Practice mode · free · unlimited · not certifiable

Extensions and Automation

Unscored tasks with hints and instant feedback. Practice results never become credentials.

Short lesson

Browser control · 8 min

Ctrl/Cmd+Shift+T reopen tab, tab groups for contexts, DevTools: Elements to inspect, Network (Fetch/XHR) to find API calls, Application for storage and cookies.

L1Knowledge checkmcq

Before installing an extension, what should you check first?

L3Audit extensionsbrowser

Review installed extensions. Remove any extension that requests access to all sites without a good reason or is not from a trusted publisher. Keep the password manager.

L3Knowledge checkmcq

What is a bookmarklet?