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LaunchServices

Last Week on My Mac: Finder lost

How a security feature trying to block malicious documents has rendered a Finder feature useless, causing users and developers problems.

May 5, 2019 Macs, Technology

Documents from an unidentified developer: quarantine misbehaviour in the log

Two sets of log excerpts demonstrate how macOS can prevent a user from opening a document, then mislead them into thinking it’s the app at fault.

May 4, 2019 Macs, Technology

Serious flaw in macOS: quarantine can stop you from opening documents

T T Read More

You double-click to open a document, and see a security alert telling you it’s from an unidentified developer and your security settings prohibit opening. What the hell?

May 3, 2019 Macs, Technology

lsregister: a valuable undocumented command for LaunchServices

Repairing LaunchServices database, rebuilding it from scratch, and controlling individual app entries – all using this undocumented command.

March 25, 2019 Macs, Technology

When the wrong copy/version of the right app opens a document

Sometimes macOS decides you want to open documents using the wrong version of the right app. Here’s how to fix that.

March 21, 2019 Macs, Technology

How LaunchServices builds the Open Recent menu, and outsmarts Aliases

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How can the Open Recent menu offer to open a document that no longer exists when the volume it was on is no longer mounted?

March 18, 2019 Macs, Technology

Why can’t I open that document? Troubleshooting LaunchServices

You try to open a document – in this case, one of Firefox’s bookmarks – and nothing happens. What could be wrong? It turns out it’s a bug, of course. But where?

January 28, 2019 Macs, Technology

Launching apps in Mojave: how it has changed

Mojave checks newly-installed apps which are not from the App Store more thoroughly, and handles notarized apps differently too. Here are some details.

October 3, 2018 Macs, Technology

Open a document: how it works, and where it can go wrong, 3: Launch

Last of 3 articles explains how macOS selects and starts the app with which to open a document which you double-clicked/tapped.

July 12, 2018 Macs, Technology

Open a document: how it works, and where it can go wrong, 2: Security check

Second of 3 articles explains how macOS puts documents through its security checks before opening them.

July 11, 2018 Macs, Technology

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