1 files changed, 14 insertions, 1 deletions
diff --git a/dh_xul-ext b/dh_xul-ext
index 6876988..e995174 100755
--- a/dh_xul-ext
+++ b/dh_xul-ext
@@ -44,13 +44,26 @@ class XulApp(object):
         return self.xul_id + ": " + self.package + " (" + self.sol + " to " + \
                self.eol + ")"
 
+    def defaults_to_compatible(self):
+        """Returns true if the maximum and all later versions of the XUL
+        application defaults add-ons to compatible. The XUL extension will be
+        enabled even if the version of the XUL application is higher than the
+        specified maximum version in this case.
+
+        Firefox/Iceweasel 10 defaults add-ons to compatible."""
+
+        if self.xul_id == "{ec8030f7-c20a-464f-9b0e-13a3a9e97384}" and \
+            compare_versions(self.max_version, "10") >= 0:
+            return True
+        return False
+
     def get_breaks(self):
         """Return a string for ${xpi:Breaks} for the XUL application."""
         breaks = []
         if self.min_version:
             deb_min_version = convert_moz_to_debian_version(self.min_version)
             breaks.append(self.package + " (<< " + deb_min_version + ")")
-        if self.max_version:
+        if self.max_version and not self.defaults_to_compatible():
             deb_max_version = moz_to_next_debian_version(self.max_version)
             breaks.append(self.package + " (>> " + deb_max_version + ")")
         return ", ".join(breaks)