Steve Yegge不久前写了一篇关于这个问题的文章，他试图写一个合适的扩展，但失败了。从那以后，我试图为OS X找到聚焦跟随鼠标的应用程序，也失败了。

你不可能真的做得很好，因为Mac界面的设计根本没有考虑到焦点跟随鼠标(有或没有自动上升)。我怀疑这种情况在短时间内不会改变，除非它改变，否则每个试图实现焦点跟随鼠标的人都会遇到同样的障碍，并以不满意的结果结束(对于那些想要这样做的人来说)。

所以，是的，你想要这个是疯狂的——但出于技术原因。习惯按自己的方式使用Mac，我相信当你找到新的高效的工作方式时，你强迫它像你过去使用的任何X11东西那样工作的愿望会逐渐消退。

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!

我目前使用MondoMouse，即使有它的怪癖，没有它我也无法使用我的mac。他们有免费试用，我会推荐给每个人。

MondoMouse

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
}

有趣的是，Leopard在默认情况下启用了一种焦点跟随鼠标(无自动提升)功能。滚轮在非聚焦窗口中工作。