This works really well.

The only two things that I'm missing are:

1. that the background tabs aren't created as child tabs of the active one, they're always just new tabs so they don't always end up where I'd expect them to be. I think this should be implementable.

2. that the menu item can't be at the top of the context menu (but sadly that's probably a limitation of Mozilla's post-quantum APIs).

Dev did Mozilla's work.

I've used this add-on almost daily for years on different brands of laptops. It has never given me a problem. I'm here to add it to my new laptop.

Does what it promises to do and much appreciated. Thanks!

Works perfectly, unlike some other extensions. Too stupid-simple to fail.
(It takes real brilliance to write something so simple.)
@thelastredshirt: Put up a donation button somewhere, huh?

is there an option to Toggle this in about:config ?

i can't find one.

*Response to Dev*:

is there a Preference in about:config to Toggle to gain this functionality without an extension?

in your Response to the first review by "Dr.St.Lui" you replied "Conex is not actually creating a new menu item up top, but enabling one that is not usually shown." - So i was wondering if there was a about:config Preference to toggle this functionality without the need for an extension since i have so many extensions already, i'm trying to avoid anymore RAM consumption if possible.

As for you extension, it works flawlessly for me, only problem for me is that i'm too used to middle clicking my mouse and if i right click i sometimes forget it's at the bottom but that's not your fault as you need the Firefox APi, but it's still a 5 Star extension to me. Thank You for it.

*Response to Dev 2*:

Response Please ?

Also, is there any chance this can be implemented to work with Bookmarks or Bookmark Folders? Or is this an APi issue that Mozilla needs to implement ?

*Response to Dev 3*:

i guess i'll never get answers.....

Simple and awesome.

Since the loss of Tab Mix Plus due to the Firefox 57+ update, I'm so happy to have this functionality back, even if it is further down the menu than where I would want it.

Wish the open background option could settle under the open in new tab option, like the Conex extension did

Thanks for the reply and help me find my misunderstanding about Firefox Quantum. Actually this extension actually worths 5stars since there is no other extension (the feedly_open_background_tab extension didn't work on my broswer).

By the way, changing the icon might be more attracting