diff --git a/toolkit/components/telemetry/TelemetryEnvironment.jsm b/toolkit/components/telemetry/TelemetryEnvironment.jsm
index d57d51f61621..182ab245607e 100644
--- a/toolkit/components/telemetry/TelemetryEnvironment.jsm
+++ b/toolkit/components/telemetry/TelemetryEnvironment.jsm
@@ -649,7 +649,6 @@ EnvironmentAddonBuilder.prototype = {
       theme: await this._getActiveTheme(),
       activePlugins: this._getActivePlugins(atStartup),
       activeGMPlugins: await this._getActiveGMPlugins(atStartup),
-      activeExperiment: {},
       persona: personaId,
     };
 
diff --git a/toolkit/content/aboutTelemetry.js b/toolkit/content/aboutTelemetry.js
index d25a5c0026cf..f00f73aeda98 100644
--- a/toolkit/content/aboutTelemetry.js
+++ b/toolkit/content/aboutTelemetry.js
@@ -669,7 +669,6 @@ var EnvironmentData = {
     this.renderAddonsObject(addons.activeAddons, addonSection, "activeAddons");
     this.renderActivePlugins(addons.activePlugins, addonSection, "activePlugins");
     this.renderKeyValueObject(addons.theme, addonSection, "theme");
-    this.renderKeyValueObject(addons.activeExperiment, addonSection, "activeExperiment");
     this.renderAddonsObject(addons.activeGMPlugins, addonSection, "activeGMPlugins");
     this.renderPersona(addons, addonSection, "persona");