diff --git a/locales/el/app.ftl b/locales/el/app.ftl
index 5eff84171f..679f7657e7 100644
--- a/locales/el/app.ftl
+++ b/locales/el/app.ftl
@@ -677,6 +677,21 @@ TrackMemoryGraph--relative-memory-at-this-time = σχετική μνήμη αυ
 TrackMemoryGraph--memory-range-in-graph = εύρος μνήμης στο γράφημα
 TrackMemoryGraph--operations-since-the-previous-sample = λειτουργίες από το προηγούμενο δείγμα
 
+## TrackPowerGraph
+## This is used to show the power used by the CPU and other chips in a computer,
+## graphed over time.
+## It's not displayed by default in the UI, but an example can be found at
+## https://share.firefox.dev/3a1fiT7.
+
+# This is used in the tooltip when the power value uses the Watt unit.
+# Variables:
+#   $value (String) - the power value at this location
+TrackPowerGraph--tooltip-power-watt = Ισχύς: <em>{ $value } W</em>
+# This is used in the tooltip when the power value uses the Milliwatt unit.
+# Variables:
+#   $value (String) - the power value at this location
+TrackPowerGraph--tooltip-power-milliwatt = Ισχύς: <em>{ $value } mW</em>
+
 ## TrackSearchField
 ## The component that is used for the search input in the track context menu.
 
diff --git a/locales/sv-SE/app.ftl b/locales/sv-SE/app.ftl
index 12b3962c8d..6a5dc91ff0 100644
--- a/locales/sv-SE/app.ftl
+++ b/locales/sv-SE/app.ftl
@@ -674,6 +674,21 @@ TrackMemoryGraph--relative-memory-at-this-time = relativa minnet vid denna tidpu
 TrackMemoryGraph--memory-range-in-graph = minnesintervall i grafen
 TrackMemoryGraph--operations-since-the-previous-sample = operationer sedan föregående prov
 
+## TrackPowerGraph
+## This is used to show the power used by the CPU and other chips in a computer,
+## graphed over time.
+## It's not displayed by default in the UI, but an example can be found at
+## https://share.firefox.dev/3a1fiT7.
+
+# This is used in the tooltip when the power value uses the Watt unit.
+# Variables:
+#   $value (String) - the power value at this location
+TrackPowerGraph--tooltip-power-watt = Effekt: <em>{ $value } W</em>
+# This is used in the tooltip when the power value uses the Milliwatt unit.
+# Variables:
+#   $value (String) - the power value at this location
+TrackPowerGraph--tooltip-power-milliwatt = Effekt: <em>{ $value } mW </em>
+
 ## TrackSearchField
 ## The component that is used for the search input in the track context menu.