Hey there, sorry to hear you're hitting that frustrating error -10810 when trying to launch Safari, either normally or via the open -a Safari command. Let's break down some practical fixes and workarounds to get you back up and running:

1. Reset Launch Services #

Error -10810 often stems from messed-up launch service registrations, which macOS uses to find and open apps. Run this command in Terminal to reset them:

/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister -kill -r -domain local -domain system -domain user

Once it finishes, restart your Mac and try opening Safari again—both normally and via the command line.

2. Wipe Corrupted Safari Preferences #

Corrupted preference files are a common culprit for launch issues. Here's how to clear them:

• First, make sure Safari is completely closed. If it's running in the background, run killall Safari in Terminal to force-quit it.
• Open Finder, press Cmd+Shift+G, and paste ~/Library/Preferences/ into the box to jump to the preferences folder.
• Find and delete these two files:
  • com.apple.Safari.plist
  • com.apple.Safari.Extensions.plist
• Restart your Mac, then launch Safari. Note: This will reset your custom settings like homepage or extension preferences, but it's a quick fix for many launch problems.

3. Reinstall macOS (to fix corrupted Safari files) #

Since Safari is a system app on modern macOS versions (10.15 Catalina and later), you can't just delete and re-download it from the App Store. Instead, use macOS Recovery to reinstall the system (this won't erase your personal data):

• Restart your Mac and hold Cmd+R until you see the Apple logo.
• In Recovery Mode, select "Reinstall macOS" and follow the on-screen prompts. This will replace any corrupted system files, including Safari.

4. Update Your macOS #

Outdated system software can have bugs that cause launch errors like this. Head to System Settings > General > Software Update and install any available updates. Even a small patch might resolve the launch service glitch.

5. Quick Workaround: Launch via Full Path #

If you need to use Safari right away while troubleshooting, try launching it using its full file path in Terminal instead:

open /Applications/Safari.app

This skips some of the launch service lookup steps that might be failing with the open -a Safari command.

内容的提问来源于stack exchange，提问作者eclipseIzHere