Extensions - Kernel

Manage browser extensions for use with Kernel browsers.

Extension Management

`kernel extensions list`

List all extensions in your organization. Output includes:

Extension ID
Name (if assigned)
Created date
Size in bytes
Last used date

Example:

kernel extensions list

`kernel extensions upload <directory>`

Upload an unpacked browser extension directory or zip file.

Flag	Description
`--name <name>`	Optional unique name for the extension. Must be unique within your project.

Example:

# Upload with auto-generated ID
kernel extensions upload ./my-extension

# Upload with custom name
kernel extensions upload ./my-extension --name my-custom-extension

Extensions requiring enterprise policies must include update.xml and .crx files. See Extensions requiring enterprise policies for details.

`kernel extensions download <id-or-name>`

Download an extension archive by ID or name.

Flag	Description
`--to <path>`	Output path for the downloaded zip file.

Example:

# Download to current directory
kernel extensions download my-extension

# Download to specific path
kernel extensions download my-extension --to ./downloads/extension.zip

`kernel extensions delete <id-or-name>`

Delete an extension by ID or name.

Flag	Description
`--yes`, `-y`	Skip confirmation prompt.

Example:

# Delete with confirmation
kernel extensions delete my-extension

# Delete without confirmation
kernel extensions delete my-extension --yes

`kernel extensions download-web-store <url>`

Download and unpack an extension directly from the Chrome Web Store.

Flag	Description
`--to <path>`	Output directory for the unpacked extension.
`--os <platform>`	Target OS: `mac`, `win`, or `linux` (default: `linux`).

Example:

kernel extensions download-web-store \
  https://chromewebstore.google.com/detail/extension-id \
  --to ./my-extension

After downloading, you can upload the extension to Kernel:

kernel extensions upload ./my-extension --name my-extension

`kernel extensions build-web-bot-auth`

Build Cloudflare’s Web Bot Auth browser extension for signing HTTP requests with RFC 9421 signatures.

Flag	Description
`--to <dir>`	Output directory for the built extension (required).
`--key <path>`	Path to JWK file with Ed25519 signing key (defaults to RFC9421 test key).
`--upload <name>`	Upload the extension to Kernel with specified name (e.g., —upload my-web-bot-auth).

Examples:

# Build with default test key
kernel extensions build-web-bot-auth --to ./web-bot-auth-ext

# Build with custom key
kernel extensions build-web-bot-auth --to ./web-bot-auth-ext --key ./my-key.jwk

# Build with custom name and upload
kernel extensions build-web-bot-auth --to ./web-bot-auth-ext --upload my-web-bot-auth

This command requires Node.js and npm to be installed on your system.

​Extension Management

​kernel extensions list

​kernel extensions upload <directory>

​kernel extensions download <id-or-name>

​kernel extensions delete <id-or-name>

​kernel extensions download-web-store <url>

​kernel extensions build-web-bot-auth

Extension Management

`kernel extensions list`

`kernel extensions upload <directory>`

`kernel extensions download <id-or-name>`

`kernel extensions delete <id-or-name>`

`kernel extensions download-web-store <url>`

`kernel extensions build-web-bot-auth`