Browser targeting guide

Run one extension codebase across Chrome, Edge, Firefox, and custom binaries with explicit browser targeting workflows.

What to read first

Need	Read this
Choose browser targets quickly	Browsers available
Customize launch behavior	Browser flags
Configure Firefox preferences	Browser preferences
Control profile isolation	Browser profile
Run Brave or custom binaries	Running other browsers

Practical target strategy

Use named targets (chrome, edge, firefox) for daily checks.
Use comma-separated targets for release validation.
Use engine targets only when you need custom binaries.
Keep browser differences in browser-prefixed manifest fields.

Next steps

Learn manifest filtering in Cross-browser compatibility.
Configure browser-specific keys in Browser-specific manifest fields.

Video walkthrough