Glenn FleishmanSenior Contributor, Macworld

Glenn Fleishman is the author of dozens of books, including Take Control of Wi-Fi Networking and Security (updated for iOS/iPadOS 13 and Catalina), a detailed guide to wireless networking and security. He's a senior contributor to Macworld, where he writes Mac 911.

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Safari: macOS browser now autosubmits logins. Here’s how to disable it

Apple described this Safari change in 10.14.4’s release notes as “Streamlines website login when filling credentials with Password AutoFill.” If you don’t want this to happen, here’s what you can do.

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How to use iCloud to help manage Photos libraries too large for an internal Mac drive

A reader offers a suggestion that can provide the best of both worlds.

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The odd case of ‘I D.o.n.t.’ autocorrection in iOS

A mystery plagues two iOS users, but others must be affected?

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How to better protect yourself from robocalls on your iPhone

The solution requires a lot more technology on the backend, but you can make inroads.

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Why your Photos and iPhoto libraries take more space on a Mac’s external drive

The “hard link” approach Apple uses to reduce storage doesn’t survive a copy operation.

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Can’t select a drive to use with Time Machine? It might need reformatting

Time Machine only works with HFS+ drives.

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How to cope with a Photos library too big to fit on an internal Mac drive

Apple doesn’t offer the perfect mix of choices with iCloud Photos, and the right answer isn’t obvious.

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How to conserve mobile data by turning off iTunes and other downloads in iOS

These settings aren’t hidden, but they can pack a wallop.

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How to add other people’s fingerprints to Touch ID

It’s a great way to allow casual use within a family.

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Can you opt out a Mac for iCloud Photos? Yes, but click carefully

If you have multiple Macs, you may not want them all to sync with iCloud Photos.

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How to change your music files’ metadata information using iTunes for Mac

Be warned: You can fix errors or set information, but it’s a one-way street. Here’s how to prepare.

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What happens when you delete an album in the Mac’s Photos app?

Here's an explanation on how to make sure you've actually deleted a photo in Apple's Photos app for Mac.

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Is your router’s Wi-Fi working but ethernet has gone bad? Here’s how to check

Ethernet is often the literal weakest link in a Wi-Fi network.

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How to fix a grayed-out Safari home page preference

The Safari option for picking your home page can be hijacked.