You can use HTML Macro for that currently this is only solution as Atlassian guys closed this issue as won't fix.
<a href="https://www.google.com" target="_blank">Google</a>
Here adding value of 'target' as '_blank' will open new tab/window.
Forgot to add if you are site admin and want this behavior for all external links read this page https://confluence.atlassian.com/confkb/how-to-force-links-to-open-in-a-new-window-213518072.html
As a confluence user, I appear to not have access to the HTML Macro.
However, there is also the option of using the 'Button Hyperlink' macro. This macro provides an option to open the hyperlink in a new window. Using button style 'subtle' renders a button which more or less has the look of a regular link. But it's still a button after all. As many others, I don't understand why this functionality can't be provided for a regular link.
Thanks everyone for answering last week’s question. The winner of the random drawing from those who commented is: @LarryBrock I’ll contact you separately with your prize details. This wee...
Connect with like-minded Atlassian users at free events near you!Find an event
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no Community Events near you at the moment.Host an event
You're one step closer to meeting fellow Atlassian users at your local event. Learn more about Community Events