diff --git a/accessible/base/nsAccessibilityService.cpp b/accessible/base/nsAccessibilityService.cpp
index 08ae2fb60c0..11fb96250b4 100644
--- a/accessible/base/nsAccessibilityService.cpp
+++ b/accessible/base/nsAccessibilityService.cpp
@@ -136,7 +136,7 @@ MustBeAccessible(nsIContent* aContent, DocAccessible* aDocument)
 ////////////////////////////////////////////////////////////////////////////////
 // Accessible constructors
 
-Accessible*
+static Accessible*
 New_HTMLLink(nsIContent* aContent, Accessible* aContext)
 {
   // Only some roles truly enjoy life as HTMLLinkAccessibles, for details
@@ -150,28 +150,28 @@ New_HTMLLink(nsIContent* aContent, Accessible* aContext)
   return new HTMLLinkAccessible(aContent, aContext->Document());
 }
 
-Accessible* New_HyperText(nsIContent* aContent, Accessible* aContext)
+static Accessible* New_HyperText(nsIContent* aContent, Accessible* aContext)
   { return new HyperTextAccessibleWrap(aContent, aContext->Document()); }
 
-Accessible* New_HTMLFigcaption(nsIContent* aContent, Accessible* aContext)
+static Accessible* New_HTMLFigcaption(nsIContent* aContent, Accessible* aContext)
   { return new HTMLFigcaptionAccessible(aContent, aContext->Document()); }
 
-Accessible* New_HTMLFigure(nsIContent* aContent, Accessible* aContext)
+static Accessible* New_HTMLFigure(nsIContent* aContent, Accessible* aContext)
   { return new HTMLFigureAccessible(aContent, aContext->Document()); }
 
-Accessible* New_HTMLLegend(nsIContent* aContent, Accessible* aContext)
+static Accessible* New_HTMLLegend(nsIContent* aContent, Accessible* aContext)
   { return new HTMLLegendAccessible(aContent, aContext->Document()); }
 
-Accessible* New_HTMLOption(nsIContent* aContent, Accessible* aContext)
+static Accessible* New_HTMLOption(nsIContent* aContent, Accessible* aContext)
   { return new HTMLSelectOptionAccessible(aContent, aContext->Document()); }
 
-Accessible* New_HTMLOptgroup(nsIContent* aContent, Accessible* aContext)
+static Accessible* New_HTMLOptgroup(nsIContent* aContent, Accessible* aContext)
   { return new HTMLSelectOptGroupAccessible(aContent, aContext->Document()); }
 
-Accessible* New_HTMLList(nsIContent* aContent, Accessible* aContext)
+static Accessible* New_HTMLList(nsIContent* aContent, Accessible* aContext)
   { return new HTMLListAccessible(aContent, aContext->Document()); }
 
-Accessible*
+static Accessible*
 New_HTMLListitem(nsIContent* aContent, Accessible* aContext)
 {
   // If list item is a child of accessible list then create an accessible for
@@ -183,7 +183,7 @@ New_HTMLListitem(nsIContent* aContent, Accessible* aContext)
   return nullptr;
 }
 
-Accessible*
+static Accessible*
 New_HTMLDefinition(nsIContent* aContent, Accessible* aContext)
 {
   if (aContext->IsList())
@@ -191,16 +191,16 @@ New_HTMLDefinition(nsIContent* aContent, Accessible* aContext)
   return nullptr;
 }
 
-Accessible* New_HTMLLabel(nsIContent* aContent, Accessible* aContext)
+static Accessible* New_HTMLLabel(nsIContent* aContent, Accessible* aContext)
   { return new HTMLLabelAccessible(aContent, aContext->Document()); }
 
-Accessible* New_HTMLOutput(nsIContent* aContent, Accessible* aContext)
+static Accessible* New_HTMLOutput(nsIContent* aContent, Accessible* aContext)
   { return new HTMLOutputAccessible(aContent, aContext->Document()); }
 
-Accessible* New_HTMLProgress(nsIContent* aContent, Accessible* aContext)
+static Accessible* New_HTMLProgress(nsIContent* aContent, Accessible* aContext)
   { return new HTMLProgressMeterAccessible(aContent, aContext->Document()); }
 
-Accessible*
+static Accessible*
 New_HTMLTableHeaderCell(nsIContent* aContent, Accessible* aContext)
 {
   if (aContext->IsTableRow() && aContext->GetContent() == aContent->GetParent())
@@ -208,7 +208,7 @@ New_HTMLTableHeaderCell(nsIContent* aContent, Accessible* aContext)
   return nullptr;
 }
 
-Accessible*
+static Accessible*
 New_HTMLTableHeaderCellIfScope(nsIContent* aContent, Accessible* aContext)
 {
   if (aContext->IsTableRow() && aContext->GetContent() == aContent->GetParent() &&