MacOS – open files from unknown “developers” and still forbid applications from unknown developers

gatekeepermacos

I'm trying to open a .txt file in Sublime Text 3, but macOS won't let me because it says it's from an unknown "developer". I can totally understand this warning when it comes to applications, but I don't think it's warranted when it's just a text file.

Can I somehow make it possible to open text files from the internet without making it possible to run applications downloaded from untrusted sources?

Best Answer

This method lets you allow a single file to be opened.
1. Find the file in finder.
2. Press ctrl.
3. Click on the file.
4. Click "Open".
5. Click OK in the Prompt.

Be aware this will disable the security checks of the file, maybe the file contains malware

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MacOS – How to disable Gatekeeper alerts on opening text files synced with Dropbox

man spctl

That is good to know, although you can just do:

xattr -d YourFile.txt

This removes the quarantine attribute on files.

With spctl you can add WriteRoom to list of apps that can run. From

man spctl

EXAMPLES
 To check whether Mail.app is allowed to run on the local system:
       spctl -a /Applications/Mail.app

 To allow Frobozz.app to run on the local system:
       spctl --add --label "My Stuff" /Applications/Mail.app

 To forbid all code obtained from the Mac App Store from running:
       spctl --disable --label "Mac App Store"

MacOS – Opening text files from finder: Unable to find application

Try setting the default app to open .txt files using Get Info

Left click a text file
Choose "Get Info"
Under "Open with:" choose the app you want to use as the default
Click "Change All..."
Click "Continue"

Best Answer

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MacOS – How to disable Gatekeeper alerts on opening text files synced with Dropbox

MacOS – Opening text files from finder: Unable to find application

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