For the complete documentation index, see llms.txt. This page is also available as Markdown.

Browser Preview & Execution Insights

TestFirst provides a built-in browser preview with execution insights to help you understand how your test runs.

You can visually track execution, inspect logs, and analyze how each step behaves, all within the Editor.

Browser Preview

The Preview panel shows a live view of your test execution.

Key Characteristics

  • Always enabled during test runs

  • Shows real-time UI interactions

  • Runs in headless mode with visual simulation

  • Does not open an external browser

Execution Insights

Execution insights are available in the Debug Console tabs.

Read more in Debugging Tools.

Screenshots and Visual Validation

  • Screenshots are captured for every step in browser tests

  • Each screenshot highlights the exact interaction area

  • Click the screenshot link in each step of the Execution Log to open the annotated screenshot

💡 Use screenshots together with logs to identify issues faster.

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