On MacOS double-clicked links always open with focus in new tab. Besides that, it should be a preference for the default value to change the opening behaviour (back or foreground). An addon to help usability and being quicker should not require mouse AND keyboard usage at the same time.

Does exactly what it says. For some reason, it opens links in new tabs whether or not I use the ctrl modifier. This isn't a problem, since that's what I prefer, but worth mentioning. I actually didn't think it would work for me since I expected it to open links in the same tab, and there's no option to swap the behavior (i.e., open in new tab without modifier and in current tab with modifer), though there should be. It does switch to the tab right away, and I actually prefer when I open links in a new tab that they open in background tabs. Using the ctrl modifier makes it open in a background tab. I suspect this variation is caused by another add-on, perhaps TabMixPlus, but it appears that an option to swap the behavior would still be useful.

One thing I would really like to see (and, combined with an option to swap the modifier behavior, it would make this a 5-star add-on) is the ability to set it to ignore the clicking (not open the link) if I double-click and drag, so I can select/highlight a link without opening it. If that's not possible, perhaps an option to make it open the link with a triple-click.

Edit in response to dev's reply: I'm not suggesting the default behavior be changed to swap the function of the modifier key, just that an option be given so the user can swap it if they choose. Thanks for the reply and for your contributions!

-The previous firefox review is my mistake.

Double-click on the plain text to open the link to the right of the current tab.

I think it will be really useful when it improves.

Thanks for updating it. I tested and it works most of the times. Little more to be able to cover all the cases and it'll be 5* for sure. Thanks again.