--- a/devtools/client/preferences/devtools.js
+++ b/devtools/client/preferences/devtools.js
@@ -318,17 +318,17 @@ pref("devtools.editor.tabsize", 2);
 pref("devtools.editor.expandtab", true);
 pref("devtools.editor.keymap", "default");
 pref("devtools.editor.autoclosebrackets", true);
 pref("devtools.editor.detectindentation", true);
 pref("devtools.editor.enableCodeFolding", true);
 pref("devtools.editor.autocomplete", true);
 
 // Enable the Font Inspector
-pref("devtools.fontinspector.enabled", false);
+pref("devtools.fontinspector.enabled", true);
 
 // Pref to store the browser version at the time of a telemetry ping for an
 // opened developer tool. This allows us to ping telemetry just once per browser
 // version for each user.
 pref("devtools.telemetry.tools.opened.version", "{}");
 
 // Enable the JSON View tool (an inspector for application/json documents) on
 // Nightly and Dev. Edition.