Coherence — X 4.2.1

: Improved support for importing extensions and profiles from multiple Chromium browsers (beyond just standard Chrome), resolving common errors when Chrome was not the primary system browser. Key Features and Fixes Feature Area Specific Improvement App Signature

While Coherence X 4.2.1 addressed stability for macOS versions like Big Sur and Monterey, it has since been superseded by (released September 2025). Coherence X 4.2.1

Released in late 2021, (including its minor point releases like 4.2.1) represented a major performance-focused update for BZG's site-specific browser (SSB) tool. This version solidified the software's transition into a high-performance utility for turning websites into standalone macOS applications powered by Chromium-based backends. Core Update Objectives : Improved support for importing extensions and profiles

Enhanced "Incognito" app modes, allowing for isolated workspaces that do not share cookies or history with the main browser. Legacy and Evolution This version solidified the software's transition into a

: Users of the 4.x series are often eligible for discounted upgrades to X5, which introduces a redesigned interface for macOS 26 ("Tahoe") and support for Ungoogled Chromium .