If macOS says it can't open it because it's from an "unidentified developer," go to System Settings > Privacy & Security and click "Open Anyway."
To help you find the exact version you need, could you tell me: old chrome versions mac
Old browsers are more vulnerable to malicious ads. Install a trusted extension immediately upon opening the old version. Best Old Chrome Versions for Legacy macOS macOS Version Max Supported Chrome Chrome 60 - 80 Extremely vulnerable; avoid internet usage. macOS 10.13 - 10.14 Chrome 90 - 100+ Last working versions often found at 90-95. macOS 10.15 (Catalina) Chrome 110-115 Often requires specific older DMG installers. Risks of Using Old Chrome Versions If macOS says it can't open it because
If you just need the last version of Chrome that worked on an old OS (e.g., the last version for Mojave), you may need to search specifically for "[Version Number] Chrome Mac DMG." Crucial Steps: Installing Old Chrome Safely macOS 10