diff --git a/assets/checksums.txt b/assets/checksums.txt
index 81a7c3ff6..425852456 100644
--- a/assets/checksums.txt
+++ b/assets/checksums.txt
@@ -1,7 +1,7 @@
 39c6f45e6a3d4ec664d24fa9cc5869dc assets/ublock/thirdparty-lists.txt
 543a11c66e8ebda22e9817552da9d3b8 assets/ublock/privacy.txt
 4372d5059ca4ba97e241bd0a85c5f7e6 assets/ublock/filters.txt
-1593dc9e81e8e6bea35219a6e39c0044 assets/ublock/mirror-candidates.txt
+7d2a88153fa47aca2d697d6245bff978 assets/ublock/mirror-candidates.txt
 19e25ce60f7b9e470c110334506b5e15 assets/ublock/filter-lists.json
 132b3ecc9da8a68c3faf740c00af734b assets/thirdparties/adblock-plus-japanese-filter.googlecode.com/hg/abp_jp.txt
 94c0a3eab74c42783855f07b22a429cf assets/thirdparties/home.fredfiber.no/langsholt/adblock.txt
diff --git a/assets/ublock/mirror-candidates.txt b/assets/ublock/mirror-candidates.txt
index aecfa4b58..0b477f471 100644
--- a/assets/ublock/mirror-candidates.txt
+++ b/assets/ublock/mirror-candidates.txt
@@ -8,8 +8,6 @@ cdnjs.cloudflare.com
     ^cdnjs\.cloudflare\.com\/ajax\/libs\/
 code.jquery.com
     ^code\.jquery\.com
-s0.2mdn.net
-    [^\\]*2mdn\.net\/instream\/html5\/ima3\.js
 www.googletagservices.com
     www\.googletagservices\.com\/tag\/js\/gpt\.js
 maxcdn.bootstrapcdn.com
@@ -17,12 +15,8 @@ maxcdn.bootstrapcdn.com
 netdna.bootstrapcdn.com
     [^\\]+\.bootstrapcdn\.com\/bootstrap\/
     [^\\]+\.bootstrapcdn\.com\/font-awesome\/
-b.scorecardresearch.com
-    ^b\.scorecardresearch\.com\/beacon\.js
 platform.twitter.com
     ^platform\.twitter\.com\/widgets\.js
-cdn.quilt.janrain.com
-    ^cdn\.quilt\.janrain\.com\/
 
 # https://github.com/gorhill/uBlock/issues/270#issuecomment-57913228
 # Ref: http://www.asp.net/ajax/cdn