Mozilla Firefox包含一个混合内容阻止^{(Mixed Content Blocker)}程序。此混合内容拦截器默认启用，可保护用户免受^{(Content Blocker)}HTTPS页面上的中间人攻击和窃听者的攻击。

Mozilla将混合内容^{(Mixed Content)}分为两种类型 -混合主动内容^{(Mixed Active Content)}（如脚本）和混合被动内容^{(Mixed Passive Content)}（如图像）。前者被认为是危险的，因为它可以改变HTTPS页面的行为并从用户那里窃取敏感数据——因此它在^(HTTPS)Firefox中被默认阻止。

现在，每当您的用户访问带有被阻止的Mixed Active Content的^{(Mixed Active Content)}HTTPS页面时，您将看到带有以下消息的通知：

Firefox has blocked content that isn’t secure.

它将显示一个防护罩并提供以下选项：了解^(Learn)更多、继续阻止^{(Keep Blocking)}、禁用^(Disable)此页面上的保护和现在不。

在此页面上选择禁用保护也将允许混合活动内容^{(Mixed Active Content)}，但Firefox可能会或可能不会记住您的设置，下次您访问此站点时。此外，如果您经常在受信任的站点上看到此消息，它可能会激怒或惹恼您，您可能希望禁用此默认安全设置。

在 Firefox 中禁用混合内容

要在 Windows 8 上禁用Firefox^(Firefox)中的混合内容警告，请打开Firefox ，在地址栏中输入about:config并按^{(about:config)}Enter。

使用搜索框搜索名为security.mixed_content.block_active_content 的设置。^{(security.mixed_content.block_active_content.)}

找到它后，双击它。它的值会自动从True变为False。

重新启动 Firefox 浏览器。

But mind you, this will make your Firefox browser a little less secure!

Internet Explorer用户可能想了解如何禁用活动内容。

How to Enable or Disable Mixed Content in Firefox

Mozilla Firefox includes a Mixed Content Blocker. This Mixed Content Blocker is enabled by default and protect users from man-in-the-middle attacks and eavesdroppers on HTTPS pages.

Mozilla classifies Mixed Content into two types – Mixed Active Content like scripts, and Mixed Passive Content like images. The former is considered to be dangerous, as it can alter the behavior of an HTTPS page and steal sensitive data from users – hence it gets blocked by default in Firefox.

Now, whenever your user visits an HTTPS page with blocked Mixed Active Content, you will see a notification with the following message:

Firefox has blocked content that isn’t secure.

It will display a shield and offer the following options: Learn More, Keep Blocking, Disable protection on this page and Not now.

Selecting Disable protection on this page will allow Mixed Active Content too, but Firefox may or may not remember your settings, the next time you visit this site. Moreover, if you see this message on your trusted sites often, it may irritate or annoy you, and you may want to disable this default security setting.

Disable Mixed Content in Firefox

To disable mixed content warnings in Firefox on your Windows 8, open Firefox, enter about:config into the address bar and hit Enter.

Using the search box, search for a setting called security.mixed_content.block_active_content.

Once you have found it, double-click on it. Its value will automatically change from True to False.

Restart your Firefox browser.

But mind you, this will make your Firefox browser a little less secure!

Internet Explorer users may want to find out how they can disable active content.

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