大约10年来，我一直在周期性地回到这个问题上，最后我找到了一个简单的解决方案:AutoRaise https://github.com/sbmpost/AutoRaise

默认情况下，它启用焦点跟随鼠标和自动升起。您可以使用配置选项来延迟自动触发。

它也有所谓的“扭曲”功能，当你Command-Tab到窗口时，将鼠标指针居中。在我尝试之前，我从来不知道我需要它，但一旦我尝试了，我就不能没有它!

Codetek有一款产品可以做到这一点，但他们从未为Leopard或更高版本发布过版本。

MondoMouse可以做焦点跟踪鼠标，但不能自动提升。 即使是焦点跟随鼠标也坏了。 例如，它不能很好地使用命令-标签(如果你命令-标签到一个新应用程序，并且不碰鼠标，那么它不应该将焦点切换回鼠标指针所处的位置——我非常确定我所见过的Linux中的每个实现都能做到这一点，但MondoMouse没有)。

你可以只在终端窗口中启用焦点跟随鼠标(没有自动升起)(只需在终端中执行以下命令):

defaults write com.apple.Terminal FocusFollowsMouse -string YES

同样，对于X11窗口:

defaults write org.x.X11 wm_ffm -bool true 

(对于10.5.5之前的mac版本，这是:

defaults write com.apple.x11 wm_ffm true

)

我不知道还有其他应用程序支持它。

聚焦鼠标并不是一个特别适合OS X的输入法，因为它的菜单栏被设计在屏幕的顶部。当您将鼠标移出应用程序窗口以进入菜单时，如果它在此过程中穿过任何其他应用程序的窗口，菜单将发生变化。

所以是的，在回复dreeves的评论时，它对终端(或桌面上任何其他单一应用程序)工作得非常好，因为它只会影响终端窗口，所以当你切换窗口时，菜单永远不会改变。它适用于X11，因为X11应用程序通常将它们的菜单栏嵌入在窗口中，所以你不必离开窗口就可以访问它们。

当然，您可以通过在焦点更改和/或菜单切换之前引入人为延迟来解决菜单更改问题，但它永远不会像在其他桌面上那样工作。

Amethyst支持此特性。它可以很容易地安装与酿造安装紫水晶。

下面是我使用的配置文件。它关闭了所有的功能，除了焦点跟随鼠标。保存到~/.amethyst。

{
    "LAYOUTS": "----------------------",
    "layouts": [
    ],

    "MODIFIERS": "----------------------",
    "Valid modifiers are": [
        "option",
        "shift",
        "control",
        "command"
    ],

    "mod1": [
    ],
    "mod2": [
    ],

    "COMMANDS": "----------------------",
    "Commands are": {
        "cycle-layout": "Cycle layout to the next layout",
        "cycle-layout-backward": "Cycle layout to the previous layout",
        "focus-screen-1": "Focus the main window on the first screen",
        "focus-screen-2": "Focus the main window on the second screen",
        "focus-screen-3": "Focus the main window on the third screen",
        "focus-screen-2": "Focus the main window on the second screen",
        "focus-screen-3": "Focus the main window on the third screen",
        "focus-screen-4": "Focus the main window on the fourth screen",
        "throw-screen-1": "Throw the focused window to the first screen",
        "throw-screen-2": "Throw the focused window to the second screen",
        "throw-screen-3": "Throw the focused window to the third screen",
        "throw-screen-4": "Throw the focused window to the fourth screen",
        "shrink-main": "Shrink the main pane of the current layout",
        "expand-main": "Expand the main pane of the current layout",
        "increase-main": "Increase the number of windows in the main pane",
        "decrease-main": "Decrease the number of windows in the main pane",
        "focus-ccw": "Move window focus counter-clockwise on the current screen",
        "focus-cw": "Move window focus clockwise on the current screen",
        "swap-ccw": "Swap focused window with the next window going counter-clockwi$
        "swap-cw": "Swap focused window with the next window going clockwise",
        "swap-main": "Swap focused window with the main window of its screen",
        "throw-space-1": "Throw the focused window to the first space",
        "throw-space-2": "Throw the focused window to the second space",
        "throw-space-3": "Throw the focused window to the third space",
        "throw-space-4": "Throw the focused window to the fourth space",
        "throw-space-5": "Throw the focused window to the fifth space",
        "throw-space-6": "Throw the focused window to the sixth space",
        "throw-space-7": "Throw the focused window to the seventh space",
        "throw-space-8": "Throw the focused window to the eighth space",
        "throw-space-9": "Throw the focused window to the ninth space",
        "throw-space-8": "Throw the focused window to the eighth space",
        "throw-space-9": "Throw the focused window to the ninth space",
        "toggle-float": "Toggle the focused window between being floating and tiled"
    },

    "screens": "3",

    "cycle-layout": {
        "mod": "mod1",
    },
    "cycle-layout-backward": {
        "mod": "mod2",
    },
    "select-tall-layout": {
        "mod": "mod1"
    },
    "select-wide-layout": {
        "mod": "mod1"
    },
    "select-fullscreen-layout": {
        "mod": "mod1"
    },
    "select-column-layout": {
        "mod": "mod1"
    },
        "mod": "mod1"
    },
    "focus-screen-1": {
        "mod": "mod1"
    },
    "focus-screen-2": {
        "mod": "mod1"
    },
    "focus-screen-3": {
        "mod": "mod1"
    },
    "focus-screen-4": {
        "mod": "mod1"
    },
    "throw-screen-1": {
        "mod": "mod2"
    },
    "throw-screen-2": {
        "mod": "mod2"
    },
    "throw-screen-3": {
        "mod": "mod2"
    },
    "throw-screen-4": {
        "mod": "mod2"
    "throw-screen-4": {
        "mod": "mod2"
    },
    "shrink-main": {
        "mod": "mod1"
    },
    "expand-main": {
        "mod": "mod1"
    },
    "increase-main": {
        "mod": "mod1"
    },
    "decrease-main": {
        "mod": "mod1"
    },
    "focus-ccw": {
        "mod": "mod1"
    },
    "focus-cw": {
        "mod": "mod1"
    },
    "swap-screen-ccw": {
        "mod": "mod2"
    },
    "swap-screen-cw": {
    },
    "swap-screen-cw": {
        "mod": "mod2"
    },
    "swap-ccw": {
        "mod": "mod2"
    },
    "swap-cw": {
        "mod": "mod2"
    },
    "swap-main": {
        "mod": "mod1"
    },
    "throw-space-1": {
        "mod": "mod2"
    },
    "throw-space-2": {
        "mod": "mod2"
    },
    "throw-space-3": {
        "mod": "mod2"
    },
    "throw-space-4": {
        "mod": "mod2"
    },

        "mod": "mod2"
    },
    "throw-space-5": {
        "mod": "mod2"
    },
    "throw-space-6": {
        "mod": "mod2"
    },
    "throw-space-7": {
        "mod": "mod2"
    },
    "throw-space-8": {
        "mod": "mod2"
    },
    "throw-space-9": {
        "mod": "mod2"
    },
    "toggle-float": {
        "mod": "mod1"
    },
    "toggle-tiling": {
        "mod": "mod2"
    },
    "display-current-layout": {
        "mod": "mod1"
    "display-current-layout": {
        "mod": "mod1"
    },

    "MISC": "----------------------",
    "floating": [],
    "float-small-windows": false,
    "mouse-follows-focus": false,
    "focus-follows-mouse": true,
    "enables-layout-hud": false,
    "enables-layout-hud-on-space-change": false
}

你可以在终端机上做。通过在命令行中发出以下命令来创建应用程序:

defaults write com.apple.Terminal FocusFollowsMouse -bool true

对于X11应用，你可以这样做:

defaults write com.apple.x11 wm_ffm -bool true

在Snow Leopard中，使用这个:

defaults write org.x.X11 wm_ffm -bool true

显然，有一个名为CodeTek虚拟桌面的程序可以在系统范围内模拟它，但它需要花费$$(他们从未为OSX Leopard推出过版本)。

鼠标聚焦现在可以在macOS中实现，在我的Mojave中，使用chunkwm。 请参阅此堆栈溢出响应以获得“无自动触发”解决方案。自动驾驶是通过离开激活的

chunkc set ffm_disable_autoraise         0

在~ / .chunkwmrc。

编辑2019-09-12:

Chunkwm已经被yabai取代。如何安装:

brew tap koekeishiya/formulae
brew install yabai
mkdir -p ~/.config/yabai/
printf 'yabai -m config focus_follows_mouse autoraise' >> ~/.config/yabai/yabairc
brew services start yabai