If you are determined to install Chrome on Catalina, here are the methods you can use, starting with the safest and most official source.
Compatibility & system requirements
This is arguably the strongest and most actively supported alternative. Unlike Chrome, Firefox has not yet abandoned macOS Catalina. As of mid-2026, the latest version of Firefox continues to run fully on macOS 10.15, with Catalina being its minimum supported system requirement for versions 116 and above. For Catalina users, this is a secure, modern, and highly recommended choice.
: This version is "frozen," meaning it will not receive security updates or bug fixes . This makes your browsing more vulnerable to modern web threats over time.
Because Google no longer pushes security patches to Chrome 116, the browser will constantly remind you that it is frozen in time. While annoying, the browser will remain completely usable for standard web browsing, video streaming, and daily tasks. Security Risks of Running an Older Browser
However, you can still download and use the last compatible version:
This guide covers how to get the correct version, installation steps, and important security considerations.
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Do not download Chrome from third-party "mirror" sites. Only download directly from Google to avoid malware or bloatware.
By following the manual download method and bypassing Gatekeeper correctly, you will have a fully functional, secure browsing experience on your legacy Mac.
Chrome slows down your Mac running 10.15.7. Solution: Catalina is resource-heavy. You need the 64-bit optimized version.
27 Feb 2025 — The current version of Google Chrome requires Big Sur or later. You cannot install and run it on Catalina. Apple Support Community Link to download older Chrome 128 for MacOS 10.15.7
Over time, modern websites update their code. Older browsers may eventually fail to load certain sites properly, including banking portals or advanced web apps.
Google provides a direct way to download the last compatible version for older operating systems. This is the most secure method, as it comes directly from Google's servers.