diff --git a/ui/redux/actions/comments.js b/ui/redux/actions/comments.js
index 4d427f02f7..2bf7f08d7a 100644
--- a/ui/redux/actions/comments.js
+++ b/ui/redux/actions/comments.js
@@ -710,6 +710,9 @@ export function doCommentCreate(uri: string, livestream: boolean, params: Commen
     const myCommentedChannelIds = selectMyCommentedChannelIdsForId(state, claim_id);
     const mentionedChannels: Array<MentionedChannel> = [];
 
+    const claim = selectClaimForClaimId(state, claim_id);
+    const targetClaimId = claim.signing_channel ? claim.signing_channel.claim_id : claim_id; // claim_id is for anonymous content and on channel page comments
+
     if (!activeChannelClaim) {
       console.error('Unable to create comment. No activeChannel is set.'); // eslint-disable-line
       return;
@@ -725,6 +728,23 @@ export function doCommentCreate(uri: string, livestream: boolean, params: Commen
       return;
     }
 
+    let previousCommenterChannel = localStorage.getItem(`commenter_${targetClaimId}`);
+    previousCommenterChannel = previousCommenterChannel ? JSON.parse(previousCommenterChannel) : null;
+    if (
+      previousCommenterChannel &&
+      previousCommenterChannel.claim_id !== activeChannelClaim.claim_id &&
+      myCommentedChannelIds &&
+      !myCommentedChannelIds.includes(activeChannelClaim.claim_id)
+    ) {
+      dispatchToast(
+        dispatch,
+        __('Commenting from multiple channels is not allowed.'),
+        previousCommenterChannel.name,
+        'long'
+      );
+      return;
+    }
+
     if (myCommentedChannelIds && myCommentedChannelIds.length) {
       if (!myCommentedChannelIds.includes(activeChannelClaim.claim_id)) {
         const claimById = selectClaimsById(state);
@@ -805,6 +825,25 @@ export function doCommentCreate(uri: string, livestream: boolean, params: Commen
       ...(payment_intent_id ? { payment_intent_id } : {}),
     })
       .then((result: CommentCreateResponse) => {
+        if (!previousCommenterChannel) {
+          const previousCommenterChannel = {
+            claim_id: activeChannelClaim.claim_id,
+            name: activeChannelClaim.name,
+          };
+          localStorage.setItem(`commenter_${targetClaimId}`, JSON.stringify(previousCommenterChannel));
+
+          let lastCommentedClaims = localStorage.getItem('lastCommentedClaims');
+          lastCommentedClaims = lastCommentedClaims ? JSON.parse(lastCommentedClaims) : [];
+          if (!lastCommentedClaims.includes(claim_id)) {
+            lastCommentedClaims.push(claim_id);
+            if (lastCommentedClaims.length > 100) {
+              const droppedItemClaimId = lastCommentedClaims.shift();
+              localStorage.removeItem(`commenter_${droppedItemClaimId}`);
+            }
+            localStorage.setItem('lastCommentedClaims', JSON.stringify(lastCommentedClaims));
+          }
+        }
+
         dispatch({
           type: ACTIONS.COMMENT_CREATE_COMPLETED,
           data: {