diff --git a/extension.json b/extension.json
index 3223ee6bc6..e1dfda6ca5 100644
--- a/extension.json
+++ b/extension.json
@@ -73,7 +73,7 @@
 			"firefox": [
 				[
 					"<=",
-					14
+					11
 				]
 			],
 			"safari": [
diff --git a/modules/ve-mw/init/targets/ve.init.mw.DesktopArticleTarget.js b/modules/ve-mw/init/targets/ve.init.mw.DesktopArticleTarget.js
index e328f98c5f..feb127d354 100644
--- a/modules/ve-mw/init/targets/ve.init.mw.DesktopArticleTarget.js
+++ b/modules/ve-mw/init/targets/ve.init.mw.DesktopArticleTarget.js
@@ -141,7 +141,7 @@ ve.init.mw.DesktopArticleTarget.static.compatibility = {
 	// The value is either null (match all versions) or a list of tuples
 	// containing an inequality (<,>,<=,>=) and a version number
 	whitelist: {
-		firefox: [ [ '>=', 15 ] ],
+		firefox: [ [ '>=', 12 ] ],
 		iceweasel: [ [ '>=', 10 ] ],
 		safari: [ [ '>=', 7 ] ],
 		chrome: [ [ '>=', 19 ] ],
diff --git a/modules/ve-mw/tests/init/targets/ve.init.mw.DesktopArticleTarget.test.js b/modules/ve-mw/tests/init/targets/ve.init.mw.DesktopArticleTarget.test.js
index efac20a4f5..9fab857d77 100644
--- a/modules/ve-mw/tests/init/targets/ve.init.mw.DesktopArticleTarget.test.js
+++ b/modules/ve-mw/tests/init/targets/ve.init.mw.DesktopArticleTarget.test.js
@@ -59,17 +59,17 @@ QUnit.test( 'compatibility', function ( assert ) {
 			{
 				msg: 'Firefox 12',
 				userAgent: 'Mozilla/5.0 (compatible; Windows; U; Windows NT 6.2; WOW64; en-US; rv:12.0) Gecko/20120403211507 Firefox/12.0',
-				matches: [ 'blacklist' ]
+				matches: [ 'whitelist' ]
 			},
 			{
 				msg: 'Firefox 13',
 				userAgent: 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:13.0) Gecko/20100101 Firefox/13.0',
-				matches: [ 'blacklist' ]
+				matches: [ 'whitelist' ]
 			},
 			{
 				msg: 'Firefox 14',
 				userAgent: 'Mozilla/5.0 (Windows NT 6.1; rv:12.0) Gecko/20120403211507 Firefox/14.0.1',
-				matches: [ 'blacklist' ]
+				matches: [ 'whitelist' ]
 			},
 			{
 				msg: 'Firefox 15',