diff --git a/index.html b/index.html
index 5e5b92b2..6a82941d 100644
--- a/index.html
+++ b/index.html
@@ -24,6 +24,7 @@
     <noscript>To use Pleroma, please enable JavaScript.</noscript>
     <script>if('serviceWorker' in navigator){navigator.serviceWorker.register('/static/service-worker.js');} else {console.log("Service worker is not supported");}</script>
     <div id="app"></div>
+    <div id="modal"></div>
     <!-- built files will be auto injected -->
   </body>
 </html>
diff --git a/src/App.vue b/src/App.vue
index c3cf33f8..ed4f318e 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -59,7 +59,7 @@
     <UserReportingModal />
     <PostStatusModal />
     <SettingsModal />
-    <div id="modal" />
+    <UpdateNotification />
     <GlobalNoticeList />
   </div>
 </template>
diff --git a/src/components/account_actions/account_actions.js b/src/components/account_actions/account_actions.js
index 8fe0fe5e..c227c409 100644
--- a/src/components/account_actions/account_actions.js
+++ b/src/components/account_actions/account_actions.js
@@ -1,6 +1,8 @@
 import ProgressButton from '../progress_button/progress_button.vue'
 import Popover from '../popover/popover.vue'
+import ConfirmModal from '../confirm_modal/confirm_modal.vue'
 import { library } from '@fortawesome/fontawesome-svg-core'
+import { mapState } from 'vuex'
 import {
   faEllipsisV
 } from '@fortawesome/free-solid-svg-icons'
@@ -14,13 +16,22 @@ const AccountActions = {
     'user', 'relationship'
   ],
   data () {
-    return { }
+    return {
+      showingConfirmBlock: false
+    }
   },
   components: {
     ProgressButton,
-    Popover
+    Popover,
+    ConfirmModal
   },
   methods: {
+    showConfirmBlock () {
+      this.showingConfirmBlock = true
+    },
+    hideConfirmBlock () {
+      this.showingConfirmBlock = false
+    },
     showRepeats () {
       this.$store.dispatch('showReblogs', this.user.id)
     },
@@ -28,7 +39,15 @@ const AccountActions = {
       this.$store.dispatch('hideReblogs', this.user.id)
     },
     blockUser () {
+      if (!this.shouldConfirmBlock) {
+        this.doBlockUser()
+      } else {
+        this.showConfirmBlock()
+      }
+    },
+    doBlockUser () {
       this.$store.dispatch('blockUser', this.user.id)
+      this.hideConfirmBlock()
     },
     unblockUser () {
       this.$store.dispatch('unblockUser', this.user.id)
@@ -36,6 +55,14 @@ const AccountActions = {
     reportUser () {
       this.$store.dispatch('openUserReportingModal', { userId: this.user.id })
     }
+  },
+  computed: {
+    shouldConfirmBlock () {
+      return this.$store.getters.mergedConfig.modalOnBlock
+    },
+    ...mapState({
+      pleromaChatMessagesAvailable: state => state.instance.pleromaChatMessagesAvailable
+    })
   }
 }
 
diff --git a/src/components/account_actions/account_actions.vue b/src/components/account_actions/account_actions.vue
index afd8bb1b..3e65aa62 100644
--- a/src/components/account_actions/account_actions.vue
+++ b/src/components/account_actions/account_actions.vue
@@ -59,6 +59,27 @@
         </button>
       </template>
     </Popover>
+    <teleport to="#modal">
+      <confirm-modal
+        v-if="showingConfirmBlock"
+        :title="$t('user_card.block_confirm_title')"
+        :confirm-text="$t('user_card.block_confirm_accept_button')"
+        :cancel-text="$t('user_card.block_confirm_cancel_button')"
+        @accepted="doBlockUser"
+        @cancelled="hideConfirmBlock"
+      >
+        <i18n-t
+          keypath="user_card.block_confirm"
+          tag="span"
+        >
+          <template v-slot:user>
+            <span
+              v-text="user.screen_name_ui"
+            />
+          </template>
+        </i18n-t>
+      </confirm-modal>
+    </teleport>
   </div>
 </template>
 
diff --git a/src/components/confirm_modal/confirm_modal.js b/src/components/confirm_modal/confirm_modal.js
new file mode 100644
index 00000000..96ddc118
--- /dev/null
+++ b/src/components/confirm_modal/confirm_modal.js
@@ -0,0 +1,37 @@
+import DialogModal from '../dialog_modal/dialog_modal.vue'
+
+/**
+ * This component emits the following events:
+ * cancelled, emitted when the action should not be performed;
+ * accepted, emitted when the action should be performed;
+ *
+ * The caller should close this dialog after receiving any of the two events.
+ */
+const ConfirmModal = {
+  components: {
+    DialogModal
+  },
+  props: {
+    title: {
+      type: String
+    },
+    cancelText: {
+      type: String
+    },
+    confirmText: {
+      type: String
+    }
+  },
+  computed: {
+  },
+  methods: {
+    onCancel () {
+      this.$emit('cancelled')
+    },
+    onAccept () {
+      this.$emit('accepted')
+    }
+  }
+}
+
+export default ConfirmModal
diff --git a/src/components/confirm_modal/confirm_modal.vue b/src/components/confirm_modal/confirm_modal.vue
new file mode 100644
index 00000000..5783c794
--- /dev/null
+++ b/src/components/confirm_modal/confirm_modal.vue
@@ -0,0 +1,39 @@
+<template>
+  <dialog-modal
+    v-body-scroll-lock="true"
+    class="confirm-modal"
+    :on-cancel="onCancel"
+  >
+    <template #header>
+      <span v-text="title" />
+    </template>
+
+    <slot />
+
+    <template #footer>
+      <button
+        class="btn button-default"
+        @click.prevent="onCancel"
+        v-text="cancelText"
+      />
+      <button
+        class="btn button-default button-positive"
+        @click.prevent="onAccept"
+        v-text="confirmText"
+      />
+    </template>
+  </dialog-modal>
+</template>
+
+<style lang="scss" scoped>
+@import '../../_variables';
+
+.confirm-modal {
+  .button-positive {
+    border: 3px solid var(--accent, $fallback--link);
+    border-radius: var(--btnRadius, $fallback--btnRadius);
+  }
+}
+</style>
+
+<script src="./confirm_modal.js"></script>
diff --git a/src/components/desktop_nav/desktop_nav.js b/src/components/desktop_nav/desktop_nav.js
index 9bcaf3f4..00acd903 100644
--- a/src/components/desktop_nav/desktop_nav.js
+++ b/src/components/desktop_nav/desktop_nav.js
@@ -1,4 +1,5 @@
 import SearchBar from 'components/search_bar/search_bar.vue'
+import ConfirmModal from '../confirm_modal/confirm_modal.vue'
 import { library } from '@fortawesome/fontawesome-svg-core'
 import {
   faSignInAlt,
@@ -40,7 +41,8 @@ library.add(
 
 export default {
   components: {
-    SearchBar
+    SearchBar,
+    ConfirmModal
   },
   data: () => ({
     searchBarHidden: true,
@@ -50,7 +52,8 @@ export default {
         window.CSS.supports('-moz-mask-size', 'contain') ||
         window.CSS.supports('-ms-mask-size', 'contain') ||
         window.CSS.supports('-o-mask-size', 'contain')
-    )
+    ),
+    showingConfirmLogout: false
   }),
   computed: {
     enableMask () { return this.supportsMask && this.$store.state.instance.logoMask },
@@ -94,7 +97,10 @@ export default {
     hideSitename () { return this.$store.state.instance.hideSitename },
     logoLeft () { return this.$store.state.instance.logoLeft },
     currentUser () { return this.$store.state.users.currentUser },
-    privateMode () { return this.$store.state.instance.private }
+    privateMode () { return this.$store.state.instance.private },
+    shouldConfirmLogout () {
+      return this.$store.getters.mergedConfig.modalOnLogout
+    }
   },
   methods: {
     scrollToTop () {
diff --git a/src/components/desktop_nav/desktop_nav.vue b/src/components/desktop_nav/desktop_nav.vue
index 6370b004..fb7190a9 100644
--- a/src/components/desktop_nav/desktop_nav.vue
+++ b/src/components/desktop_nav/desktop_nav.vue
@@ -166,6 +166,18 @@
         </a>
       </div>
     </div>
+    <teleport to="#modal">
+      <confirm-modal
+        v-if="showingConfirmLogout"
+        :title="$t('login.logout_confirm_title')"
+        :confirm-text="$t('login.logout_confirm_accept_button')"
+        :cancel-text="$t('login.logout_confirm_cancel_button')"
+        @accepted="doLogout"
+        @cancelled="hideConfirmLogout"
+      >
+        {{ $t('login.logout_confirm') }}
+      </confirm-modal>
+    </teleport>
   </nav>
 </template>
 <script src="./desktop_nav.js"></script>
diff --git a/src/components/dialog_modal/dialog_modal.vue b/src/components/dialog_modal/dialog_modal.vue
index 06b270c3..1a42b0e5 100644
--- a/src/components/dialog_modal/dialog_modal.vue
+++ b/src/components/dialog_modal/dialog_modal.vue
@@ -39,7 +39,7 @@
     right: 0;
     top: 0;
     background: rgba(27,31,35,.5);
-    z-index: 99;
+    z-index: 2000;
   }
 }
 
@@ -51,7 +51,7 @@
   margin: 15vh auto;
   position: fixed;
   transform: translateX(-50%);
-  z-index: 999;
+  z-index: 2001;
   cursor: default;
   display: block;
   background-color: $fallback--bg;
diff --git a/src/components/extra_buttons/extra_buttons.js b/src/components/extra_buttons/extra_buttons.js
index 1ef3db51..d56ea11c 100644
--- a/src/components/extra_buttons/extra_buttons.js
+++ b/src/components/extra_buttons/extra_buttons.js
@@ -1,4 +1,5 @@
 import Popover from '../popover/popover.vue'
+import ConfirmModal from '../confirm_modal/confirm_modal.vue'
 import { library } from '@fortawesome/fontawesome-svg-core'
 import {
   faEllipsisH,
@@ -27,15 +28,35 @@ library.add(
 )
 
 const ExtraButtons = {
-  props: [ 'status' ],
-  components: { Popover },
+  props: ['status'],
+  components: {
+    Popover,
+    ConfirmModal
+  },
+  data () {
+    return {
+      expanded: false,
+      showingDeleteDialog: false
+    }
+  },
   methods: {
     deleteStatus () {
-      const confirmed = window.confirm(this.$t('status.delete_confirm'))
-      if (confirmed) {
-        this.$store.dispatch('deleteStatus', { id: this.status.id })
+      if (this.shouldConfirmDelete) {
+        this.showDeleteStatusConfirmDialog()
+      } else {
+        this.doDeleteStatus()
       }
     },
+    doDeleteStatus () {
+      this.$store.dispatch('deleteStatus', { id: this.status.id })
+      this.hideDeleteStatusConfirmDialog()
+    },
+    showDeleteStatusConfirmDialog () {
+      this.showingDeleteDialog = true
+    },
+    hideDeleteStatusConfirmDialog () {
+      this.showingDeleteDialog = false
+    },
     pinStatus () {
       this.$store.dispatch('pinStatus', this.status.id)
         .then(() => this.$emit('onSuccess'))
@@ -93,6 +114,9 @@ const ExtraButtons = {
     },
     statusLink () {
       return `${this.$store.state.instance.server}${this.$router.resolve({ name: 'conversation', params: { id: this.status.id } }).href}`
+    },
+    shouldConfirmDelete () {
+      return this.$store.getters.mergedConfig.modalOnDelete
     }
   }
 }
diff --git a/src/components/extra_buttons/extra_buttons.vue b/src/components/extra_buttons/extra_buttons.vue
index d9301a60..43510bec 100644
--- a/src/components/extra_buttons/extra_buttons.vue
+++ b/src/components/extra_buttons/extra_buttons.vue
@@ -136,6 +136,18 @@
           icon="ellipsis-h"
         />
       </button>
+      <teleport to="#modal">
+        <ConfirmModal
+          v-if="showingDeleteDialog"
+          :title="$t('status.delete_confirm_title')"
+          :cancel-text="$t('status.delete_confirm_cancel_button')"
+          :confirm-text="$t('status.delete_confirm_accept_button')"
+          @cancelled="hideDeleteStatusConfirmDialog"
+          @accepted="doDeleteStatus"
+        >
+          {{ $t('status.delete_confirm') }}
+        </ConfirmModal>
+      </teleport>
     </template>
   </Popover>
 </template>
diff --git a/src/components/follow_button/follow_button.js b/src/components/follow_button/follow_button.js
index 3edbcb86..443aa9bc 100644
--- a/src/components/follow_button/follow_button.js
+++ b/src/components/follow_button/follow_button.js
@@ -1,12 +1,20 @@
+import ConfirmModal from '../confirm_modal/confirm_modal.vue'
 import { requestFollow, requestUnfollow } from '../../services/follow_manipulate/follow_manipulate'
 export default {
   props: ['relationship', 'user', 'labelFollowing', 'buttonClass'],
+  components: {
+    ConfirmModal
+  },
   data () {
     return {
-      inProgress: false
+      inProgress: false,
+      showingConfirmUnfollow: false
     }
   },
   computed: {
+    shouldConfirmUnfollow () {
+      return this.$store.getters.mergedConfig.modalOnUnfollow
+    },
     isPressed () {
       return this.inProgress || this.relationship.following
     },
@@ -35,6 +43,12 @@ export default {
     }
   },
   methods: {
+    showConfirmUnfollow () {
+      this.showingConfirmUnfollow = true
+    },
+    hideConfirmUnfollow () {
+      this.showingConfirmUnfollow = false
+    },
     onClick () {
       this.relationship.following || this.relationship.requested ? this.unfollow() : this.follow()
     },
@@ -45,12 +59,21 @@ export default {
       })
     },
     unfollow () {
+      if (this.shouldConfirmUnfollow) {
+        this.showConfirmUnfollow()
+      } else {
+        this.doUnfollow()
+      }
+    },
+    doUnfollow () {
       const store = this.$store
       this.inProgress = true
       requestUnfollow(this.relationship.id, store).then(() => {
         this.inProgress = false
         store.commit('removeStatus', { timeline: 'friends', userId: this.relationship.id })
       })
+
+      this.hideConfirmUnfollow()
     }
   }
 }
diff --git a/src/components/follow_button/follow_button.vue b/src/components/follow_button/follow_button.vue
index 965d5256..e421c15b 100644
--- a/src/components/follow_button/follow_button.vue
+++ b/src/components/follow_button/follow_button.vue
@@ -7,6 +7,27 @@
     @click="onClick"
   >
     {{ label }}
+    <teleport to="#modal">
+      <confirm-modal
+        v-if="showingConfirmUnfollow"
+        :title="$t('user_card.unfollow_confirm_title')"
+        :confirm-text="$t('user_card.unfollow_confirm_accept_button')"
+        :cancel-text="$t('user_card.unfollow_confirm_cancel_button')"
+        @accepted="doUnfollow"
+        @cancelled="hideConfirmUnfollow"
+      >
+        <i18n-t
+          keypath="user_card.unfollow_confirm"
+          tag="span"
+        >
+          <template #user>
+            <span
+              v-text="user.screen_name_ui"
+            />
+          </template>
+        </i18n-t>
+      </confirm-modal>
+    </teleport>
   </button>
 </template>
 
diff --git a/src/components/follow_request_card/follow_request_card.js b/src/components/follow_request_card/follow_request_card.js
index cbd75311..b0873bb1 100644
--- a/src/components/follow_request_card/follow_request_card.js
+++ b/src/components/follow_request_card/follow_request_card.js
@@ -1,10 +1,18 @@
 import BasicUserCard from '../basic_user_card/basic_user_card.vue'
+import ConfirmModal from '../confirm_modal/confirm_modal.vue'
 import { notificationsFromStore } from '../../services/notification_utils/notification_utils.js'
 
 const FollowRequestCard = {
   props: ['user'],
   components: {
-    BasicUserCard
+    BasicUserCard,
+    ConfirmModal
+  },
+  data () {
+    return {
+      showingApproveConfirmDialog: false,
+      showingDenyConfirmDialog: false
+    }
   },
   methods: {
     findFollowRequestNotificationId () {
@@ -13,7 +21,26 @@ const FollowRequestCard = {
       )
       return notif && notif.id
     },
+    showApproveConfirmDialog () {
+      this.showingApproveConfirmDialog = true
+    },
+    hideApproveConfirmDialog () {
+      this.showingApproveConfirmDialog = false
+    },
+    showDenyConfirmDialog () {
+      this.showingDenyConfirmDialog = true
+    },
+    hideDenyConfirmDialog () {
+      this.showingDenyConfirmDialog = false
+    },
     approveUser () {
+      if (this.shouldConfirmApprove) {
+        this.showApproveConfirmDialog()
+      } else {
+        this.doApprove()
+      }
+    },
+    doApprove () {
       this.$store.state.api.backendInteractor.approveUser({ id: this.user.id })
       this.$store.dispatch('removeFollowRequest', this.user)
 
@@ -25,14 +52,34 @@ const FollowRequestCard = {
           notification.type = 'follow'
         }
       })
+      this.hideApproveConfirmDialog()
     },
     denyUser () {
+      if (this.shouldConfirmDeny) {
+        this.showDenyConfirmDialog()
+      } else {
+        this.doDeny()
+      }
+    },
+    doDeny () {
       const notifId = this.findFollowRequestNotificationId()
       this.$store.state.api.backendInteractor.denyUser({ id: this.user.id })
         .then(() => {
           this.$store.dispatch('dismissNotificationLocal', { id: notifId })
           this.$store.dispatch('removeFollowRequest', this.user)
         })
+      this.hideDenyConfirmDialog()
+    }
+  },
+  computed: {
+    mergedConfig () {
+      return this.$store.getters.mergedConfig
+    },
+    shouldConfirmApprove () {
+      return this.mergedConfig.modalOnApproveFollow
+    },
+    shouldConfirmDeny () {
+      return this.mergedConfig.modalOnDenyFollow
     }
   }
 }
diff --git a/src/components/follow_request_card/follow_request_card.vue b/src/components/follow_request_card/follow_request_card.vue
index 1b12ba4b..835471e7 100644
--- a/src/components/follow_request_card/follow_request_card.vue
+++ b/src/components/follow_request_card/follow_request_card.vue
@@ -14,6 +14,28 @@
         {{ $t('user_card.deny') }}
       </button>
     </div>
+    <teleport to="#modal">
+      <confirm-modal
+        v-if="showingApproveConfirmDialog"
+        :title="$t('user_card.approve_confirm_title')"
+        :confirm-text="$t('user_card.approve_confirm_accept_button')"
+        :cancel-text="$t('user_card.approve_confirm_cancel_button')"
+        @accepted="doApprove"
+        @cancelled="hideApproveConfirmDialog"
+      >
+        {{ $t('user_card.approve_confirm', { user: user.screen_name_ui }) }}
+      </confirm-modal>
+      <confirm-modal
+        v-if="showingDenyConfirmDialog"
+        :title="$t('user_card.deny_confirm_title')"
+        :confirm-text="$t('user_card.deny_confirm_accept_button')"
+        :cancel-text="$t('user_card.deny_confirm_cancel_button')"
+        @accepted="doDeny"
+        @cancelled="hideDenyConfirmDialog"
+      >
+        {{ $t('user_card.deny_confirm', { user: user.screen_name_ui }) }}
+      </confirm-modal>
+    </teleport>
   </basic-user-card>
 </template>
 
diff --git a/src/components/mobile_nav/mobile_nav.js b/src/components/mobile_nav/mobile_nav.js
index 7a356921..bba520d4 100644
--- a/src/components/mobile_nav/mobile_nav.js
+++ b/src/components/mobile_nav/mobile_nav.js
@@ -1,7 +1,9 @@
 import SideDrawer from '../side_drawer/side_drawer.vue'
 import Notifications from '../notifications/notifications.vue'
+import ConfirmModal from '../confirm_modal/confirm_modal.vue'
 import { unseenNotificationsFromStore } from '../../services/notification_utils/notification_utils'
 import GestureService from '../../services/gesture_service/gesture_service'
+import { mapGetters } from 'vuex'
 import { library } from '@fortawesome/fontawesome-svg-core'
 import {
   faTimes,
@@ -18,11 +20,13 @@ library.add(
 const MobileNav = {
   components: {
     SideDrawer,
-    Notifications
+    Notifications,
+    ConfirmModal
   },
   data: () => ({
     notificationsCloseGesture: undefined,
-    notificationsOpen: false
+    notificationsOpen: false,
+    showingConfirmLogout: false
   }),
   created () {
     this.notificationsCloseGesture = GestureService.swipeGesture(
@@ -47,7 +51,11 @@ const MobileNav = {
     hideSiteName () {
       return this.mergedConfig.hideSiteName
     },
-    sitename () { return this.$store.state.instance.name }
+    sitename () { return this.$store.state.instance.name },
+    shouldConfirmLogout () {
+      return this.$store.getters.mergedConfig.modalOnLogout
+    },
+    ...mapGetters(['unreadChatCount'])
   },
   methods: {
     toggleMobileSidebar () {
@@ -73,9 +81,23 @@ const MobileNav = {
     scrollToTop () {
       window.scrollTo(0, 0)
     },
+    showConfirmLogout () {
+      this.showingConfirmLogout = true
+    },
+    hideConfirmLogout () {
+      this.showingConfirmLogout = false
+    },
     logout () {
+      if (!this.shouldConfirmLogout) {
+        this.doLogout()
+      } else {
+        this.showConfirmLogout()
+      }
+    },
+    doLogout () {
       this.$router.replace('/main/public')
       this.$store.dispatch('logout')
+      this.hideConfirmLogout()
     },
     markNotificationsAsSeen () {
       // this.$refs.notifications.markAsSeen()
diff --git a/src/components/mobile_nav/mobile_nav.vue b/src/components/mobile_nav/mobile_nav.vue
index 308c8d57..e6a8e694 100644
--- a/src/components/mobile_nav/mobile_nav.vue
+++ b/src/components/mobile_nav/mobile_nav.vue
@@ -76,6 +76,18 @@
       ref="sideDrawer"
       :logout="logout"
     />
+    <teleport to="#modal">
+      <confirm-modal
+        v-if="showingConfirmLogout"
+        :title="$t('login.logout_confirm_title')"
+        :confirm-text="$t('login.logout_confirm_accept_button')"
+        :cancel-text="$t('login.logout_confirm_cancel_button')"
+        @accepted="doLogout"
+        @cancelled="hideConfirmLogout"
+      >
+        {{ $t('login.logout_confirm') }}
+      </confirm-modal>
+    </teleport>
   </div>
 </template>
 
@@ -206,6 +218,14 @@
       }
     }
   }
+  .confirm-modal.dark-overlay {
+    &::before {
+      z-index: 3000;
+    }
+    .dialog-modal.panel {
+      z-index: 3001;
+    }
+  }
 }
 
 </style>
diff --git a/src/components/notification/notification.js b/src/components/notification/notification.js
index 398bb7a9..af612ccb 100644
--- a/src/components/notification/notification.js
+++ b/src/components/notification/notification.js
@@ -5,6 +5,7 @@ import UserAvatar from '../user_avatar/user_avatar.vue'
 import UserCard from '../user_card/user_card.vue'
 import Timeago from '../timeago/timeago.vue'
 import RichContent from 'src/components/rich_content/rich_content.jsx'
+import ConfirmModal from '../confirm_modal/confirm_modal.vue'
 import { isStatusNotification } from '../../services/notification_utils/notification_utils.js'
 import { highlightClass, highlightStyle } from '../../services/user_highlighter/user_highlighter.js'
 import generateProfileLink from 'src/services/user_profile_link_generator/user_profile_link_generator'
@@ -36,7 +37,9 @@ const Notification = {
     return {
       userExpanded: false,
       betterShadow: this.$store.state.interface.browserSupport.cssFilter,
-      unmuted: false
+      unmuted: false,
+      showingApproveConfirmDialog: false,
+      showingDenyConfirmDialog: false
     }
   },
   props: [ 'notification' ],
@@ -46,7 +49,8 @@ const Notification = {
     UserCard,
     Timeago,
     Status,
-    RichContent
+    RichContent,
+    ConfirmModal
   },
   methods: {
     toggleUserExpanded () {
@@ -61,7 +65,26 @@ const Notification = {
     toggleMute () {
       this.unmuted = !this.unmuted
     },
+    showApproveConfirmDialog () {
+      this.showingApproveConfirmDialog = true
+    },
+    hideApproveConfirmDialog () {
+      this.showingApproveConfirmDialog = false
+    },
+    showDenyConfirmDialog () {
+      this.showingDenyConfirmDialog = true
+    },
+    hideDenyConfirmDialog () {
+      this.showingDenyConfirmDialog = false
+    },
     approveUser () {
+      if (this.shouldConfirmApprove) {
+        this.showApproveConfirmDialog()
+      } else {
+        this.doApprove()
+      }
+    },
+    doApprove () {
       this.$store.state.api.backendInteractor.approveUser({ id: this.user.id })
       this.$store.dispatch('removeFollowRequest', this.user)
       this.$store.dispatch('markSingleNotificationAsSeen', { id: this.notification.id })
@@ -71,13 +94,22 @@ const Notification = {
           notification.type = 'follow'
         }
       })
+      this.hideApproveConfirmDialog()
     },
     denyUser () {
+      if (this.shouldConfirmDeny) {
+        this.showDenyConfirmDialog()
+      } else {
+        this.doDeny()
+      }
+    },
+    doDeny () {
       this.$store.state.api.backendInteractor.denyUser({ id: this.user.id })
         .then(() => {
           this.$store.dispatch('dismissNotificationLocal', { id: this.notification.id })
           this.$store.dispatch('removeFollowRequest', this.user)
         })
+      this.hideDenyConfirmDialog()
     }
   },
   computed: {
@@ -107,6 +139,15 @@ const Notification = {
     isStatusNotification () {
       return isStatusNotification(this.notification.type)
     },
+    mergedConfig () {
+      return this.$store.getters.mergedConfig
+    },
+    shouldConfirmApprove () {
+      return this.mergedConfig.modalOnApproveFollow
+    },
+    shouldConfirmDeny () {
+      return this.mergedConfig.modalOnDenyFollow
+    },
     ...mapState({
       currentUser: state => state.users.currentUser
     })
diff --git a/src/components/notification/notification.vue b/src/components/notification/notification.vue
index cc12bace..5ea6ab04 100644
--- a/src/components/notification/notification.vue
+++ b/src/components/notification/notification.vue
@@ -230,6 +230,28 @@
         </template>
       </div>
     </div>
+    <teleport to="#modal">
+      <confirm-modal
+        v-if="showingApproveConfirmDialog"
+        :title="$t('user_card.approve_confirm_title')"
+        :confirm-text="$t('user_card.approve_confirm_accept_button')"
+        :cancel-text="$t('user_card.approve_confirm_cancel_button')"
+        @accepted="doApprove"
+        @cancelled="hideApproveConfirmDialog"
+      >
+        {{ $t('user_card.approve_confirm', { user: user.screen_name_ui }) }}
+      </confirm-modal>
+      <confirm-modal
+        v-if="showingDenyConfirmDialog"
+        :title="$t('user_card.deny_confirm_title')"
+        :confirm-text="$t('user_card.deny_confirm_accept_button')"
+        :cancel-text="$t('user_card.deny_confirm_cancel_button')"
+        @accepted="doDeny"
+        @cancelled="hideDenyConfirmDialog"
+      >
+        {{ $t('user_card.deny_confirm', { user: user.screen_name_ui }) }}
+      </confirm-modal>
+    </teleport>
   </div>
 </template>
 
diff --git a/src/components/retweet_button/retweet_button.js b/src/components/retweet_button/retweet_button.js
index 4f71af0a..9dc4d091 100644
--- a/src/components/retweet_button/retweet_button.js
+++ b/src/components/retweet_button/retweet_button.js
@@ -1,3 +1,4 @@
+import ConfirmModal from '../confirm_modal/confirm_modal.vue'
 import { library } from '@fortawesome/fontawesome-svg-core'
 import { faRetweet } from '@fortawesome/free-solid-svg-icons'
 
@@ -5,13 +6,24 @@ library.add(faRetweet)
 
 const RetweetButton = {
   props: ['status', 'loggedIn', 'visibility'],
+  components: {
+    ConfirmModal
+  },
   data () {
     return {
-      animated: false
+      animated: false,
+      showingConfirmDialog: false
     }
   },
   methods: {
     retweet () {
+      if (!this.status.repeated && this.shouldConfirmRepeat) {
+        this.showConfirmDialog()
+      } else {
+        this.doRetweet()
+      }
+    },
+    doRetweet () {
       if (!this.status.repeated) {
         this.$store.dispatch('retweet', { id: this.status.id })
       } else {
@@ -21,6 +33,13 @@ const RetweetButton = {
       setTimeout(() => {
         this.animated = false
       }, 500)
+      this.hideConfirmDialog()
+    },
+    showConfirmDialog () {
+      this.showingConfirmDialog = true
+    },
+    hideConfirmDialog () {
+      this.showingConfirmDialog = false
     }
   },
   computed: {
@@ -29,6 +48,9 @@ const RetweetButton = {
     },
     mergedConfig () {
       return this.$store.getters.mergedConfig
+    },
+    shouldConfirmRepeat () {
+      return this.mergedConfig.modalOnRepeat
     }
   }
 }
diff --git a/src/components/retweet_button/retweet_button.vue b/src/components/retweet_button/retweet_button.vue
index e8a77e10..6bb7a283 100644
--- a/src/components/retweet_button/retweet_button.vue
+++ b/src/components/retweet_button/retweet_button.vue
@@ -33,6 +33,18 @@
     >
       {{ status.repeat_num }}
     </span>
+    <teleport to="#modal">
+      <confirm-modal
+        v-if="showingConfirmDialog"
+        :title="$t('status.repeat_confirm_title')"
+        :confirm-text="$t('status.repeat_confirm_accept_button')"
+        :cancel-text="$t('status.repeat_confirm_cancel_button')"
+        @accepted="doRetweet"
+        @cancelled="hideConfirmDialog"
+      >
+        {{ $t('status.repeat_confirm') }}
+      </confirm-modal>
+    </teleport>
   </div>
 </template>
 
diff --git a/src/components/settings_modal/tabs/general_tab.vue b/src/components/settings_modal/tabs/general_tab.vue
index 0655cdb4..465dabad 100644
--- a/src/components/settings_modal/tabs/general_tab.vue
+++ b/src/components/settings_modal/tabs/general_tab.vue
@@ -164,6 +164,77 @@
             {{ $t('settings.autohide_floating_post_button') }}
           </BooleanSetting>
         </li>
+        <li>
+          <h3>{{ $t('settings.columns') }}</h3>
+        </li>
+        <li>
+          <BooleanSetting path="disableStickyHeaders">
+            {{ $t('settings.disable_sticky_headers') }}
+          </BooleanSetting>
+        </li>
+        <li>
+          <BooleanSetting path="showScrollbars">
+            {{ $t('settings.show_scrollbars') }}
+          </BooleanSetting>
+        </li>
+        <li>
+          <BooleanSetting path="sidebarRight">
+            {{ $t('settings.right_sidebar') }}
+          </BooleanSetting>
+        </li>
+        <li>
+          <ChoiceSetting
+            v-if="user"
+            id="thirdColumnMode"
+            path="thirdColumnMode"
+            :options="thirdColumnModeOptions"
+          >
+            {{ $t('settings.third_column_mode') }}
+          </ChoiceSetting>
+        </li>
+        <li>
+          <h3>{{ $t('settings.confirmation_dialogs') }}</h3>
+        </li>
+        <li class="select-multiple">
+          <span class="label">{{ $t('settings.confirm_dialogs') }}</span>
+          <ul class="option-list">
+            <li>
+              <BooleanSetting path="modalOnRepeat">
+                {{ $t('settings.confirm_dialogs_repeat') }}
+              </BooleanSetting>
+            </li>
+            <li>
+              <BooleanSetting path="modalOnUnfollow">
+                {{ $t('settings.confirm_dialogs_unfollow') }}
+              </BooleanSetting>
+            </li>
+            <li>
+              <BooleanSetting path="modalOnBlock">
+                {{ $t('settings.confirm_dialogs_block') }}
+              </BooleanSetting>
+            </li>
+            <li>
+              <BooleanSetting path="modalOnMute">
+                {{ $t('settings.confirm_dialogs_mute') }}
+              </BooleanSetting>
+            </li>
+            <li>
+              <BooleanSetting path="modalOnDelete">
+                {{ $t('settings.confirm_dialogs_delete') }}
+              </BooleanSetting>
+            </li>
+            <li>
+              <BooleanSetting path="modalOnApproveFollow">
+                {{ $t('settings.confirm_dialogs_approve_follow') }}
+              </BooleanSetting>
+            </li>
+            <li>
+              <BooleanSetting path="modalOnDenyFollow">
+                {{ $t('settings.confirm_dialogs_deny_follow') }}
+              </BooleanSetting>
+            </li>
+          </ul>
+        </li>
       </ul>
     </div>
     <div class="setting-item">
diff --git a/src/components/user_card/user_card.js b/src/components/user_card/user_card.js
index db8931cf..3ca78467 100644
--- a/src/components/user_card/user_card.js
+++ b/src/components/user_card/user_card.js
@@ -6,6 +6,7 @@ import ModerationTools from '../moderation_tools/moderation_tools.vue'
 import AccountActions from '../account_actions/account_actions.vue'
 import Select from '../select/select.vue'
 import RichContent from 'src/components/rich_content/rich_content.jsx'
+import ConfirmModal from '../confirm_modal/confirm_modal.vue'
 import generateProfileLink from 'src/services/user_profile_link_generator/user_profile_link_generator'
 import { mapGetters } from 'vuex'
 import { library } from '@fortawesome/fontawesome-svg-core'
@@ -32,7 +33,8 @@ export default {
   data () {
     return {
       followRequestInProgress: false,
-      betterShadow: this.$store.state.interface.browserSupport.cssFilter
+      betterShadow: this.$store.state.interface.browserSupport.cssFilter,
+      showingConfirmMute: false
     }
   },
   created () {
@@ -112,6 +114,9 @@ export default {
     hideFollowersCount () {
       return this.isOtherUser && this.user.hide_followers_count
     },
+    shouldConfirmMute () {
+      return this.mergedConfig.modalOnMute
+    },
     ...mapGetters(['mergedConfig'])
   },
   components: {
@@ -122,14 +127,29 @@ export default {
     ProgressButton,
     FollowButton,
     Select,
-    RichContent
+    RichContent,
+    ConfirmModal
   },
   methods: {
     refetchRelationship () {
       return this.$store.dispatch('fetchUserRelationship', this.user.id)
     },
+    showConfirmMute () {
+      this.showingConfirmMute = true
+    },
+    hideConfirmMute () {
+      this.showingConfirmMute = false
+    },
     muteUser () {
+      if (!this.shouldConfirmMute) {
+        this.doMuteUser()
+      } else {
+        this.showConfirmMute()
+      }
+    },
+    doMuteUser () {
       this.$store.dispatch('muteUser', this.user.id)
+      this.hideConfirmMute()
     },
     unmuteUser () {
       this.$store.dispatch('unmuteUser', this.user.id)
diff --git a/src/components/user_card/user_card.vue b/src/components/user_card/user_card.vue
index 8e63e1a3..6060f98d 100644
--- a/src/components/user_card/user_card.vue
+++ b/src/components/user_card/user_card.vue
@@ -295,6 +295,27 @@
         :handle-links="true"
       />
     </div>
+    <teleport to="#modal">
+      <confirm-modal
+        v-if="showingConfirmMute"
+        :title="$t('user_card.mute_confirm_title')"
+        :confirm-text="$t('user_card.mute_confirm_accept_button')"
+        :cancel-text="$t('user_card.mute_confirm_cancel_button')"
+        @accepted="doMuteUser"
+        @cancelled="hideConfirmMute"
+      >
+        <i18n-t
+          keypath="user_card.mute_confirm"
+          tag="span"
+        >
+          <template #user>
+            <span
+              v-text="user.screen_name_ui"
+            />
+          </template>
+        </i18n-t>
+      </confirm-modal>
+    </teleport>
   </div>
 </template>
 
diff --git a/src/i18n/en.json b/src/i18n/en.json
index 21294c95..37effd0e 100644
--- a/src/i18n/en.json
+++ b/src/i18n/en.json
@@ -370,7 +370,17 @@
         "changed_password": "Password changed successfully!",
         "chatMessageRadius": "Chat message",
         "collapse_subject": "Collapse posts with subjects",
+        "columns": "Columns",
         "composing": "Composing",
+        "confirmation_dialogs": "Confirmation options",
+        "confirm_dialogs": "Require confirmation for:",
+        "confirm_dialogs_repeat": "Repeating a post",
+        "confirm_dialogs_unfollow": "Unfollowing someone",
+        "confirm_dialogs_block": "Blocking someone",
+        "confirm_dialogs_mute": "Muting someone",
+        "confirm_dialogs_delete": "Deleting a post",
+        "confirm_dialogs_approve_follow": "Accepting a follow request",
+        "confirm_dialogs_deny_follow": "Rejecting a follow request",
         "confirm_new_password": "Confirm new password",
         "current_avatar": "Your current avatar",
         "current_mascot": "Your current mascot",
@@ -849,10 +859,23 @@
     },
     "user_card": {
         "approve": "Approve",
+        "approve_confirm_title": "Approve follow request",
+        "approve_confirm": "Are you sure you want to let this user follow you?",
+        "approve_confirm_accept_button": "Yes, accept",
+        "approve_confirm_cancel_button": "No, cancel",
         "block": "Block",
+        "block_confirm": "Are you sure you want to block {user}?",
+        "block_confirm_title": "Block user",
+        "block_confirm_cancel_button": "No, don't block",
+        "block_confirm_accept_button": "Yes, block",
+        "block_progress": "Blocking…",
         "blocked": "Blocked!",
         "deactivated": "Deactivated",
         "deny": "Deny",
+        "deny_confirm_title": "Deny follow request",
+        "deny_confirm": "Are you sure you want to deny this user's follow request?",
+        "deny_confirm_accept_button": "Yes, deny",
+        "deny_confirm_cancel_button": "No, cancel",
         "edit_profile": "Edit profile",
         "favorites": "Favorites",
         "follow": "Follow",
@@ -870,6 +893,10 @@
         "mention": "Mention",
         "message": "Message",
         "mute": "Mute",
+        "mute_confirm": "Are you sure you want to mute {user}?",
+        "mute_confirm_title": "Mute user",
+        "mute_confirm_cancel_button": "No, don't mute",
+        "mute_confirm_accept_button": "Yes, mute",
         "muted": "Muted",
         "per_day": "per day",
         "remote_follow": "Remote follow",
@@ -880,6 +907,10 @@
         "unblock": "Unblock",
         "unblock_progress": "Unblocking…",
         "block_progress": "Blocking…",
+        "unfollow_confirm": "Are you sure you want to unfollow {user}?",
+        "unfollow_confirm_title": "Unfollow user",
+        "unfollow_confirm_cancel_button": "No, don't unfollow",
+        "unfollow_confirm_accept_button": "Yes, unfollow",
         "unmute": "Unmute",
         "unmute_progress": "Unmuting…",
         "mute_progress": "Muting…",
diff --git a/src/modules/config.js b/src/modules/config.js
index 8f60ac44..11850c11 100644
--- a/src/modules/config.js
+++ b/src/modules/config.js
@@ -80,6 +80,14 @@ export const defaultState = {
   minimalScopesMode: undefined, // instance default
   // This hides statuses filtered via a word filter
   hideFilteredStatuses: undefined, // instance default
+  modalOnRepeat: undefined, // instance default
+  modalOnUnfollow: undefined, // instance default
+  modalOnBlock: undefined, // instance default
+  modalOnMute: undefined, // instance default
+  modalOnDelete: undefined, // instance default
+  modalOnLogout: undefined, // instance default
+  modalOnApproveFollow: undefined, // instance default
+  modalOnDenyFollow: undefined, // instance default
   playVideosInModal: false,
   useOneClickNsfw: false,
   useContainFit: true,
diff --git a/src/modules/instance.js b/src/modules/instance.js
index ffd3f326..be68968b 100644
--- a/src/modules/instance.js
+++ b/src/modules/instance.js
@@ -38,6 +38,14 @@ const defaultState = {
   hideSiteName: false,
   hideUserStats: false,
   muteBotStatuses: false,
+  modalOnRepeat: false,
+  modalOnUnfollow: false,
+  modalOnBlock: true,
+  modalOnMute: false,
+  modalOnDelete: true,
+  modalOnLogout: true,
+  modalOnApproveFollow: false,
+  modalOnDenyFollow: false,
   loginMethod: 'password',
   logo: '/static/logo.svg',
   logoMargin: '.2em',