diff --git a/locales/generic/install.rdf b/locales/generic/install.rdf
--- a/locales/generic/install.rdf
+++ b/locales/generic/install.rdf
@@ -30,13 +30,15 @@
 		
 		<!-- target: Mozilla Firefox
 		     3.5 is Gecko 1.9.1
-		     3.6 is GEcko 1.9.2
-		     4.0 is Gecko 2.0 -->
+		     3.6 is Gecko 1.9.2
+		     4.0 is Gecko 2.0
+		     5.0 is Gecko 5.0
+		     x.0 is Gecko x.0 -->
 		<em:targetApplication>
 			<Description>
 				<em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
 				<em:minVersion>3.5</em:minVersion>
-				<em:maxVersion>4.0.*</em:maxVersion>
+				<em:maxVersion>8.0.*</em:maxVersion>
 			</Description>
 		</em:targetApplication>
 		
@@ -45,12 +47,13 @@
 		     2.1 is Gecko 2.0
 		     2.2 is Gecko 5.0
 		     2.3 is Gecko 6.0
-		     2.4 is Gecko 7.0 -->
+		     2.4 is Gecko 7.0
+		     2.5 is Gecko 8.0 -->
 		<em:targetApplication>
 			<Description>
 				<em:id>{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}</em:id>
 				<em:minVersion>2.0</em:minVersion>
-				<em:maxVersion>2.4.*</em:maxVersion>
+				<em:maxVersion>2.5.*</em:maxVersion>
 			</Description>
 		</em:targetApplication>
 		
diff --git a/xpi/resources/install.rdf b/xpi/resources/install.rdf
--- a/xpi/resources/install.rdf
+++ b/xpi/resources/install.rdf
@@ -13,13 +13,15 @@
 		
 		<!-- target: Mozilla Firefox
 		     3.5 is Gecko 1.9.1
-		     3.6 is GEcko 1.9.2
-		     4.0 is Gecko 2.0 -->
+		     3.6 is Gecko 1.9.2
+		     4.0 is Gecko 2.0
+		     5.0 is Gecko 5.0
+		     x.0 is Gecko x.0 -->
 		<em:targetApplication>
 			<Description>
 				<em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
 				<em:minVersion>3.5</em:minVersion>
-				<em:maxVersion>4.0.*</em:maxVersion>
+				<em:maxVersion>8.0.*</em:maxVersion>
 			</Description>
 		</em:targetApplication>
 		
@@ -28,12 +30,13 @@
 		     2.1 is Gecko 2.0
 		     2.2 is Gecko 5.0
 		     2.3 is Gecko 6.0
-		     2.4 is Gecko 7.0 -->
+		     2.4 is Gecko 7.0
+		     2.5 is Gecko 8.0 -->
 		<em:targetApplication>
 			<Description>
 				<em:id>{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}</em:id>
 				<em:minVersion>2.0</em:minVersion>
-				<em:maxVersion>2.4.*</em:maxVersion>
+				<em:maxVersion>2.5.*</em:maxVersion>
 			</Description>
 		</em:targetApplication>