diff --git a/src/vs/workbench/parts/comments/electron-browser/commentThreadWidget.ts b/src/vs/workbench/parts/comments/electron-browser/commentThreadWidget.ts
index 992b6092d6104941e4b4d85d713f4c2ac9a74995..d5a2d3db43b15c1541fdd12b9d7858ccb9e86177 100644
--- a/src/vs/workbench/parts/comments/electron-browser/commentThreadWidget.ts
+++ b/src/vs/workbench/parts/comments/electron-browser/commentThreadWidget.ts
@@ -99,9 +99,7 @@ export class CommentNode {
 let INMEM_MODEL_ID = 0;
 export class ReviewZoneWidget extends ZoneWidget {
 	private _headElement: HTMLElement;
-	protected _primaryHeading: HTMLElement;
-	protected _secondaryHeading: HTMLElement;
-	protected _metaHeading: HTMLElement;
+	protected _headingLabel: HTMLElement;
 	protected _actionbarWidget: ActionBar;
 	private _bodyElement: HTMLElement;
 	private _commentEditor: ICodeEditor;
@@ -205,13 +203,8 @@ export class ReviewZoneWidget extends ZoneWidget {
 			appendTo(this._headElement).
 			getHTMLElement();
 
-		this._primaryHeading = $('span.filename').appendTo(titleElement).getHTMLElement();
-		this._secondaryHeading = $('span.dirname').appendTo(titleElement).getHTMLElement();
-		this._metaHeading = $('span.meta').appendTo(titleElement).getHTMLElement();
-
-		if (this._commentThread.comments.length) {
-			this.createParticipantsLabel();
-		}
+		this._headingLabel = $('span.filename').appendTo(titleElement).getHTMLElement();
+		this.createThreadLabel();
 
 		const actionsContainer = $('.review-actions').appendTo(this._headElement);
 		this._actionbarWidget = new ActionBar(actionsContainer.getHTMLElement(), {});
@@ -288,8 +281,7 @@ export class ReviewZoneWidget extends ZoneWidget {
 
 		this._commentThread = commentThread;
 		this._commentElements = newCommentNodeList;
-		let secondaryHeading = this._commentThread.comments.filter(arrays.uniqueFilter(comment => comment.userName)).map(comment => `@${comment.userName}`).join(', ');
-		$(this._secondaryHeading).safeInnerHtml(secondaryHeading);
+		this.createThreadLabel();
 	}
 
 	protected _doLayout(heightInPixel: number, widthInPixel: number): void {
@@ -423,7 +415,6 @@ export class ReviewZoneWidget extends ZoneWidget {
 
 				if (newCommentThread) {
 					this.createReplyButton();
-					this.createParticipantsLabel();
 				}
 			}
 
@@ -446,20 +437,23 @@ export class ReviewZoneWidget extends ZoneWidget {
 		}
 	}
 
-	createParticipantsLabel() {
-		const primaryHeading = 'Participants:';
-		$(this._primaryHeading).safeInnerHtml(primaryHeading);
-		this._primaryHeading.setAttribute('aria-label', primaryHeading);
+	private createThreadLabel() {
+		let label: string;
+		if (this._commentThread.comments.length) {
+			const participantsList = this._commentThread.comments.filter(arrays.uniqueFilter(comment => comment.userName)).map(comment => `@${comment.userName}`).join(', ');
+			label = nls.localize('commentThreadParticipants', "Participants: {0}", participantsList);
+		} else {
+			label = nls.localize('startThread', "Start discussion");
+		}
 
-		const secondaryHeading = this._commentThread.comments.filter(arrays.uniqueFilter(comment => comment.userName)).map(comment => `@${comment.userName}`).join(', ');
-		$(this._secondaryHeading).safeInnerHtml(secondaryHeading);
-		this._secondaryHeading.setAttribute('aria-label', secondaryHeading);
+		$(this._headingLabel).safeInnerHtml(label);
+		this._headingLabel.setAttribute('aria-label', label);
 	}
 
-	createReplyButton() {
+	private createReplyButton() {
 		this._reviewThreadReplyButton = <HTMLButtonElement>$('button.review-thread-reply-button').appendTo(this._commentForm).getHTMLElement();
-		this._reviewThreadReplyButton.title = 'Reply...';
-		this._reviewThreadReplyButton.textContent = 'Reply...';
+		this._reviewThreadReplyButton.title = nls.localize('reply', "Reply...");
+		this._reviewThreadReplyButton.textContent = nls.localize('reply', "Reply...");
 		// bind click/escape actions for reviewThreadReplyButton and textArea
 		this._reviewThreadReplyButton.onclick = () => {
 			if (!dom.hasClass(this._commentForm, 'expand')) {
@@ -493,7 +487,11 @@ export class ReviewZoneWidget extends ZoneWidget {
 		if (model) {
 			let valueLength = model.getValueLength();
 			const hasExistingComments = this._commentThread.comments.length > 0;
-			let placeholder = valueLength > 0 ? '' : (hasExistingComments ? 'Reply... (press Ctrl+Enter to submit)' : 'Type a new comment (press Ctrl+Enter to submit)');
+			let placeholder = valueLength > 0
+				? ''
+				: (hasExistingComments
+					? nls.localize('replytoCommentThread', "Reply... (press Ctrl+Enter to submit)")
+					: nls.localize('createCommentThread', "Type a new comment (press Ctrl+Enter to submit)"));
 			const decorations = [{
 				range: {
 					startLineNumber: 0,
diff --git a/src/vs/workbench/parts/comments/electron-browser/media/review.css b/src/vs/workbench/parts/comments/electron-browser/media/review.css
index 6a3d41dd41d6010180d586ce4d0a7e7ec461d4d9..fec5528683706c4e550114b36265d51721b3f0b9 100644
--- a/src/vs/workbench/parts/comments/electron-browser/media/review.css
+++ b/src/vs/workbench/parts/comments/electron-browser/media/review.css
@@ -223,10 +223,6 @@
 	cursor: pointer;
 }
 
-.monaco-editor .review-widget .head .review-title .filename:empty::after {
-	content: "Start discussion";
-}
-
 .monaco-editor .review-widget .head .review-title .dirname:not(:empty) {
 	font-size: 0.9em;
 	margin-left: 0.5em;