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I've just upgraded my aquamacs installation and a bunch of packages, and now emacs is opening every new buffer in a new (gui) window (aka emacs frame). I don't like this. I want to have every buffer open in a new tab within the same frame.

I already have this tabbar and window config, but it's not doing the trick:

(custom-set-variables
 '(pop-up-frames nil)
 '(pop-up-windows nil))

(use-package tabbar
  :ensure t
  :config
  (tabbar-mode 't))

How do I keep my buffers all in one frame?

I'm using version: Aquamacs 3.5 GNU Emacs 25.3.50.1 (x86_64-apple-darwin16.7.0, NS appkit-1504.83 Version 10.12.6)

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  • Perhaps the value of pop-up-frames is being set to a non-nil value after your custom-set-variables statement is processed during startup. What is the value of pop-up-frames after startup finishes? Type C-h v aka M-x describe-variable
    – lawlist
    Jan 7, 2020 at 17:30
  • The distinct feature of Aquamacs has always been (as far as I can remember, that is) a built-in tabbar. github.com/aquamacs-emacs/aquamacs-emacs/tree/aquamacs3/… As such, you probably should consider removing the tabbar statement in your user-config when using Aquamacs.
    – lawlist
    Jan 7, 2020 at 17:32

1 Answer 1

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The customization I want is:

(custom-set-variables
 '(one-buffer-one-frame-mode nil nil (aquamacs-frame-setup)))

Instead of: (one-buffer-one-frame-mode t nil (aquamacs-frame-setup)))

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