}
```
which would be set in the plist file like this:
-```plist
- <key>Homepage</key>
- <dict>
- <key>URL</key>
- <string>http://example.com</string>
- </dict>
+```xml
+<key>Homepage</key>
+<dict>
+ <key>URL</key>
+ <string>http://example.com</string>
+</dict>
```
-As correctly writing nested values with the `defaults` command can be hard, Firefox also supports writing nested values by separating them with `__`, like this:
+Correctly writing the nested value with the `defaults` command can be hard, so you can flatten the keys by separating them with `__`, like this:
```bash
sudo defaults write /Library/Preferences/org.mozilla.firefox Homepage__URL -string "http://example.com"
```