--- a/toolkit/toolkit/about/aboutAddons.ftl
+++ b/toolkit/toolkit/about/aboutAddons.ftl
@@ -152,36 +152,46 @@ extensions-warning-update-security-enabl
 ## Strings connected to add-on updates
 
 extensions-updates-check-for-updates =
     .label = Khangela iZihlaziyi
     .accesskey = K
 extensions-updates-view-updates =
     .label = Jonga uhlaziyo lwakutshanje
     .accesskey = J
+addon-updates-check-for-updates = Khangela iZihlaziyi
+    .accesskey = K
+addon-updates-view-updates = Jonga uhlaziyo lwakutshanje
+    .accesskey = J
 
 # This menu item is a checkbox that toggles the default global behavior for
 # add-on update checking.
 
 extensions-updates-update-addons-automatically =
     .label = Uhlaziyo nezongezelelo ngokuzenzekelayo
     .accesskey = n
+addon-updates-update-addons-automatically = Uhlaziyo nezongezelelo ngokuzenzekelayo
+    .accesskey = n
 
 ## Specific add-ons can have custom update checking behaviors ("Manually",
 ## "Automatically", "Use default global behavior"). These menu items reset the
 ## update checking behavior for all add-ons to the default global behavior
 ## (which itself is either "Automatically" or "Manually", controlled by the
 ## extensions-updates-update-addons-automatically.label menu item).
 
 extensions-updates-reset-updates-to-automatic =
     .label = Seta kwakhona zonke izongezelelo zihlaziye ngokuzenzekelayo
     .accesskey = S
 extensions-updates-reset-updates-to-manual =
     .label = Seta kwakhona zonke izongezelelo zihlaziywe ngesandla
     .accesskey = S
+addon-updates-reset-updates-to-automatic = Seta kwakhona zonke izongezelelo zihlaziye ngokuzenzekelayo
+    .accesskey = S
+addon-updates-reset-updates-to-manual = Seta kwakhona zonke izongezelelo zihlaziywe ngesandla
+    .accesskey = S
 
 ## Status messages displayed when updating add-ons
 
 extensions-updates-updating =
     .value = Ihlaziya izongezelelo
 extensions-updates-installed =
     .value = Izongezelelo zakho zihlaziyiwe.
 extensions-updates-downloaded =
@@ -190,19 +200,27 @@ extensions-updates-restart =
     .label = Qalisa kwakhona ukugqibezela ufakelo
 extensions-updates-none-found =
     .value = Akukho zihlaziyi zifumanekayo
 extensions-updates-manual-updates-found =
     .label = Jonga uhlaziyo olufumanekayo
 extensions-updates-update-selected =
     .label = Fakela iZihlaziyi
     .tooltiptext = Fakela uhlaziyo olufumanekayo kolu ludwe
+addon-updates-updating = Ihlaziya izongezelelo
+addon-updates-installed = Izongezelelo zakho zihlaziyiwe.
+addon-updates-none-found = Akukho zihlaziyi zifumanekayo
+addon-updates-manual-updates-found = Jonga uhlaziyo olufumanekayo
 
 ## Add-on install/debug strings for page options menu
 
+addon-install-from-file = Fakela izongezelelo ezisuka kule fayile…
+    .accesskey = F
+addon-install-from-file-dialog-title = Khetha isongezelelo ukufakela
+addon-install-from-file-filter-name = Izongezelelo
 
 ## Extension shortcut management
 
 
 ## Recommended add-ons page
 
 
 ## Add-on actions