v0.17.0

vercel-labs/agent-browserv0.17.0Mar 8, 2026by github-actions[bot]

AI Summary

Adds support for the Lightpanda browser engine and a dialog dismiss command, alongside improvements in error reporting, Chrome extensions, and cookie persistence.

Key Highlights

Lightpanda browser engine support
Dialog dismiss command
Daemon startup error reporting improvements

New Features

Lightpanda browser engine support
Dialog dismiss command

Full Release Notes

### Minor Changes

-   94521e7: ### New Features

    -   **Lightpanda browser engine support** - Added `--engine <name>` flag to select the browser engine (`chrome` by default, or `lightpanda`), implying `--native` mode. Configurable via `AGENT_BROWSER_ENGINE` environment variable (#646)
    -   **Dialog dismiss command** - Added support for `dismiss` subcommand in dialog command parsing (#605)

    ### Improvements

    -   **Daemon startup error reporting** - Daemon startup errors are now surfaced directly instead of showing an opaque timeout message (#614)
    -   **CDP port discovery** - Replaced broken hand-rolled HTTP client with `reqwest` for more reliable CDP port discovery (#619)
    -   **Chrome extensions** - Extensions now load correctly by forcing headed mode when extensions are present (#652)
    -   **Google Translate bar suppression** - Suppressed the Google Translate bar in native headless mode to avoid interference (#649)
    -   **Auth cookie persistence** - Auth cookies are now persisted on browser close in native mode (#650)

    ### Bug Fixes

    -   Fixed native auth login failing due to incompatible encryption format (#648)

    ### Documentation

    -   Improved snapshot usage guidance and added reproducibility check (#630)
    -   Added `--engine` flag to the README options table

    ### Performance

    -   Added benchmarks to the CLI codebase (#637)