- Build the extension.
pnpm build
# or
yarn build
# or
npm run build
- Go to
about:addons
- Click the settings icon next to "Manage your Extensions"
- Click "Debug Add-on"
- Click "Load Temporary Add-on..."
- Select the
manifest.json
file in the build directory from the build step (<neptune_root>/extension/dist/manifest.json
) - Have fun forking!