Which tabs in DevTools have you worked with most often?

The most commonly used tabs in DevTools are:

• Elements — for viewing and modifying the DOM structure of the page, debugging layout and styles.
• Console — for outputting logs, executing JavaScript code, debugging scripts.
• Network — for analyzing network requests, checking resource loading, response times, and statuses.
• Sources — for viewing and debugging JavaScript source code, setting breakpoints.
• Application — for working with local storage, cookies, IndexedDB.

Depending on the task, QA engineers most often use the Elements, Console, and Network tabs to verify display correctness, logs, and network interactions.