Index: src/orca/Gecko.py
===================================================================
--- src/orca/Gecko.py	(revision 2150)
+++ src/orca/Gecko.py	(working copy)
@@ -940,14 +940,15 @@
 
         keyBindings = default.Script.getKeyBindings(self)
 
-        # NOTE: We include ALT in all the bindings below so as to not
-        # conflict with menu and other mnemonics.
+        # NOTE: We include ALT and CONTROL in all the bindings below so as
+        # to not conflict with menu and other mnemonics.
 
         keyBindings.add(
             keybindings.KeyBinding(
                 "h",
                 (1 << atspi.Accessibility.MODIFIER_SHIFT \
-                 | 1 << atspi.Accessibility.MODIFIER_ALT),
+                 | 1 << atspi.Accessibility.MODIFIER_ALT \
+                 | 1 << atspi.Accessibility.MODIFIER_CONTROL),
                 1 << atspi.Accessibility.MODIFIER_SHIFT,
                 self.inputEventHandlers["goPreviousHeadingHandler"]))
 
@@ -955,7 +956,8 @@
             keybindings.KeyBinding(
                 "h",
                 (1 << atspi.Accessibility.MODIFIER_SHIFT \
-                 | 1 << atspi.Accessibility.MODIFIER_ALT),
+                 | 1 << atspi.Accessibility.MODIFIER_ALT \
+                 | 1 << atspi.Accessibility.MODIFIER_CONTROL),
                 0,
                 self.inputEventHandlers["goNextHeadingHandler"]))
 
@@ -963,7 +965,8 @@
             keybindings.KeyBinding(
                 "o",
                 (1 << atspi.Accessibility.MODIFIER_SHIFT \
-                 | 1 << atspi.Accessibility.MODIFIER_ALT),
+                 | 1 << atspi.Accessibility.MODIFIER_ALT \
+                 | 1 << atspi.Accessibility.MODIFIER_CONTROL),
                 1 << atspi.Accessibility.MODIFIER_SHIFT,
                 self.inputEventHandlers["goPreviousChunkHandler"]))
 
@@ -971,7 +974,8 @@
             keybindings.KeyBinding(
                 "o",
                 (1 << atspi.Accessibility.MODIFIER_SHIFT \
-                 | 1 << atspi.Accessibility.MODIFIER_ALT),
+                 | 1 << atspi.Accessibility.MODIFIER_ALT \
+                 | 1 << atspi.Accessibility.MODIFIER_CONTROL),
                 0,
                 self.inputEventHandlers["goNextChunkHandler"]))

