Firefox Browser Online Testing

Experience real Firefox testing on Latest Firefox Desktop and Mobile Browsers. Say goodbye to labs, access 3000+ remote browsers instantly!

Trusted by 2M+ users globally

Selenium Testing

2 Million+






Test On Different Firefox Browsers Online


Test Native, Hybrid, and Web Apps

Test your native mobile applications using LambdaTest’s online real device cloud, reduce costs by eliminating your in-house device lab.


In-built DevTools

Use faster DevTools to debug webapps across multiple devices with different screen sizes.


Network Throttling

Ensure seamless user experience by checking your mobile view website's responsiveness on various network profiles.


24/7 Support

Got questions? Throw them to our 24/7 in-app customer chat support, or email us on,


Geolocation Testing

Test your website or mobile app from different geoIPs to make sure your users get the perfect experience across all locations.


120+ Integrations

Integrate effortlessly with your testing stack through a wide array of 120+ out-of-the-box integrations.

Highest browser coverage

Real Time Testing on Firefox

Seamlessly validate your web app or website across all Firefox versions, from Firefox 4 to the latest and even beta releases, with our live interactive testing environment. Achieve cross-browser compatibility effortlessly.
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Real-time Cross Browser Testing
Test on real browsers

Accurate Testing

Selenium Cross Browser Testing Grid with Firefox

Run Selenium tests on a scalable, and secure cloud-based Selenium Grid of 3000+ real browsers including mozilla firefox browsers online for different macOS and Windows machines.
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Test Privately

Test Locally Hosted Web Apps on Latest Firefox Browsers

You can also test your web applications behind the firewall or staging server for cross browser compatibility on various Firefox Browser versions. By connecting LambdaTunnel you can make sure that your web app will perform seamlessly on all Firefox browser versions across all devices and OSes after getting live.
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Perform Local Cross Browser Testing On IE Browsers Online

Test on Private Real Device Cloud

Dedicated iOS and Android devices, exclusively for your team with 24x7 availability. Highly secure devices behind your own firewall that can be completely customized as per your own workflow.
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Automated Screenshot Testing On Mozilla Firefox

Our Automated Screenshot Generation feature helps you rapidly test the layout of your web-app on different versions of Mozilla Firefox browser by just a click.
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Automated Screenshot Testing

Customer Success Is Our Success


By being able to run our Selenium scripts on the legacy and latest browsers on LambdaTest helped us save significant time in test execution with zero hassle to maintain the infra.

Anish Ohri

Head of Testing and Performance Engineering


Increased Browser Coverage

Powerful Cloud Testing Platform to Accelerate Your Go-To-Market

Secure, Reliable, and High Performance Test Execution Cloud, Built For Scale and Optimized for Testing on Safari Browsers.

Perform automated browser tests on a scalable, secure, and reliable automation cloud. Run JavaScript or Selenium tests at scale on 3000+ desktop and mobile browsers.

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Automated Testing

Wall of fame

LambdaTest is #1 choice for SMBs and Enterprises across the globe.

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Elevate Your Firefox Browser Testing Experience

Experience firsthand how our platform can empower you to reach your Firefox Browser Testing objectives and bring innovation in your testing procedures. Try LambdaTest today.