User agent Switcher Extension - Allows you to define user agents and switch user agents to simulate different devices.

User Agent Switcher Extension—允许您定义用户代理以及切换用户代理来模拟不同设备。

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Switch to the Extensions TAB, and click the add button to add a new extension.

切换到Extensions选项卡，并单击add按钮添加新的扩展。

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In many cases, you can switch from one data type to another just by changing the filename extension.

在许多情况下，您可以从一种数据类型切换到另一种数据类型，只需更改文件扩展名即可。

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The digital switch extension, however, wouldn't be a free pass for broadcasters.

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Current customers are not required to switch to the new plans, but can choose to do so without a contract extension.

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But she noted it may be even more challenging for public school students considering a switch to private school, as counselors may not have the connections or relationships to secure an extension.

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