diff --git a/testing/firefox/checksums b/testing/firefox/checksums
index 633341e1..abfe9e70 100644
--- a/testing/firefox/checksums
+++ b/testing/firefox/checksums
@@ -2,7 +2,7 @@
 f0611136bee505811e9ca11ca7ac188ef5323a8e2ef19cffd3edb3cf08fd791e  autoconf-2.13.tar.gz
 03d70dc6ba6979de07af0be8beb39c00739d33c214521e5fec2d7c2dc589f25b  mozconfig
 960d82bbfdc88c95f5cb4f2e1c1bf23dae7519b3b7203914d7b3ddbff1ba4c28  stab.h
-3698e4b989f9d2ecb9cb53f37662d2e86c6e36288a02aff2d76f4c36293deec2  vendor.js
+297d016429ae44ebabfc3864a1077807fba97b4652e4be7350e24a7b894a5d56  vendor.js
 f4ce7ee2485256b3f8c2bc467445f14b4730a7b895b17de7a21711d78bcfedea  policies.json
 315880530f09175788dfa48a1915bfa1e190bfd3e267988b9100cb93006c808c  fix-fortify-system-wrappers.patch
 418a2a9f80c41ee004cb640968617cab283b99f3d109aaf6180b0088d60c84b0  fix-sandbox-membarrier.patch
diff --git a/testing/firefox/files/vendor.js b/testing/firefox/files/vendor.js
index ea1d97df..282a2d02 100644
--- a/testing/firefox/files/vendor.js
+++ b/testing/firefox/files/vendor.js
@@ -594,9 +594,6 @@ pref("privacy.sanitize.timeSpan", 0);
 
 pref("privacy.firstparty.isolate", true);
 pref("privacy.firstparty.isolate.restrict_opener_access", true);
-pref("privacy.resistFingerprinting", true);
-pref("privacy.resistFingerprinting.block_mozAddonManager", true);
-pref("privacy.resistFingerprinting.letterboxing", true);
 pref("browser.startup.blankWindow", false);
 
 //