220+ HW configs, and 30+ cloud GPUs. Search a model to see which API providers serve it, which GPUs can run it locally (and how fast), and what cloud rental would cost. Or search your hardware and see what fits. Also includes a Rust CLI.
  • Psychotron: JavaScript, Web Audio API, AudioWorklet, Canvas 2D. Front-end for flash fiction audiobook with Web Audio DSP chain featuring pitch-shifting, 12-voice chorus, flanger, 13-band EQ, and convolver reverb. Includes a 2D canvas effect morphing engine and synchronized teleprompter.
  • RecentWork: Swift, macOS, FSEvents, launchd. macOS daemon that watches project directories and maintains a flat folder of symlinks to recently modified files. Homebrew installable.
  • Mini-llm: Bash, macOS, launchd, Ollama, llama.cpp, MLX, Open WebUI. Single command that turns a Mac Mini into a headless AI server.
  • ThatSlop: JavaScript. Chrome/Firefox extension for AI content detection on LinkedIn and Twitter.
  • Smux: Bash, tmux. Human-friendly tmux wrapper that is Homebrew installable.
  • Learn Rust Course: Rust. Course on Rust’s memory model for C++ programmers, written from experience of transitioning from C++ to Rust at Irreducible.
Verified expert

Michael V.

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AI Project Management and Governance Setup

Unkel
Michael V.

Last position:

AI Project Management and Governance Setup at Geno Verband Neu-Isenburg

  • Creating AI governance, especially including the works council
  • Drafting the AI framework works agreement, MS Copilot works agreement, and AI testing schemes
Verified expert

Akram B.

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Frontend / Backend Developer

Hamburg
Akram B.

Last position:

Frontend / Backend Developer at ethikPool / folioNet

  • Developed a complete solution for ethics committees and medical associations, from application submission to approval
  • Integrated a DICOM viewer to display medical images (CT, MRI)
  • Implemented a file system with folder and subfolder structures
  • Identified and fixed security vulnerabilities
  • Improved code quality and application performance
  • Maintained customer servers
Verified expert

Erik S.

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Project Manager, Subproject Manager, PMO

Bonn
Erik S.

Last position:

Project Manager, Subproject Manager, PMO at Martinswerk GmbH / Huber Advanced Materials

  • Filled a short-term staffing gap for this project.
  • Continued multiple projects and cleared documentation backlogs.
  • Familiarized the support team with agile practices (self-organization, task prioritization).
  • Took over project control and stakeholder management.
  • Acted as the communication link between technical staff, users, and project owners.
  • Served as Agile Coach for the team.
Verified expert

Tommy G.

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1st Level Supporter / Service Technician / IT Systems Administrator

Neu-Isenburg
Tommy G.

Last position:

1st Level Supporter / Service Technician / IT Systems Administrator at Freelancer

  • Support for end users by telephone and Skype
  • Error diagnosis and problem solving by telephone and remote access
  • Independently receiving incident reports
  • Forwarding unresolved problems to the appropriate escalation level
  • Reinstalling incorrectly installed software or incorrectly configured computers
  • Receiving requests and incident reports by email or ticket system
  • Identifying and classifying problems and requests
  • Performing initial diagnostic steps and attempting solutions for frequently occurring problems
  • Providing basic technical support to users in the use of hardware and software
  • Forwarding complex problems and requests to 2nd or 3rd Level Support
  • Documenting incidents and solutions in a ticket system
  • Monitoring and escalating open tickets to ensure that problems are resolved on time
  • Communicating with users to provide updates on the progress of problem resolution
  • Installing, configuring and maintaining hardware and software components
  • Repairing and replacing defective components
  • Monitoring and optimizing system performance and network connections
  • Supporting the troubleshooting and diagnosis of technical problems
  • Installing and configuring operating systems and application software
  • Ensuring compliance with security policies and data protection regulations
  • Managing user accounts and access rights
  • Performing regular backups and recovery processes
  • Creating technical documentation and instructions
  • Training users in the use of IT systems and applications
  • Technologies/Methods: Skype, ticket system
Verified expert

Karl-W. G.

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Web application for CRM, ERP, calculation

Gemünden (Wohra)
Karl-W. G.

Last position:

Software Architect and Developer at Sensor Manufacturer

  • Consulting and development in a greenfield project for acquisition of sensor data.

  • The new solution is meant to replace an existing system, where most of the logic is hardcoded and which is primarily targeted to the German market.

  • The new system is meant to support international markets and the logic and configuration can be changed easily.

  • The new system has to support multiple time zones and international requirements and regulations.

  • Working closely with the in-house software architect, developing Enterprise Architect models, proof-of-concepts and implementations.

  • The complete system has a generative approach, where C# code, database, dashboards and reports are generated from compact descriptions.

  • The system is meant to be stable and secure. Encryption, hashing and signing are used throughout.

  • After extensive performance measurements and various evaluations, we decided to use the ClickHouse database, which provides excellent performance and rather good SQL compatibility.

  • Sparx Enterprise Architect, JAMA, Miro.

  • ClickHouse Database, Linux / Debian / Ubuntu, GitLab.

  • Docker, Cobasoft Log & LogVw.

  • Microsoft: Visual Studio, C#, ASP.NET, Test.

  • HTML5, CSS, JavaScript, JSON.

  • Edge, FireFox, Chrome, Chromium.

  • Code and HTML generation.

Verified expert

Thomas M.

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External Representative and Consultant

Kolbermoor
Thomas M.

Last position:

External Representative and Consultant at Aeromarintime Systembau GmbH

  • External representative and consultant for the integrated management system according to ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018
  • Industry: Defense industry
  • Sector: System house for marine communication
  • Employees: 50
Verified expert

Chitrung N.

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Staff Software Engineer - Infrastructure

Berlin
Chitrung N.

Last position:

Staff Software Engineer - Infrastructure at Workpath

  • Owning, designing, securing, maintaining reliability of the cloud based platform environments
  • Increasing developer productivity and growing the infrastructure team horizontally and vertically to 5 engineers
  • Realised infrastructure cost reduction of 50% by utilizing efficient spot instances
  • Improved PE developer efficiency by 15% with survey led development process
Verified expert

Stefan F.

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Project Management – Telecommunications

Frankfurt am Main
Stefan F.

Last position:

Project Management – Telecommunications at 1&1 Versatel

  • Set of concurrent projects (BSS/OSS related)
Verified expert

Fabian Z.

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Scientific Employee

Erftstadt
Fabian Z.

Last position:

Freelance IT Specialist

IT specialist Application Engineering / Software Development since 2012

Verified expert

Igor K.

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Internship Semester

Berlin
Igor K.

Last position:

Freelance Software Developer

Discover over 15,000 top freelancers

Statistics of experts using Mozilla Firefox

Aggregated from the professional profiles of matched freelancers.

Experience

27 years

Mozilla Firefox experts in Germany have 27 years of professional experience on average.

Position duration

2.9 years

Mozilla Firefox experts in Germany stay in a single position for 2.9 years on average.

Positions per freelancer

15

Mozilla Firefox experts in Germany have completed 15 positions on average over the course of their careers.

Top business areas

Information Technology, Project Management, Product Development

Mozilla Firefox experts in Germany have gathered most of their hands-on project experience in Information Technology, Project Management, and Product Development.

Top industries

Information Technology, Banking and Finance, Automotive

Mozilla Firefox experts in Germany are most in demand in Information Technology, Banking and Finance, and Automotive.

Certification focus areas

Information Technology, Project Management, Quality Assurance

Mozilla Firefox experts in Germany earn their certifications most often in Information Technology, Project Management, and Quality Assurance.

Bachelor's degree or higher

100%

100% of Mozilla Firefox experts in Germany hold at least a Bachelor's degree.

Master's degree or higher

31%

31% of Mozilla Firefox experts in Germany hold at least a Master's degree.

Certifications per freelancer

2

Mozilla Firefox experts in Germany hold 2 professional certifications on average.

Most common languages

German, English, Spanish

Mozilla Firefox experts in Germany most often speak German, English, and Spanish.

Speak two or more languages

88%

88% of Mozilla Firefox experts in Germany speak two or more languages.

Based on our profile pool as of 29 Oct 2026.

Daily rate distribution

0% 25% 50% 75% 100%
7% of Mozilla Firefox experts in Germany charge less than €480 per day.
20% of Mozilla Firefox experts in Germany charge between €480 and €640 per day.
27% of Mozilla Firefox experts in Germany charge between €640 and €800 per day.
13% of Mozilla Firefox experts in Germany charge between €800 and €960 per day.
13% of Mozilla Firefox experts in Germany charge between €960 and €1120 per day.
13% of Mozilla Firefox experts in Germany charge between €1120 and €1280 per day.
7% of Mozilla Firefox experts in Germany charge €1280 or more per day.
<€480 €480-​640 €640-​800 €800-​960 €960-​1120 €1120-​1280 €1280+

The chart shows how the daily rates of experts in this technology in Germany are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows the share of experts charging within that range.

Average rates of experts in Germany using Mozilla Firefox

Rates are based on recent contracts and do not include FRATCH margin.

1000
750
500
250
Rate comparison chart
Daily rate avg. 808 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

1000
750
500
250
Rate comparison chart
Median rate 720 €

The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.

Calculated based on our freelancers’ daily rates as of 29 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.

Mozilla Firefox experts industry focus

See which industries our matched freelancers work in most often — every figure is calculated live from the freelancers on FRATCH.

  • Information Technology (88%)
  • Banking and Finance (59%)
  • Automotive (47%)
  • Education (41%)
  • Manufacturing (41%)
  • Energy (35%)
  • Professional Services (35%)
  • Transportation (29%)

Please note that freelancers can work across multiple industries, so percentages overlap.

About the technology

Firefox in the browser ecosystem

Mozilla Firefox is an open-source web browser built by the Mozilla Foundation. It runs on Windows, macOS, Linux, Android and iOS, and is known for strong privacy controls, developer tools and support for modern web standards. Companies use Firefox when they need reliable access to web applications beyond a single browser vendor.

Websites and applications

Firefox specialists validate how websites and business applications behave across devices, operating systems and screen sizes. Their work can cover:

  • Responsive layouts and accessible interfaces
  • JavaScript features, forms and media playback
  • Browser compatibility and performance checks
  • Security and privacy-related behavior

They help teams identify rendering differences before users encounter them.

Extensions and tooling

The Firefox ecosystem includes Firefox Add-ons, WebExtensions APIs, Firefox Developer Tools and automation interfaces such as WebDriver and Playwright. Specialists work with JavaScript, HTML and CSS, inspect network requests, analyze performance and debug storage, permissions and content scripts. They may also connect browser testing with CI pipelines and release workflows.

When companies need support

Freelance expertise is useful when a team is launching a browser extension, migrating a complex web interface or investigating a Firefox-only defect. It also helps during accessibility reviews, browser test expansion and privacy-sensitive product work. In Germany, specialists may support distributed product teams or collaborate on-site with regulated industries and internal IT groups.

Skills that distinguish specialists

Strong professionals understand the difference between a browser defect, an invalid assumption in application code and a gap in standards support. They use the Firefox Developer Tools precisely, reproduce issues with controlled test cases and document findings clearly. Useful adjacent skills include accessibility standards, HTTP, web security, TypeScript, automated testing and Linux-based development environments.

Choosing the right professional

Look for evidence of work with the relevant browser APIs, extension permissions, responsive interfaces or test frameworks. Ask how the specialist handles Firefox releases, cross-browser fallbacks and defects that cannot be reproduced locally. For remote collaboration across Germany, clear written communication, reproducible bug reports and well-structured test artifacts matter as much as technical depth.

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Frequently asked questions

Curious about Mozilla Firefox? Here are the answers that come up again and again.

Companies use Mozilla Firefox to access web applications, test websites, run browser extensions and support privacy-conscious browsing. It is also useful for validating whether a product works consistently across different browser engines and operating systems.

A strong Firefox specialist understands that Firefox uses the Gecko engine, while Chrome relies on Chromium and Safari uses WebKit. The differences can affect CSS behavior, JavaScript APIs, media handling, privacy features and extension compatibility, so testing across browsers remains important.

An experienced Mozilla Firefox professional often works with JavaScript, TypeScript, HTML, CSS, HTTP, accessibility and web security. Knowledge of WebExtensions, Playwright or WebDriver is valuable when the project includes add-ons or automated browser testing.

The right Firefox experience depends on the task rather than a fixed number of years. A focused compatibility check may need a specialist who can reproduce and isolate browser issues, while an extension or large test suite calls for deeper knowledge of APIs, permissions and release workflows.

Yes. Mozilla Firefox work is well suited to remote collaboration when teams share test environments, browser versions, issue records and clear acceptance criteria. For Germany-based projects, German or English communication can be agreed based on the product team, stakeholders and documentation needs.

Bring in a Firefox specialist when a defect is difficult to reproduce, a browser extension has complex permissions or a release requires broader compatibility coverage. External expertise can also help an internal team establish repeatable tests and hand over documented methods.

Ask a Mozilla Firefox freelancer to explain a concrete debugging process, including reproduction steps, developer-tool evidence, probable causes and verification. Good professionals distinguish browser behavior from application defects and communicate trade-offs instead of recommending workarounds without testing.

Working with Firefox Add-ons requires familiarity with the WebExtensions model, manifest configuration, permissions, content scripts, background logic and the Add-ons review process. Specialists should also consider privacy, performance and differences from Chromium-based extension implementations.

The average hourly rate of freelancers in Germany who have used Mozilla Firefox in their recent projects is 101 €, which corresponds to a daily rate of about 808 € based on an 8-hour working day.

Of the freelancers in Germany who have used Mozilla Firefox in their recent projects, 100% hold at least a Bachelor's degree and 31% hold at least a Master's degree.

On average, freelancers in Germany who have used Mozilla Firefox in their recent projects have 27 years of professional experience, with a single engagement typically lasting around 2.9 years.

The most common languages among freelancers in Germany who have used Mozilla Firefox in their recent projects are German (100%), English (88%), and Spanish (18%).

The most common industries among freelancers in Germany who have used Mozilla Firefox in their recent projects are Information Technology (88%), Banking and Finance (59%), and Automotive (47%).

The most common business areas among freelancers in Germany who have used Mozilla Firefox in their recent projects are Information Technology (94%), Project Management (82%), and Product Development (76%).

Main locations of FRATCH Experts, who have recently used Mozilla Firefox

Our freelancers and interim experts are at home across the DACH region — available on-site in the major business hubs or fully remote. Choose a location to discover matched specialists, local market insights and up-to-date availability.

Berlin Hamburg Munich Cologne Frankfurt Stuttgart Dusseldorf Leipzig Dortmund Essen Bremen Dresden Hanover Nuremberg

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