From 228dbfbb8c1c8fe7f3d579df2fb3532d2aadeef4 Mon Sep 17 00:00:00 2001
From: Colin Caine <cmc@cs.man.ac.uk>
Date: Tue, 14 Feb 2017 01:27:02 +0000
Subject: [PATCH] Add comment about future work.

---
 addon/main.coffee | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/addon/main.coffee b/addon/main.coffee
index 2b5ae018..7eb762f0 100644
--- a/addon/main.coffee
+++ b/addon/main.coffee
@@ -33,6 +33,9 @@ nextTab1 = () ->
 # TODO: limit to focused window.
 nextTab2 = () ->
     # Alternative implementation without list comprehensions.
+    #
+    # If querying all tabs to get number of tabs is too slow (as if), could
+    # query for index+1 and then test if result array.length == 0.
     browser.tabs.query({}).then(
         (tabs) ->
             browser.tabs.query({active: true}).then(