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Dennis Sellers

Dennis Sellers
508 posts
Contributing Author
Dennis has over 40 years of journalism experience and has written hundreds of articles. For the past 20-plus years, he's been an online journalist, covering mainly Apple Inc. He's written for MacCentral, MacWorld, MacMinute, Macsimum News, Apple Daily Report, and is now contributing editor at Apple World Today.
Transparent Mac screenshot icon with a portion of a MacBook Pro Touch Bar

How to Create Touch Bar Screenshots on a MacBook Pro

Apple’s controversial Touch Bar on some Mac laptops is actually a second, mini-display. Which means you can take a screenshot of whatever it’s displaying. Some folks think the Touch Bar is a waste of space and don't like that it adds to the ticket price of the Mac laptop. However, I find it fairly useful.

Sound speaker icon on top of a safari icon

How to Mute and Unmute Audio in Safari Tabs

If you're having problems with sound on some web pages when using macOS’s Safari (or simply don’t want to hear audio on a particular web page) the web browser lets you mute audio in any open tabs. Here's how...

PDF document icon on Mac

Quick Tip: How to Sign a PDF in macOS Catalina Mail

Like me, you've probably had a PDF emailed to you that you need to sign. It’s a pain to print it, sign it, then scan it in order to send it back. Thankfully, there’s a better way. You can actually sign it right in the Mac Mail app.

Mac night Shift Logo with text saying "Night Shift"

How to Use Night Shift in macOS Catalina

macOS’s Night Shift is a feature brought over from iOS starting with macOS High Sierra. It helps you reduce the amount of blue light you're exposed to during the evening by shifting the display of your Mac to a more...

Collections of favicon images

How to Enable and Disable Favicons in macOS Catalina

With macOS Mojave, Apple has added support for favicons (short for "favorite icons”) in Safari tabs. Favicons are those little icons that let you quickly identify which of your open tabs is which website. A favicon is a file containing...

Screenshot of Mac Desktop with the word "Stacks"

How to Use Desktop Stacks in macOS Leopard Through Catalina

"Stacks" is a feature introduced in macOS Leopard (although the official name at the time was Mac OS X Leopard). It was available in the Dock, but nowhere else. The feature "Stacked" files into a small organized folder on the...

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