MicrosoftDocs · mikehoffms · Mar 13, 2025 · Mar 13, 2025 · Mar 19, 2025 · Mar 19, 2025
diff --git a/.../devtools-guide-chromium/performance/extension-images/capture-settings-icon.png b/.../devtools-guide-chromium/performance/extension-images/capture-settings-icon.png
diff --git a/...-guide-chromium/performance/extension-images/custom-track-console-timestamp.png b/...-guide-chromium/performance/extension-images/custom-track-console-timestamp.png
diff --git a/...soft-edge/devtools-guide-chromium/performance/extension-images/custom-track.png b/...soft-edge/devtools-guide-chromium/performance/extension-images/custom-track.png
diff --git a/.../devtools-guide-chromium/performance/extension-images/custom-tracks-setting.png b/.../devtools-guide-chromium/performance/extension-images/custom-tracks-setting.png
diff --git a/microsoft-edge/devtools-guide-chromium/performance/extension-images/example.png b/microsoft-edge/devtools-guide-chromium/performance/extension-images/example.png
diff --git a/...devtools-guide-chromium/performance/extension-images/expanded-custom-tracks.png b/...devtools-guide-chromium/performance/extension-images/expanded-custom-tracks.png
diff --git a/...edge/devtools-guide-chromium/performance/extension-images/marker-in-timings.png b/...edge/devtools-guide-chromium/performance/extension-images/marker-in-timings.png
diff --git a/...-edge/devtools-guide-chromium/performance/extension-images/performance-icon.png b/...-edge/devtools-guide-chromium/performance/extension-images/performance-icon.png
diff --git a/...osoft-edge/devtools-guide-chromium/performance/extension-images/record-icon.png b/...osoft-edge/devtools-guide-chromium/performance/extension-images/record-icon.png
diff --git a/microsoft-edge/devtools-guide-chromium/performance/extension.md b/microsoft-edge/devtools-guide-chromium/performance/extension.md
diff --git a/microsoft-edge/devtools-guide-chromium/sample-code/sample-code.md b/microsoft-edge/devtools-guide-chromium/sample-code/sample-code.md
@@ -165,6 +165,10 @@ Cloning the repo is recommended over downloading the repo, so that you can pull
 
 To clone the **MicrosoftEdge / Demos** repo to your local drive:
 
+1. In a command prompt, enter `git` to check whether git is installed.
+
+1. If not done already, [Download git](https://git-scm.com/downloads) and install it.
+
 1. Go to [MicrosoftEdge / Demos](https://github.com/MicrosoftEdge/Demos) in a new window or tab.
 
 1. Click the **Code** drop-down button, and then click the **Copy url to clipboard** button.

diff --git a/microsoft-edge/toc.yml b/microsoft-edge/toc.yml
@@ -559,6 +559,10 @@
                 - name: Analyze CSS selector performance during Recalculate Style events
                   href: ./devtools-guide-chromium/performance/selector-stats.md
                   displayName: Performance tool, css selector stats, css selectors, selector stats, selector statistics, css selector statistics
+
+                - name: Customize your performance data with extensibility API
+                  href: ./devtools-guide-chromium/performance/extension.md
+                  displayName: Performance tool
 # Memory tool -----------------------------------------------------------------
             - name: Memory tool
               items: