diff --git a/xpi/resources/install.rdf b/xpi/resources/install.rdf
--- a/xpi/resources/install.rdf
+++ b/xpi/resources/install.rdf
@@ -38,17 +38,17 @@
2.0 is Gecko 1.9.1
2.1 is Gecko 2.0
2.2 is Gecko 5.0
2.x is Gecko (x+3).0, where x is greater than 2 -->
{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}
2.0
- 2.19a1
+ 2.20a1