--- a/taskcluster/ci/config.yml
+++ b/taskcluster/ci/config.yml
@@ -39,16 +39,17 @@ treeherder:
         'Rap-Prof-1proc': 'Raptor performance tests on Firefox with Gecko Profiling and without e10s'
         'Rap-ChC': 'Raptor performance tests on Google Chrome Canary'
         'Rap-ChD': 'Raptor performance tests on Google Chrome Dev'
         'Rap-Cr': 'Raptor performance tests on Google Chromium'
         'Rap-P': 'Raptor power tests on Firefox'
         'Rap-P-1proc': 'Raptor power tests on Firefox without e10s'
         'Rap-fenix': 'Raptor performance tests on Fenix'
         'Rap-fennec': 'Raptor performance tests on Fennec'
+        'Rap-fennec-1proc': 'Raptor performance tests on Fennec without e10s'
         'Rap-refbrow': 'Raptor performance tests on the reference browser'
         'T': 'Talos performance tests'
         'T-1proc': 'Talos performance tests without e10s'
         'Tsd': 'Talos performance tests with e10s, Stylo disabled'
         'Tsd-1proc': 'Talos performance tests with Stylo disabled without e10s'
         'Tss': 'Talos performance tests with e10s, Stylo sequential'
         'Tss-1proc': 'Talos performance tests with Stylo sequential without e10s'
         'tt': 'Telemetry tests'

--- a/taskcluster/ci/test/raptor.yml
+++ b/taskcluster/ci/test/raptor.yml
@@ -1102,16 +1102,57 @@ raptor-speedometer-geckoview-power:
             - --test=raptor-speedometer
             - --app=geckoview
             - --binary=org.mozilla.geckoview_example
             - --power-test
             - --page-cycles 5
             - --host HOST_IP
             - --activity=org.mozilla.geckoview_example.GeckoViewActivity
 
+raptor-scn-power-idle-fenix:
+    description: "Raptor idle-browser power-usage test on Fenix"
+    try-name: raptor-scn-power-idle-fenix
+    treeherder-symbol: Rap-fenix(idl)
+    run-on-projects: ['try']
+    e10s: true
+    target:
+        by-test-platform:
+            android-hw.*-aarch64.*/.*:
+                index: project.mobile.fenix.v2.branch.master.latest.raptor.aarch64
+                name: target.apk
+            default:
+                index: project.mobile.fenix.v2.branch.master.latest.raptor.arm
+                name: target.apk
+    tier: 3
+    max-run-time: 1800
+    mozharness:
+        extra-options:
+            - --test=raptor-scn-power-idle
+            - --app=fenix
+            - --binary-path=org.mozilla.fenix.raptor
+            - --power-test
+            - --host HOST_IP
+            - --activity=org.mozilla.fenix.browser.BrowserPerformanceTestActivity
+
+raptor-scn-power-idle-fennec:
+    description: "Raptor idle-browser power-use measurement on Fennec"
+    try-name: raptor-scn-power-idle-fennec
+    treeherder-symbol: Rap-fennec(idl)
+    target: target.apk
+    run-on-projects: ['try']
+    tier: 3
+    max-run-time: 1800
+    mozharness:
+        extra-options:
+            - --test=raptor-scn-power-idle
+            - --app=fennec
+            - --binary=org.mozilla.fennec_aurora
+            - --power-test
+            - --host HOST_IP
+
 raptor-scn-power-idle-geckoview:
     description: "Raptor idle-browser power-use measurement on GeckoView"
     try-name: raptor-scn-power-idle-geckoview
     treeherder-symbol: Rap-P(idl)
     target: geckoview_example.apk
     run-on-projects:
         by-test-platform:
             android-hw.*/pgo: ['try', 'trunk', 'mozilla-central']
@@ -1120,39 +1161,41 @@ raptor-scn-power-idle-geckoview:
     max-run-time: 1800
     mozharness:
         extra-options:
             - --test=raptor-scn-power-idle
             - --app=geckoview
             - --binary=org.mozilla.geckoview_example
             - --power-test
             - --host HOST_IP
-            - --activity=GeckoViewActivity
+            - --activity=org.mozilla.geckoview_example.GeckoViewActivity
 
 raptor-scn-power-idle-refbrow:
     description: "Raptor idle-browser power-use measurement on Reference Browser"
     try-name: raptor-scn-power-idle-refbrow
     treeherder-symbol: Rap-refbrow(idl)
     target:
-        index: project.mobile.reference-browser.signed-nightly.nightly.latest
-        name: target.arm.apk
-    run-on-projects:
         by-test-platform:
-            android-hw.*/pgo: ['try']
-            default: ['try']
+            android-hw.*-aarch64.*/.*:
+                index: project.mobile.reference-browser.signed-nightly.nightly.latest
+                name: target.aarch64.apk
+            default:
+                index: project.mobile.reference-browser.signed-nightly.nightly.latest
+                name: target.arm.apk
+    run-on-projects: ['try']
     tier: 3
     max-run-time: 1800
     mozharness:
         extra-options:
             - --test=raptor-scn-power-idle
             - --app=refbrow
             - --binary-path=org.mozilla.reference.browser
             - --power-test
             - --host HOST_IP
-            - --activity=BrowserTestActivity
+            - --activity=org.mozilla.reference.browser.BrowserTestActivity
 
 raptor-speedometer-fennec:
     description: "Raptor Speedometer on Fennec"
     try-name: raptor-speedometer-fennec
     treeherder-symbol: Rap(sp)
     target: target.apk
     run-on-projects:
         by-test-platform:

--- a/taskcluster/ci/test/test-sets.yml
+++ b/taskcluster/ci/test/test-sets.yml
@@ -592,21 +592,25 @@ android-hw-aarch64-raptor:
     - raptor-tp6m-10-geckoview-cold
     - raptor-tp6m-11-geckoview-cold
     - raptor-tp6m-12-geckoview-cold
     - raptor-tp6m-13-geckoview-cold
     - raptor-tp6m-14-geckoview-cold
 
 android-hw-arm7-raptor-power:
     - raptor-speedometer-geckoview-power
+    - raptor-scn-power-idle-fenix
+    - raptor-scn-power-idle-fennec
     - raptor-scn-power-idle-geckoview
     - raptor-scn-power-idle-refbrow
 
 android-hw-aarch64-raptor-power:
     - raptor-speedometer-geckoview-power
+    - raptor-scn-power-idle-fenix
+    - raptor-scn-power-idle-fennec
     - raptor-scn-power-idle-geckoview
     - raptor-scn-power-idle-refbrow
 
 android-hw-arm7-raptor-nightly:
     - raptor-speedometer-fennec
     - raptor-tp6m-1-fennec
     - raptor-tp6m-2-fennec
     - raptor-tp6m-3-fennec

--- a/testing/raptor/raptor/tests/raptor-scn-power-idle.ini
+++ b/testing/raptor/raptor/tests/raptor-scn-power-idle.ini
@@ -4,13 +4,19 @@ test_url = about:blank
 scenario_time = 1200000
 measure = fakeMeasure
 unit = scenarioComplete
 page_cycles = 1
 page_timeout = 1320000
 lower_is_better = true
 alert_threshold = 2.0
 
+[raptor-scn-power-idle-fenix]
+apps = fenix
+
+[raptor-scn-power-idle-fennec]
+apps = fennec
+
 [raptor-scn-power-idle-geckoview]
 apps = geckoview
 
 [raptor-scn-power-idle-refbrow]
 apps = refbrow