--- a/browser/browser/browser.ftl
+++ b/browser/browser/browser.ftl
@@ -663,16 +663,18 @@ urlbar-group-quickactions =
 reader-view-enter-button =
     .aria-label = Fara í lesham
 # This should match menu-view-close-readerview in menubar.ftl
 reader-view-close-button =
     .aria-label = Loka lesham
 
 ## Picture-in-Picture urlbar button
 
+picture-in-picture-urlbar-button =
+    .tooltiptext = Víxla mynd-í-mynd af/á
 
 ## Full Screen and Pointer Lock UI
 
 # Please ensure that the domain stays in the `<span data-l10n-name="domain">` markup.
 # Variables
 #  $domain (String): the domain that is full screen, e.g. "mozilla.org"
 fullscreen-warning-domain = <span data-l10n-name="domain">{ $domain }</span> er með fylltan skjá
 fullscreen-warning-no-domain = Þetta skjal er nú á fylltum skjá

--- a/toolkit/toolkit/global/browser-utils.ftl
+++ b/toolkit/toolkit/global/browser-utils.ftl
@@ -1,6 +1,10 @@
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 # Used for data: URLs where we don't have any useful origin information
 browser-utils-url-data = (gögn)
+# Used for extension URLs
+# Variables:
+#   $extension (string) - Name of the extension that generated the URL
+browser-utils-url-extension = Forritsauki ({ $extension })

--- a/toolkit/toolkit/neterror/netError.ftl
+++ b/toolkit/toolkit/neterror/netError.ftl
@@ -22,16 +22,17 @@ neterror-open-portal-login-page-button = Opna net innskráningar síðu
 neterror-override-exception-button = Samþykkja áhættuna og halda áfram
 neterror-pref-reset-button = Endurheimta sjálfgefnar stillingar
 neterror-return-to-previous-page-button = Til baka
 neterror-return-to-previous-page-recommended-button = Fara til baka (ráðlagt)
 neterror-try-again-button = Reyna aftur
 neterror-add-exception-button = Alltaf halda áfram fyrir þetta vefsvæði
 neterror-settings-button = Breyta DNS-stillingum
 neterror-view-certificate-link = Skoða skilríki
+neterror-trr-continue-this-time = Halda áfram að þessu sinni
 neterror-disable-native-feedback-warning = Halda alltaf áfram
 
 ##
 
 neterror-pref-reset = Svo virðist sem netöryggisstillingar gætu valdið þessu. Viltu endurheimta sjálfgefnar stillingar?
 neterror-error-reporting-automatic = Tilkynntu villur eins og þessa til að hjálpa { -vendor-short-name } að bera kennsl á og loka á hættuleg vefsvæði
 
 ## Specific error messages