Comprehensive Guide to Browser Compatibility Testing for Internal Sites

Comprehensive Guide to Browser Compatibility Testing for Internal Sites

3 July 2024 Stephan Petzl Leave a comment QA

Ensuring that your web applications are compatible across various browsers is a critical aspect of quality assurance. This guide will help you navigate the tools and techniques available for testing browser compatibility, particularly for internal and private sites.

Selenium Grid

Selenium Grid is a powerful tool that allows you to execute multiple tests in parallel across different browsers, including Chrome, Safari, Internet Explorer, Firefox, and Opera. This can significantly speed up your testing process and ensure comprehensive coverage. For a detailed step-by-step guide on setting up Selenium Grid, refer to this walk-through.


Watir-Webdriver is another robust tool for functional testing across popular browsers. It’s particularly useful for automating browser actions and can help identify issues that affect user interaction.

Human Oversight: A Critical Component

While automated tools are invaluable, human oversight remains crucial. Many cross-browser issues are related to rendering and layout, which can be challenging to automate effectively. For example, overlapping buttons or misaligned elements might not affect the functionality but can degrade the user experience significantly. Therefore, incorporating manual testing alongside automated tests can help catch these issues.

Virtual Machines and Multi-Browser Testing

Setting up a test rig with virtual machines can also be a practical solution. Using a MacBook Pro, you can test Safari, Firefox, and Opera side-by-side. Additionally, virtual machines with different versions of browsers can help you create a comprehensive test environment. Tools like IETester and MultipleIEs can facilitate testing across various versions of Internet Explorer.


Saucelabs provides a cloud-based solution that can save time by eliminating the need to set up multiple test environments. It supports a wide range of browsers and offers free accounts for smaller projects, making it a cost-effective option.

Advanced Techniques for Identifying Layout Issues

For detecting common layout issues, tools like Fighting Layout Bugs can be very effective. This Java-based tool can identify issues such as invalid image URLs, overlapping text, and low contrast text. Additionally, implementing a bitmap comparison tool can help by comparing new screenshots against stored oracles, ensuring visual consistency.


Choosing the right combination of tools and techniques is essential for effective browser compatibility testing. While automated tools like Selenium Grid and Watir-Webdriver provide robust functional testing capabilities, incorporating manual testing and using advanced layout detection tools can help ensure a seamless user experience across all browsers.

For those looking to simplify their testing processes further, consider using Repeato, a no-code test automation tool for iOS and Android. Repeato leverages computer vision and AI to create, run, and maintain automated tests quickly and efficiently. Its ease of setup and use makes it an excellent choice for quality assurance teams aiming to streamline their testing workflows.

For more information on advanced testing techniques and tools, visit our blog.

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