Index: src/forum.c
==================================================================
--- src/forum.c
+++ src/forum.c
@@ -530,10 +530,52 @@
 **                   'h' for hierarchical, or 'a' for automatic.
 */
 void forumpost_page(void){
   forumthread_page();
 }
+
+/*
+** Add an appropriate style_header() to include title of the
+** given forum post.
+*/
+static int forumthread_page_header(int froot, int fpid){
+  Blob title;
+  int mxForumPostTitleLen = 50;
+  char *zThreadTitle = "";
+
+  zThreadTitle = db_text("",
+    "SELECT"
+    " substr(event.comment,instr(event.comment,':')+2)"
+    " FROM forumpost, event"
+    " WHERE event.objid=forumpost.fpid"
+    "   AND forumpost.fpid=%d;",
+    fpid
+  );
+  blob_set(&title, zThreadTitle);
+  /* truncate the title when longer than max allowed;
+   * in case of UTF-8 make sure the truncated string remains valid,
+   * otherwise (different encoding?) pass as-is
+   */
+  if( mxForumPostTitleLen>0 && blob_size(&title)>mxForumPostTitleLen ){
+    Blob truncated;
+    int len;
+    blob_copy(&truncated, &title);
+    for( len = mxForumPostTitleLen; len; --len ){
+      blob_truncate(&truncated, len);
+      if( !invalid_utf8(&truncated) ) break;
+    }
+    if( len ){
+      blob_append(&truncated, "...", 3);
+      blob_copy(&title, &truncated);
+    }
+    blob_reset(&truncated);
+  }
+  style_header("%s%s", blob_str(&title), blob_size(&title) ? " - Forum" : "Forum");
+  blob_reset(&title);
+  fossil_free(zThreadTitle);
+  return 0;
+}
 
 /*
 ** WEBPAGE: forumthread
 **
 ** Show all forum messages associated with a particular message thread.
@@ -561,11 +603,10 @@
   }
   fpid = symbolic_name_to_rid(zName, "f");
   if( fpid<=0 ){
     webpage_error("Unknown or ambiguous forum id: \"%s\"", zName);
   }
-  style_header("Forum");
   froot = db_int(0, "SELECT froot FROM forumpost WHERE fpid=%d", fpid);
   if( froot==0 ){
     webpage_error("Not a forum post: \"%s\"", zName);
   }
   if( fossil_strcmp(g.zPath,"forumthread")==0 ) fpid = 0;
@@ -574,10 +615,11 @@
       zMode = "c";  /* Default to chronological on mobile */
     }else{
       zMode = "h";
     }
   }
+  forumthread_page_header(froot, fpid);
   if( zMode[0]=='c' ){
     style_submenu_element("Hierarchical", "%R/%s/%s?t=h", g.zPath, zName);
     forum_display_chronological(froot, fpid);
   }else{
     style_submenu_element("Chronological", "%R/%s/%s?t=c", g.zPath, zName);