diff --git a/platform/firefox/install.rdf b/platform/firefox/install.rdf
index ab9c737aa..c0332ff3e 100644
--- a/platform/firefox/install.rdf
+++ b/platform/firefox/install.rdf
@@ -13,7 +13,7 @@
         <bootstrap>true</bootstrap>
         <multiprocessCompatible>true</multiprocessCompatible>
         <optionsType>2</optionsType>
-	{localized}
+{localized}
 
         <!-- Firefox -->
         <targetApplication>
@@ -54,9 +54,9 @@
         <!-- Conkeror -->
         <targetApplication>
             <r:Description>
-		<id>{{a79fe89b-6662-4ff4-8e88-09950ad4dfde}}</id>
-		<minVersion>0.1</minVersion>
-		<maxVersion>9.9</maxVersion>
+                <id>{{a79fe89b-6662-4ff4-8e88-09950ad4dfde}}</id>
+                <minVersion>0.1</minVersion>
+                <maxVersion>9.9</maxVersion>
             </r:Description>
         </targetApplication>
     </r:Description>