Browser Preview & Execution Insights
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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.

The Preview panel shows a live view of your test execution.
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 are available in the Debug Console tabs.
Read more in Debugging Tools.
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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