Board Thread:General Discussion/@comment-2175727-20191019072147/@comment-4018164-20191019093704

From your description it looks like you're only willing to affect external links, so:
 * If you want this to affect your account only&#58;

You could add to your /global.js something like this (or your /common.js if you want this to only be applied in specific wiki(s)):
 * If you want this to affect everyone in an entire wiki &#58;

I'm not sure if the use of JavaScript for this behavior matches the customization policy, as i haven't made any public wiki scripts in a few years. If you are an admin there, you could ask a Wikia staff member to enable such behavior.

However, note that if a reader wants to open a link in a new tab, they could do just that whether they are in pc or mobile. Maybe it's just my opinion, but sites don't let me open a link the way i want really grind my gears.