diff --git a/mozilla/modules/libpref/src/unix/unix.js b/mozilla/modules/libpref/src/unix/unix.js
index 02e386fbf1b..4956ba4f950 100644
--- a/mozilla/modules/libpref/src/unix/unix.js
+++ b/mozilla/modules/libpref/src/unix/unix.js
@@ -69,7 +69,8 @@ pref("browser.urlbar.clickSelectsAll", false);
 
 // Tab focus model bit field:
 // 1 focuses text controls, 2 focuses other form elements, 4 adds links.
-pref("accessibility.tabfocus", 1);
+// Leave this at the default, 7, to match mozilla1.0-era user expectations.
+// pref("accessibility.tabfocus", 1);
 
 // override double-click word selection behavior.
 pref("layout.word_select.stop_at_punctuation", false);