Chrome setup

Install MMBS and start from Gmail compose.

The setup path keeps users inside the governed platform flow: stable download, Chrome install, Gmail OAuth, and the compose-adjacent MMBS panel.

Download MMBS View Release Notes
Step 1 Stable package Step 2 Load unpacked Step 3 Gmail compose
Setup steps

Adoption should feel guided, not technical.

The setup flow keeps MMBS inside Gmail while preserving Google OAuth and Gmail API permissions.

1. Download MMBS
2. Open Chrome Extensions
3. Enable Developer Mode
4. Load unpacked extension
5. Open Gmail compose
6. Click MMBS beside Send
Extension release channels

Stable for production, beta for isolated testing

The default MMBS download is the production-tested stable build. Beta is separated for future experimental work and should not be used for production Gmail campaigns.

Recommended Stable v2.0.1

MMBS Stable Channel

Production-tested Chrome MV3 package for Gmail mail merge, Gmail campaign sender workflows, preview, scheduling, attachments, and tracking.

Release date
2026-05-16
Best for
Normal Gmail mail merge campaigns.
Status
Recommended for production use.
Download MMBS View Stable Release
Testing only Beta testing

MMBS Beta Channel

Separate testing package reserved for experimental attachment, auth, queue, popup, and MV3 lifecycle work before any stable promotion.

Release date
2026-05-16
Best for
Intentional testing only.
Status
Testing-only. Stable remains the public production ZIP download.
Testing only View Beta Release

Release notes

  • Stable is the only recommended channel for normal users and production Gmail outreach.
  • Beta is isolated for future experiments and must be validated before stable promotion.
  • Readable release pages explain changes without exposing internal file structure.