I just downloaded the Magnet app. I have Chrome and the mail app open. When I drag chrome to the side, it snaps to half the screen size, as it should. But, when I try the Mail app, it snaps to slighty over half the screen width and displays the message "Can't be more narrow". This also happened for Spotify. I am running macOS Monterey. Why is it doing this?

  • I have a similar problem... but not going half the screen size, my problem is trying to snap a Chrome or Firefox window to FULL size and I get that error message. Of course, I can manually drag the window to the full size by hand if I want, but Magnet won't do it. Safari works and most apps seem fine... but Chrome and Firefox for sure have issues. I suppose this isn't an "answer", but more of a 'me too' problem.
    – Drew
    Commented Jan 7, 2022 at 20:05

3 Answers 3


According to one of the Q&A's on Magnet's web site:

Some apps don’t resize to a half screen and remain wider. What’s wrong?

Certain apps require a minimal width of their window. In some cases the width can exceed half of your screen, particularly on small screens like Macbooks'.


Found a Reddit thread that talked about this and someone proposed a better option called Rectangle: https://rectangleapp.com/

Works pretty awesome -- AND with Chrome! I just uninstalled Magnet and started using Rectangle.

Here's the original post: https://www.reddit.com/r/mac/comments/rx2zfn/bettersnaptool_and_magnet_not_working_for_google/

  • Awesome! This is exactly like magnet, and it's free + open source. Window sizing is working again +1 Commented May 16, 2022 at 12:07

I had the same issue but then I used the keyboard shortcuts and it worked.

You can find the short in the drop-down menu.

Hope this helps.

  • As it’s currently written, your answer is unclear. Please edit to add additional details that will help others understand how this addresses the question asked. You can find more information on how to write good answers in the help center.
    – Community Bot
    Commented Feb 6, 2022 at 13:35
  • Seems like this answer may be a more suitable comment. Commented Feb 7, 2022 at 4:57

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