diff --git a/app/javascript/mastodon/components/column_header.js b/app/javascript/mastodon/components/column_header.js
index cbbc490a8..5b2e16627 100644
--- a/app/javascript/mastodon/components/column_header.js
+++ b/app/javascript/mastodon/components/column_header.js
@@ -17,6 +17,7 @@ class ColumnHeader extends React.PureComponent {
 
   static contextTypes = {
     router: PropTypes.object,
+    identity: PropTypes.object,
   };
 
   static propTypes = {
@@ -145,7 +146,7 @@ class ColumnHeader extends React.PureComponent {
       collapsedContent.push(moveButtons);
     }
 
-    if (children || (multiColumn && this.props.onPin)) {
+    if (this.context.identity.signedIn && (children || (multiColumn && this.props.onPin))) {
       collapseButton = (
         <button
           className={collapsibleButtonClassName}
diff --git a/app/javascript/mastodon/components/poll.js b/app/javascript/mastodon/components/poll.js
index 85aa28816..3e643168e 100644
--- a/app/javascript/mastodon/components/poll.js
+++ b/app/javascript/mastodon/components/poll.js
@@ -34,6 +34,10 @@ const makeEmojiMap = record => record.get('emojis').reduce((obj, emoji) => {
 export default @injectIntl
 class Poll extends ImmutablePureComponent {
 
+  static contextTypes = {
+    identity: PropTypes.object,
+  };
+
   static propTypes = {
     poll: ImmutablePropTypes.map,
     intl: PropTypes.object.isRequired,
@@ -217,7 +221,7 @@ class Poll extends ImmutablePureComponent {
         </ul>
 
         <div className='poll__footer'>
-          {!showResults && <button className='button button-secondary' disabled={disabled} onClick={this.handleVote}><FormattedMessage id='poll.vote' defaultMessage='Vote' /></button>}
+          {!showResults && <button className='button button-secondary' disabled={disabled || !this.context.identity.signedIn} onClick={this.handleVote}><FormattedMessage id='poll.vote' defaultMessage='Vote' /></button>}
           {showResults && !this.props.disabled && <span><button className='poll__link' onClick={this.handleRefresh}><FormattedMessage id='poll.refresh' defaultMessage='Refresh' /></button> · </span>}
           {votesCount}
           {poll.get('expires_at') && <span> · {timeRemaining}</span>}
diff --git a/app/javascript/mastodon/components/status_content.js b/app/javascript/mastodon/components/status_content.js
index 43e938d4e..a88c5f084 100644
--- a/app/javascript/mastodon/components/status_content.js
+++ b/app/javascript/mastodon/components/status_content.js
@@ -15,6 +15,7 @@ class StatusContent extends React.PureComponent {
 
   static contextTypes = {
     router: PropTypes.object,
+    identity: PropTypes.object,
   };
 
   static propTypes = {
@@ -180,7 +181,7 @@ class StatusContent extends React.PureComponent {
     const hidden = this.props.onExpandedToggle ? !this.props.expanded : this.state.hidden;
     const renderReadMore = this.props.onClick && status.get('collapsed');
     const renderViewThread = this.props.showThread && status.get('in_reply_to_id') && status.get('in_reply_to_account_id') === status.getIn(['account', 'id']);
-    const renderTranslate = this.props.onTranslate && ['public', 'unlisted'].includes(status.get('visibility')) && status.get('contentHtml').length > 0 && intl.locale !== status.get('language');
+    const renderTranslate = this.context.identity.signedIn && this.props.onTranslate && ['public', 'unlisted'].includes(status.get('visibility')) && status.get('contentHtml').length > 0 && intl.locale !== status.get('language');
     const language = preloadedLanguages.find(lang => lang[0] === status.get('language'));
     const languageName = language ? language[2] : status.get('language');
 
diff --git a/app/javascript/mastodon/features/ui/components/link_footer.js b/app/javascript/mastodon/features/ui/components/link_footer.js
index 95cd6cf8e..8817bb6c1 100644
--- a/app/javascript/mastodon/features/ui/components/link_footer.js
+++ b/app/javascript/mastodon/features/ui/components/link_footer.js
@@ -56,7 +56,7 @@ class LinkFooter extends React.PureComponent {
       items.push(<a key='invites' href='/invites' target='_blank'><FormattedMessage id='getting_started.invite' defaultMessage='Invite people' /></a>);
     }
 
-    if (withHotkeys) {
+    if (signedIn && withHotkeys) {
       items.push(<Link key='hotkeys' to='/keyboard-shortcuts'><FormattedMessage id='navigation_bar.keyboard_shortcuts' defaultMessage='Hotkeys' /></Link>);
     }
 
diff --git a/app/javascript/mastodon/features/ui/components/sign_in_banner.js b/app/javascript/mastodon/features/ui/components/sign_in_banner.js
index c8403a8ad..5ff4ee2a8 100644
--- a/app/javascript/mastodon/features/ui/components/sign_in_banner.js
+++ b/app/javascript/mastodon/features/ui/components/sign_in_banner.js
@@ -1,10 +1,12 @@
 import React from 'react';
 import { FormattedMessage } from 'react-intl';
+import { registrationsOpen } from 'mastodon/initial_state';
 
 const SignInBanner = () => (
   <div className='sign-in-banner'>
     <p><FormattedMessage id='sign_in_banner.text' defaultMessage='Sign in to follow profiles or hashtags, favourite, share and reply to posts, or interact from your account on a different server.' /></p>
     <a href='/auth/sign_in' className='button button--block'><FormattedMessage id='sign_in_banner.sign_in' defaultMessage='Sign in' /></a>
+    <a href={registrationsOpen ? '/auth/sign_up' : 'https://joinmastodon.org/servers'} className='button button--block button-tertiary'><FormattedMessage id='sign_in_banner.create_account' defaultMessage='Create account' /></a>
   </div>
 );
 
diff --git a/app/javascript/mastodon/initial_state.js b/app/javascript/mastodon/initial_state.js
index 9cc75b6cb..81607a03b 100644
--- a/app/javascript/mastodon/initial_state.js
+++ b/app/javascript/mastodon/initial_state.js
@@ -14,6 +14,7 @@ export const deleteModal = getMeta('delete_modal');
 export const me = getMeta('me');
 export const searchEnabled = getMeta('search_enabled');
 export const limitedFederationMode = getMeta('limited_federation_mode');
+export const registrationsOpen = getMeta('registrations_open');
 export const repository = getMeta('repository');
 export const source_url = getMeta('source_url');
 export const version = getMeta('version');
diff --git a/app/javascript/styles/mastodon/components.scss b/app/javascript/styles/mastodon/components.scss
index 1f1a5a5ca..87ec6bb8a 100644
--- a/app/javascript/styles/mastodon/components.scss
+++ b/app/javascript/styles/mastodon/components.scss
@@ -134,6 +134,26 @@
     }
   }
 
+  &.button-tertiary {
+    background: transparent;
+    padding: 6px 17px;
+    color: $highlight-text-color;
+    border: 1px solid $highlight-text-color;
+
+    &:active,
+    &:focus,
+    &:hover {
+      background: $ui-highlight-color;
+      color: $primary-text-color;
+      border: 0;
+      padding: 7px 18px;
+    }
+
+    &:disabled {
+      opacity: 0.5;
+    }
+  }
+
   &.button--block {
     display: block;
     width: 100%;
@@ -708,6 +728,10 @@
     color: $darker-text-color;
     margin-bottom: 20px;
   }
+
+  .button {
+    margin-bottom: 10px;
+  }
 }
 
 .emojione {
@@ -3671,6 +3695,11 @@ a.status-card.compact:hover {
       background: lighten($ui-base-color, 8%);
     }
   }
+
+  &:disabled {
+    color: $dark-text-color;
+    cursor: default;
+  }
 }
 
 .column-header__collapsible {
diff --git a/app/serializers/initial_state_serializer.rb b/app/serializers/initial_state_serializer.rb
index df076ffc6..87f4db83d 100644
--- a/app/serializers/initial_state_serializer.rb
+++ b/app/serializers/initial_state_serializer.rb
@@ -26,6 +26,7 @@ class InitialStateSerializer < ActiveModel::Serializer
       mascot: instance_presenter.mascot&.file&.url,
       profile_directory: Setting.profile_directory,
       trends: Setting.trends,
+      registrations_open: Setting.registrations_mode != 'none' && !Rails.configuration.x.single_user_mode,
     }
 
     if object.current_account