Open the Inspector - Firefox Developer Tools 编辑

There are two main ways to open the Inspector:

• Choose Tools > Web Developer > Inspector from the Menu Bar or the equivalent keyboard shortcut.
• Right-click an element on a web page and select Inspect Element.

The Inspector will appear at the bottom of the browser window:

You can also set the pane to appear at the left side of the browser window:

To the right side of the browser window:

Or in a separate window:

To start finding your way around the Inspector, see the UI tour.