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!

一些潜在有用的建议，部分“焦点悬停”与双屏幕。它不能修复一些问题，比如当另一个屏幕已经有输入框焦点时，在输入框中输入。但它可能会帮助那些来这里“专注于悬停”的人。

没有这个修复，我总是不得不“焦点点击”在监视器之前，我可以上下文点击任何东西。

你可以通过这个获得“focus on hover”的一些方面:

进入“系统首选项” 选择“任务控制”选项 在那里你应该看到“显示有单独的空间”，去掉它

然后至少选择了Monitor1，现在你可以立即点击Monitor2中的某些内容，比如电子邮件或Tab，而不需要第一次“焦点点击”。

通常情况下，这可能并不适用于每个人，这取决于操作系统版本和其他事情。

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。

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
}

尝试了这些选项后，我的Command-Tab开始表现得很奇怪。以下是它如何再次关注应用程序的解决方案:

之前的一个特性，即终端的窗口焦点随着鼠标移动而改变的能力，在10.6中被打破，导致Command-Tab不能正确地转移窗口焦点。要解决这个问题，只需在终端中粘贴以下命令:

默认写com.apple.Terminal FocusFollowsMouse -string否

然后重新启动终端。

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。