Extensions run in the same main thread as Brackets core. Set breakpoints:

A few debugging helpers have tried to override Ctrl+Shift+I to open a project-specific inspector instead of the editor’s own DevTools. These are rare and often break, but the idea is: Ctrl+Shift+I → opens an iframe with the live preview’s DOM inspector, saving you from switching contexts.

| Context | Behavior of Ctrl+Shift+I | | :--- | :--- | | | Launches Live Preview in Chrome. | | Extension Development | Opens Brackets Developer Tools (to debug the editor itself). | | Extension Conflict | Executes whatever command the installed extension bound to that key. | | MacOS Equivalent | Cmd+Option+I |

If you're interested in learning more about Ctrl+Shift+I and Brackets extensions, here are a few additional resources to check out: