puppeteer-v25.12.0 puppeteer-core-v25.12.0
medium risk
microsoft/markitdownSep 23, 2026 → Sep 23, 20260 days between releases
What's New
Adds Firefox 156.0 support and fixes automation bugs in core package.
New Features
- Firefox 156.0 support.
- Launcher fix for cleaning temporary profiles.
Improvements
- Temporary profiles are now cleaned up on process exit.
- Shadow host text node handling in SerializedAXNode is improved.
Bug Fixes
- Mouse button release is handled correctly after failed drag/drop operations.
- Launcher cleaning temporary profiles on process exit.
- Shadow host text node handling in SerializedAXNode.
Upgrade Notes
No configuration changes are required, but users should be aware that temporary profiles are now cleaned up automatically on exit.
The Two Releases
puppeteer-v25.12.0
puppeteer: v25.12.0
Sep 23, 2026· 29 days ago
The main Puppeteer package update including browser engine upgrades and dependency bumps for browsers and core.
Full release notespuppeteer-core-v25.12.0
puppeteer-core: v25.12.0
Sep 23, 2026· 29 days ago
A major version bump for Puppeteer Core that updates browser engines and fixes several automation bugs related to profiles and mouse interactions.
Full release notes