diff --git a/language/ar.js b/language/ar.js
index 9fa5fdbb6671488e689a3975e08df5ce99ea0f27..a96cac559a8a15dfaec880d4a65f9382aad872b7 100644
--- a/language/ar.js
+++ b/language/ar.js
@@ -217,7 +217,4 @@ H5PEditor.language.core = {
   a11yTitleShowLabel: 'Show label for AT',
   a11yTitleHideLabel: 'Hide label for AT',
   reuseSuccess: ':title was successfully imported from the H5P Hub.',
-  deleteAuthorTitle: 'Deleting author',
-  deleteAuthorChangeLogTitle: 'Deleting changelog',
-  confirm: 'Confirm'
 };
diff --git a/language/bs.js b/language/bs.js
index a7d6bb46ab743ef55ab8c54ec4aab2f7fe961597..300eeb9a72647f11cd1c52695537ad73033c8e3e 100644
--- a/language/bs.js
+++ b/language/bs.js
@@ -217,7 +217,4 @@ H5PEditor.language.core = {
   a11yTitleShowLabel: 'Show label for AT',
   a11yTitleHideLabel: 'Hide label for AT',
   reuseSuccess: ':title was successfully imported from the H5P Hub.',
-  deleteAuthorTitle: 'Deleting author',
-  deleteAuthorChangeLogTitle: 'Deleting changelog',
-  confirm: 'Confirm'
 };
diff --git a/language/cs.js b/language/cs.js
index 524a3e546a28d84676f25b7ec5a72d56c47da0f7..d73c30bbee1c750f181775dd3f6eb3f36b07c48e 100644
--- a/language/cs.js
+++ b/language/cs.js
@@ -217,7 +217,4 @@ H5PEditor.language.core = {
   enterFullscreenButtonLabel: 'Přejít na celou obrazovku',
   exitFullscreenButtonLabel: 'Ukončit celou obrazovku',
   reuseSuccess: ':title was successfully imported from the H5P Hub.',
-  deleteAuthorTitle: 'Deleting author',
-  deleteAuthorChangeLogTitle: 'Deleting changelog',
-  confirm: 'Confirm'
 };
diff --git a/language/de.js b/language/de.js
index 0950d4206e80ae983f1244acae8b4c9d04de535f..2f5c6968cca138bb5044a3f569a34b1b83af9738 100644
--- a/language/de.js
+++ b/language/de.js
@@ -217,7 +217,4 @@ H5PEditor.language.core = {
   a11yTitleShowLabel: 'Show label for AT',
   a11yTitleHideLabel: 'Hide label for AT',
   reuseSuccess: ':title was successfully imported from the H5P Hub.',
-  deleteAuthorTitle: 'Deleting author',
-  deleteAuthorChangeLogTitle: 'Deleting changelog',
-  confirm: 'Confirm'
 };
diff --git a/language/el.js b/language/el.js
index 6596f282c4f631ef51a0b2921ca6b772003bb1a4..c31e15d356cf1cc72bec5d4a091cd15b97dce415 100644
--- a/language/el.js
+++ b/language/el.js
@@ -217,7 +217,4 @@ H5PEditor.language.core = {
   a11yTitleShowLabel: 'Show label for AT',
   a11yTitleHideLabel: 'Hide label for AT',
   reuseSuccess: ':title was successfully imported from the H5P Hub.',
-  deleteAuthorTitle: 'Deleting author',
-  deleteAuthorChangeLogTitle: 'Deleting changelog',
-  confirm: 'Confirm'
 };
diff --git a/language/en.js b/language/en.js
index b2e9051eb7417f09a612111995cf460478e7a2c5..d9dc5c6bfb8f4275b76a9c7218576451ae117be7 100644
--- a/language/en.js
+++ b/language/en.js
@@ -292,7 +292,4 @@ H5PEditor.language.core = {
   a11yTitleShowLabel: 'Show label for AT',
   a11yTitleHideLabel: 'Hide label for AT',
   reuseSuccess: ':title was successfully imported from the H5P Hub.',
-  deleteAuthorTitle: 'Deleting author',
-  deleteAuthorChangeLogTitle: 'Deleting changelog',
-  confirm: 'Confirm'
 };
diff --git a/language/es-cr.js b/language/es-cr.js
index 05e7f5a6ace051c4268cce94d36969e5e0e7cb66..48d3115c75d01899a471fdc22c4c1edbff38b887 100644
--- a/language/es-cr.js
+++ b/language/es-cr.js
@@ -217,7 +217,4 @@ H5PEditor.language.core = {
   a11yTitleShowLabel: 'Show label for AT',
   a11yTitleHideLabel: 'Hide label for AT',
   reuseSuccess: ':title was successfully imported from the H5P Hub.',
-  deleteAuthorTitle: 'Deleting author',
-  deleteAuthorChangeLogTitle: 'Deleting changelog',
-  confirm: 'Confirm'
 };
diff --git a/language/es-mx.js b/language/es-mx.js
index 9b52afff299e9d3b88b4edfabe5cb3c7f7c4bd1c..8377e7682b7ee2ddbd0fc1c4daae373eff6f0e45 100644
--- a/language/es-mx.js
+++ b/language/es-mx.js
@@ -217,7 +217,4 @@ H5PEditor.language.core = {
   a11yTitleShowLabel: 'Show label for AT',
   a11yTitleHideLabel: 'Hide label for AT',
   reuseSuccess: ':title was successfully imported from the H5P Hub.',
-  deleteAuthorTitle: 'Deleting author',
-  deleteAuthorChangeLogTitle: 'Deleting changelog',
-  confirm: 'Confirm'
 };
diff --git a/language/es.js b/language/es.js
index a12ebff284b1d1114630ca502cdbc308d26137bb..7d03b54d80e595b89d55e1182c6d9360b0861ce3 100644
--- a/language/es.js
+++ b/language/es.js
@@ -219,7 +219,4 @@ H5PEditor.language.core = {
   a11yTitleShowLabel: 'Show label for AT',
   a11yTitleHideLabel: 'Hide label for AT',
   reuseSuccess: ':title was successfully imported from the H5P Hub.',
-  deleteAuthorTitle: 'Deleting author',
-  deleteAuthorChangeLogTitle: 'Deleting changelog',
-  confirm: 'Confirm'
 };
diff --git a/language/et.js b/language/et.js
index 69b625284bf26f0440da23ac272ae060caf6e65b..6c8340e1452e783b5e1d4e22bdf754dfbbe3ce27 100644
--- a/language/et.js
+++ b/language/et.js
@@ -219,7 +219,4 @@ H5PEditor.language.core = {
   a11yTitleShowLabel: 'Show label for AT',
   a11yTitleHideLabel: 'Hide label for AT',
   reuseSuccess: ':title was successfully imported from the H5P Hub.',
-  deleteAuthorTitle: 'Deleting author',
-  deleteAuthorChangeLogTitle: 'Deleting changelog',
-  confirm: 'Confirm'
 };
diff --git a/language/eu.js b/language/eu.js
index 39b368b6c171f4603ce4c3762a55a473068356de..f70044b00656653ef7f10f28a1753f272bd694d4 100644
--- a/language/eu.js
+++ b/language/eu.js
@@ -219,7 +219,4 @@ H5PEditor.language.core = {
   a11yTitleShowLabel: 'Show label for AT',
   a11yTitleHideLabel: 'Hide label for AT',
   reuseSuccess: ':title was successfully imported from the H5P Hub.',
-  deleteAuthorTitle: 'Deleting author',
-  deleteAuthorChangeLogTitle: 'Deleting changelog',
-  confirm: 'Confirm'
 };
diff --git a/language/fi.js b/language/fi.js
index 4d41f51d7fc707c15999f081e1055192dd7007fb..ede2bb0714238010513f4c4e43483c1ac6f63fbb 100644
--- a/language/fi.js
+++ b/language/fi.js
@@ -217,7 +217,4 @@ H5PEditor.language.core = {
   a11yTitleShowLabel: 'Show label for AT',
   a11yTitleHideLabel: 'Hide label for AT',
   reuseSuccess: ':title was successfully imported from the H5P Hub.',
-  deleteAuthorTitle: 'Deleting author',
-  deleteAuthorChangeLogTitle: 'Deleting changelog',
-  confirm: 'Confirm'
 };
diff --git a/language/fr.js b/language/fr.js
index 1f2dabe6b95b0f2b8088f896ce99ed6dd8c2974f..d6edc5fc0ac4367bf0be15996fa903dd73b29209 100644
--- a/language/fr.js
+++ b/language/fr.js
@@ -217,7 +217,4 @@ H5PEditor.language.core = {
   a11yTitleShowLabel: 'Show label for AT',
   a11yTitleHideLabel: 'Hide label for AT',
   reuseSuccess: ':title was successfully imported from the H5P Hub.',
-  deleteAuthorTitle: 'Deleting author',
-  deleteAuthorChangeLogTitle: 'Deleting changelog',
-  confirm: 'Confirm'
 };
diff --git a/language/it.js b/language/it.js
index f0f755f1dfa3470a6b825ab3ecc9fe33f9ebb4f9..8da641cfb79ca47d8acf5cd9df82e2752b6c1ea3 100644
--- a/language/it.js
+++ b/language/it.js
@@ -217,7 +217,4 @@ H5PEditor.language.core = {
   a11yTitleShowLabel: 'Show label for AT',
   a11yTitleHideLabel: 'Hide label for AT',
   reuseSuccess: ':title was successfully imported from the H5P Hub.',
-  deleteAuthorTitle: 'Deleting author',
-  deleteAuthorChangeLogTitle: 'Deleting changelog',
-  confirm: 'Confirm'
 };
diff --git a/language/ko.js b/language/ko.js
index 9c26891462c663852d4331efb9f70f3fee425ea0..660228b7a36a9bd676b506dcc6718b24693211d3 100644
--- a/language/ko.js
+++ b/language/ko.js
@@ -291,8 +291,5 @@ H5PEditor.language.core = {
   navigateToParent: '상위 탐색',
   a11yTitleShowLabel: 'AT 에 대한 라벨 표시',
   a11yTitleHideLabel: 'AT 에 대한 레이블 숨기기',
-  reuseSuccess: ':title was successfully imported from the H5P Hub.',
-  deleteAuthorTitle: 'Deleting author',
-  deleteAuthorChangeLogTitle: 'Deleting changelog',
-  confirm: 'Confirm'
+  reuseSuccess: ':title was successfully imported from the H5P Hub.'
 };
diff --git a/language/nb.js b/language/nb.js
index e80336e4ca2e77a42c1f12f51e2f0c7c879e1e04..2c6fc930ef229b85850bce5263e42fa021b1664b 100644
--- a/language/nb.js
+++ b/language/nb.js
@@ -290,7 +290,4 @@ H5PEditor.language.core = {
   a11yTitleShowLabel: 'Show label for AT',
   a11yTitleHideLabel: 'Hide label for AT',
   reuseSuccess: ':title was successfully imported from the H5P Hub.',
-  deleteAuthorTitle: 'Deleting author',
-  deleteAuthorChangeLogTitle: 'Deleting changelog',
-  confirm: 'Confirm'
 };
diff --git a/language/nl.js b/language/nl.js
index 6dedb74573ddbd54c08d79de4199fa241689697b..4f0c0844b0d0a31d131f25ce8bd41cdd92cf129e 100644
--- a/language/nl.js
+++ b/language/nl.js
@@ -217,7 +217,4 @@ H5PEditor.language.core = {
   a11yTitleShowLabel: 'Toon label voor AT',
   a11yTitleHideLabel: 'Verberg label voor AT',
   reuseSuccess: ':title is met succes geïmporteerd van de H5P Hub.',
-  deleteAuthorTitle: 'Deleting author',
-  deleteAuthorChangeLogTitle: 'Deleting changelog',
-  confirm: 'Confirm'
 };
diff --git a/language/nn.js b/language/nn.js
index 9daa6a540877d373d4219b50920d9c125bdf8ba7..59a3b8adc18c3d17fb034e8e9cc1c6de441d05ce 100644
--- a/language/nn.js
+++ b/language/nn.js
@@ -217,7 +217,4 @@ H5PEditor.language.core = {
   a11yTitleShowLabel: 'Show label for AT',
   a11yTitleHideLabel: 'Hide label for AT',
   reuseSuccess: ':title was successfully imported from the H5P Hub.',
-  deleteAuthorTitle: 'Deleting author',
-  deleteAuthorChangeLogTitle: 'Deleting changelog',
-  confirm: 'Confirm'
 };
diff --git a/language/pl.js b/language/pl.js
index a342c05bbd078bedc05c9ca5c26884bd04b44b73..e70457eaca369b9c5d5eef20d60a2bde621d8ac3 100644
--- a/language/pl.js
+++ b/language/pl.js
@@ -217,7 +217,4 @@ H5PEditor.language.core = {
   a11yTitleShowLabel: 'Show label for AT',
   a11yTitleHideLabel: 'Hide label for AT',
   reuseSuccess: ':title was successfully imported from the H5P Hub.',
-  deleteAuthorTitle: 'Deleting author',
-  deleteAuthorChangeLogTitle: 'Deleting changelog',
-  confirm: 'Confirm'
 };
diff --git a/language/pt-br.js b/language/pt-br.js
index d24b775f7cc0d628b721ce41e7ebccce4f0e0f3c..bcede23d2c3497d22d43d4f7dc844c65be3e68b9 100644
--- a/language/pt-br.js
+++ b/language/pt-br.js
@@ -217,7 +217,4 @@ H5PEditor.language.core = {
   a11yTitleShowLabel: 'Show label for AT',
   a11yTitleHideLabel: 'Hide label for AT',
   reuseSuccess: ':title was successfully imported from the H5P Hub.',
-  deleteAuthorTitle: 'Deleting author',
-  deleteAuthorChangeLogTitle: 'Deleting changelog',
-  confirm: 'Confirm'
 };
diff --git a/language/pt.js b/language/pt.js
index b90d8aa7223830b614b88449fb0fa45b833ce9de..730a4c4e181f2387557f01cc301fdd32d2b6595d 100644
--- a/language/pt.js
+++ b/language/pt.js
@@ -216,8 +216,5 @@ H5PEditor.language.core = {
   exitFullscreenButtonLabel: 'Sair de ecrã inteiro',
   a11yTitleShowLabel: 'Show label for AT',
   a11yTitleHideLabel: 'Hide label for AT',
-  reuseSuccess: ':title was successfully imported from the H5P Hub.',
-  deleteAuthorTitle: 'Deleting author',
-  deleteAuthorChangeLogTitle: 'Deleting changelog',
-  confirm: 'Confirm'
+  reuseSuccess: ':title was successfully imported from the H5P Hub.'
 };
diff --git a/language/ru.js b/language/ru.js
index 2c224321448f0c246ce88c3b040631657bea2b94..5b7cbc46d9620826a8784b08a32c445d03a1ff29 100644
--- a/language/ru.js
+++ b/language/ru.js
@@ -219,7 +219,4 @@ H5PEditor.language.core = {
   a11yTitleShowLabel: 'Show label for AT',
   a11yTitleHideLabel: 'Hide label for AT',
   reuseSuccess: ':title was successfully imported from the H5P Hub.',
-  deleteAuthorTitle: 'Deleting author',
-  deleteAuthorChangeLogTitle: 'Deleting changelog',
-  confirm: 'Confirm'
 };
diff --git a/language/sl.js b/language/sl.js
index 4ff9d2b743836e8b570848ea5ac74825ceb59c02..8d1b617ba3d4d3eae1c2fd70e33ef9251bdf138d 100644
--- a/language/sl.js
+++ b/language/sl.js
@@ -217,7 +217,4 @@ H5PEditor.language.core = {
   enterFullscreenButtonLabel: 'Vklopi celozaslonski način',
   exitFullscreenButtonLabel: 'Izklopi celozaslonski način',
   reuseSuccess: ':title was successfully imported from the H5P Hub.',
-  deleteAuthorTitle: 'Deleting author',
-  deleteAuthorChangeLogTitle: 'Deleting changelog',
-  confirm: 'Confirm'
 };
diff --git a/language/sv.js b/language/sv.js
index 9e5e7c24e87a0bd21555aab5b5fccb01132872b8..f2bc093911e7987a85ff640e1c6e80ad2c6a28b0 100644
--- a/language/sv.js
+++ b/language/sv.js
@@ -217,7 +217,4 @@ H5PEditor.language.core = {
   enterFullscreenButtonLabel: 'Helskärmsläge',
   exitFullscreenButtonLabel: 'Avsluta helskärm',
   reuseSuccess: ':title was successfully imported from the H5P Hub.',
-  deleteAuthorTitle: 'Deleting author',
-  deleteAuthorChangeLogTitle: 'Deleting changelog',
-  confirm: 'Confirm'
 };
diff --git a/language/tr.js b/language/tr.js
index bbdb592b7ea57709bce750ccbdc4a4aa9b4f4d56..d5c43c25b9f53fe30d9d32cd2777843a371f5642 100644
--- a/language/tr.js
+++ b/language/tr.js
@@ -216,8 +216,5 @@ H5PEditor.language.core = {
   exitFullscreenButtonLabel: 'Tam ekrandan çık',
   a11yTitleShowLabel: 'Show label for AT',
   a11yTitleHideLabel: 'Hide label for AT',
-  reuseSuccess: ':title was successfully imported from the H5P Hub.',
-  deleteAuthorTitle: 'Deleting author',
-  deleteAuthorChangeLogTitle: 'Deleting changelog',
-  confirm: 'Confirm'
+  reuseSuccess: ':title was successfully imported from the H5P Hub.'
 };
diff --git a/language/zh-cn.js b/language/zh-cn.js
index dc77515bbce5db8ae55b10b9002083fad48678ea..a5f2cf6669a115dd1d5dac068cf7459ef64f7e8d 100644
--- a/language/zh-cn.js
+++ b/language/zh-cn.js
@@ -217,7 +217,4 @@ H5PEditor.language.core = {
   enterFullscreenButtonLabel: '进入全屏',
   exitFullscreenButtonLabel: '退出全屏',
   reuseSuccess: ':title was successfully imported from the H5P Hub.',
-  deleteAuthorTitle: 'Deleting author',
-  deleteAuthorChangeLogTitle: 'Deleting changelog',
-  confirm: 'Confirm'
 };
diff --git a/scripts/h5peditor-metadata-author-widget.js b/scripts/h5peditor-metadata-author-widget.js
index 28193994877e735c7a3a15cdf7fd56c89b755f43..3cdc6dcc4b87f71a6710d036762c15ad9ef5fc10 100644
--- a/scripts/h5peditor-metadata-author-widget.js
+++ b/scripts/h5peditor-metadata-author-widget.js
@@ -140,12 +140,9 @@ H5PEditor.metadataAuthorWidget = function (semantics, params, $wrapper, parent)
         type: 'button',
         'class': 'h5p-metadata-icon-button',
         click: function () {
-          showConfirmationDialog({
-            headerText: H5PEditor.t('core', 'deleteAuthorTitle'),
-            dialogText: H5PEditor.t('core', 'confirmRemoveAuthor'),
-            cancelText: H5PEditor.t('core', 'cancel'),
-            confirmText: H5PEditor.t('core', 'confirm'),
-          }, handleFormDiaologActions);
+          if (confirm(H5PEditor.t('core', 'confirmRemoveAuthor'))) {
+            removeAuthor(author);
+          }
         }
       }).appendTo(listItem);
 
@@ -155,40 +152,6 @@ H5PEditor.metadataAuthorWidget = function (semantics, params, $wrapper, parent)
     wrapper.append(authorList);
   }
 
-  /**
-   * Callback confirm/cancel action
-   * @param {boolean} [confirmFlag] Which button is clicked
-   */
-  function handleFormDiaologActions(confirmFlag) {
-    if (confirmFlag) {
-      removeAuthor(author);
-    }
-  }
-
-  /**
-   * Add confirmation dialog to button.
-   * @param {object} dialogOptions Dialog options.
-   * @param {function} handleActions Handle both actions Confirmed and Canceled.
-   */
-  function showConfirmationDialog(dialogOptions, handleActions) {
-    const confirmationDialog = new H5P.ConfirmationDialog(dialogOptions)
-    .appendTo(document.body);
-
-    confirmationDialog.on('confirmed', () => {
-      if (handleActions) {
-        handleActions(true);
-      }
-    });
-
-    confirmationDialog.on('canceled', () => {
-      if (handleActions) {
-        handleActions(false);
-      }
-    });
-
-    confirmationDialog.show();
-  }
-
   return {
     addAuthor: addAuthor,
     addDefaultAuthor: addDefaultAuthor
diff --git a/scripts/h5peditor-metadata-changelog-widget.js b/scripts/h5peditor-metadata-changelog-widget.js
index b65772ce3d99cac5924fb80f806bc62b878528aa..e664dbe281abd67937490416d52661e06612a6c0 100644
--- a/scripts/h5peditor-metadata-changelog-widget.js
+++ b/scripts/h5peditor-metadata-changelog-widget.js
@@ -169,12 +169,11 @@ H5PEditor.metadataChangelogWidget = function (semantics, params, $wrapper, paren
 
         logButtons.find('.h5p-metadata-delete').click(function () {
           // Ask for confirmation
-          showConfirmationDialog({
-            headerText: H5PEditor.t('core', 'deleteAuthorChangeLogTitle'),
-            dialogText: H5PEditor.t('core', 'confirmDeleteChangeLog'),
-            cancelText: H5PEditor.t('core', 'cancel'),
-            confirmText: H5PEditor.t('core', 'confirm'),
-          }, handleFormDiaologActions);
+          if (confirm(H5PEditor.t('core', 'confirmDeleteChangeLog'))) {
+            var wrapper = $(this).closest('.h5p-metadata-log');
+            var index = $(wrapper).data('index');
+            deleteLog(index);
+          }
         });
 
         logButtons.find('.h5p-metadata-edit').click(function () {
@@ -197,18 +196,6 @@ H5PEditor.metadataChangelogWidget = function (semantics, params, $wrapper, paren
     }
   }
 
-  /**
-   * Callback confirm/cancel action
-   * @param {boolean} [confirmFlag] Which button is clicked
-   */
-   function handleFormDiaologActions (confirmFlag) {
-    if (confirmFlag) {
-      var wrapper = $(this).closest('.h5p-metadata-log');
-      var index = $(wrapper).data('index');
-      deleteLog(index);
-    }
-  }
-
   function editLog(index) {
     state.editing = true;
     state.currentLog = index;
@@ -284,28 +271,4 @@ H5PEditor.metadataChangelogWidget = function (semantics, params, $wrapper, paren
       async: true
     });
   }
-  
-  /**
-   * Add confirmation dialog to button.
-   * @param {object} dialogOptions Dialog options.
-   * @param {function} handleActions Handle both actions Confirmed and Canceled.
-   */
-  function showConfirmationDialog (dialogOptions, handleActions) {
-    const confirmationDialog = new H5P.ConfirmationDialog(dialogOptions)
-    .appendTo(document.body);
-
-    confirmationDialog.on('confirmed', () => {
-      if (handleActions) {
-        handleActions(true);
-      }
-    });
-
-    confirmationDialog.on('canceled', () => {
-      if (handleActions) {
-        handleActions(false);
-      }
-    });
-
-    confirmationDialog.show();
-  }
 };