diff --git a/config/locales/is.yml b/config/locales/is.yml
index d90721d4ce7..8b9fa851c68 100644
--- a/config/locales/is.yml
+++ b/config/locales/is.yml
@@ -1446,6 +1446,7 @@ is:
       electron: Electron
       firefox: Firefox
       generic: Óþekktur vafri
+      huawei_browser: Huawei-vafri
       ie: Internet Explorer
       micro_messenger: MicroMessenger
       nokia: Nokia S40 Ovi vafri
@@ -1455,6 +1456,7 @@ is:
       qq: QQ vafri
       safari: Safari
       uc_browser: UC-vafrinn
+      unknown_browser: Óþekktur vafri
       weibo: Weibo
     current_session: Núverandi seta
     description: "%{browser} á %{platform}"
@@ -1467,8 +1469,10 @@ is:
       chrome_os: ChromeOS
       firefox_os: Firefox OS
       ios: iOS
+      kai_os: KaiOS
       linux: Linux
       mac: Mac
+      unknown_platform: Óþekkt stýrikerfi
       windows: Windows
       windows_mobile: Windows Mobile
       windows_phone: Windows Phone