diff --git a/app/javascript/mastodon/components/status_action_bar.js b/app/javascript/mastodon/components/status_action_bar.js
index 531bc6ae6f..60c0f322e2 100644
--- a/app/javascript/mastodon/components/status_action_bar.js
+++ b/app/javascript/mastodon/components/status_action_bar.js
@@ -372,7 +372,7 @@ class StatusActionBar extends ImmutablePureComponent {
       <IconButton className='status__action-bar__button' title={intl.formatMessage(messages.hide)} icon='eye' onClick={this.handleHideClick} />
     );
 
-    const canReact = status.get('reactions').filter(r => r.get('count') > 0 && r.get('me')).size < maxReactions;
+    const canReact = signedIn && status.get('reactions').filter(r => r.get('count') > 0 && r.get('me')).size < maxReactions;
     const reactButton = (
       <IconButton
         className='status__action-bar-button'
diff --git a/app/javascript/mastodon/components/status_reactions.js b/app/javascript/mastodon/components/status_reactions.js
index 63ec7941cb..c16b7e8260 100644
--- a/app/javascript/mastodon/components/status_reactions.js
+++ b/app/javascript/mastodon/components/status_reactions.js
@@ -85,11 +85,14 @@ class Reaction extends ImmutablePureComponent {
 
   handleClick = () => {
     const { reaction, statusId, addReaction, removeReaction } = this.props;
+    const { signedIn } = this.context.identity;
 
-    if (reaction.get('me')) {
-      removeReaction(statusId, reaction.get('name'));
-    } else {
-      addReaction(statusId, reaction.get('name'));
+    if (signedIn) {
+      if (reaction.get('me')) {
+        removeReaction(statusId, reaction.get('name'));
+      } else {
+        addReaction(statusId, reaction.get('name'));
+      }
     }
   }
 
diff --git a/app/javascript/mastodon/features/status/components/action_bar.js b/app/javascript/mastodon/features/status/components/action_bar.js
index dd30194b2f..21e28b0c4c 100644
--- a/app/javascript/mastodon/features/status/components/action_bar.js
+++ b/app/javascript/mastodon/features/status/components/action_bar.js
@@ -270,7 +270,7 @@ class ActionBar extends React.PureComponent {
       }
     }
 
-    const canReact = status.get('reactions').filter(r => r.get('count') > 0 && r.get('me')).size < maxReactions;
+    const canReact = signedIn && status.get('reactions').filter(r => r.get('count') > 0 && r.get('me')).size < maxReactions;
     const reactButton = (
       <IconButton
         className='plus-icon'