Where can I handle how the control + left-click menu displays entries?

This is how it looks when it is displayed the way I want, i.e. with no fancy sorting by file type:

And this is how it looks when it tries to sort files for me...

It randomly toggles after a number of files are opened...

  • Have a look at customizing the variables mouse-buffer-menu-mode-mult and mouse-buffer-menu-mode-groups -- to see the doc-string, type M-x describe-variable
    – lawlist
    Jun 5, 2017 at 14:26
  • interesting comment lawlist. Does this mean that if I delete (or comment out) entries from that menu I won't get bothered by the sorting any more? This can be a nice workaround to my problem.:) Jun 5, 2017 at 14:33
  • The doc-string for the first variable suggests setting the value to a high number. Setting the latter variable to nil may case an error because there is a dolist that iterates through it.
    – lawlist
    Jun 5, 2017 at 14:49
  • if you post the fist comment as an answer I will accept it as a solution to my problem.:) Thanks! Jun 5, 2017 at 15:03

1 Answer 1


The mouse buffer menu has a few customizable variables, a couple of which are mouse-buffer-menu-mode-mult and mouse-buffer-menu-mode-groups. The default value for mouse-buffer-menu-mode-mult is 4, so setting it to a higher value seems appropriate in this case -- e.g., a number high enough that grouping will not occur.

To read the doc-string for a variable, type M-x describe-variable.

To customize the variable, type M-x customize-variable.

The seemingly randomness of grouping (sometimes yes, sometimes no) indicates a bug. Someone who is motivated may wish to submit a bug report in relation thereto.

  • lawlist: "Someone who is motivated may wish to submit a bug report in relation thereto." how to do this? Jun 5, 2017 at 15:27
  • Emacs has the built-in email address and it gathers information about your setup when you type M-x report-emacs-bug. Reporting a bug is an investment of time, because the Emacs team may respond by asking for clarification how to reproduce the behavior. And, the Emacs team may ask for the individual to test proposed solutions. Depending on the complexity of the bug, it could potentially be a lot of time invested. However, sometimes it is simple. I generally include a recipe starting from no user-configuration (what we call emacs -q) and state what I expected and what happened.
    – lawlist
    Jun 5, 2017 at 15:30
  • You are an emacs pro lawlist!:) OK, I think I don't have the luxury of investing such time to report this minor hiccup. Your proposed solution is good enough for me. Jun 5, 2017 at 15:50

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