diff --git a/testing/firefox/checksums b/testing/firefox/checksums
index 4abaead8..633341e1 100644
--- a/testing/firefox/checksums
+++ b/testing/firefox/checksums
@@ -2,7 +2,7 @@
 f0611136bee505811e9ca11ca7ac188ef5323a8e2ef19cffd3edb3cf08fd791e  autoconf-2.13.tar.gz
 03d70dc6ba6979de07af0be8beb39c00739d33c214521e5fec2d7c2dc589f25b  mozconfig
 960d82bbfdc88c95f5cb4f2e1c1bf23dae7519b3b7203914d7b3ddbff1ba4c28  stab.h
-ddae9dc45fb8d90510cf54c4feef484ebc136e1d1d77e12a682ac71c666771e9  vendor.js
+3698e4b989f9d2ecb9cb53f37662d2e86c6e36288a02aff2d76f4c36293deec2  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 a48f4e75..ea1d97df 100644
--- a/testing/firefox/files/vendor.js
+++ b/testing/firefox/files/vendor.js
@@ -159,7 +159,6 @@ pref("browser.translation.yandex.translateURLOverride", "");
 pref("browser.translation.engine", "bing");
 pref("browser.aboutHomeSnippets.updateUrl", "nonexistent://test");
 pref("browser.newtabpage.activity-stream.default.sites", "");
-pref("browser.newtabpage.activity-stream.telemetry", false);
 pref("browser.newtabpage.activity-stream.tippyTop.service.endpoint", "");
 pref("browser.uitour.pinnedTabUrl", "");
 pref("browser.uitour.url", "");
@@ -167,6 +166,42 @@ pref("browser.search.isUS", true);
 pref("browser.search.countryCode", "US");
 pref("browser.ping-centre.staging.endpoint", "");
 pref("browser.ping-centre.production.endpoint", "");
+pref("browser.contentblocking.report.monitor.sign_in_url", "");
+pref("browser.contentblocking.report.monitor.url", "");
+pref("identity.fxaccounts.service.monitorLoginUrl", "");
+pref("network.trr.resolvers", "");
+pref("network.trr.uri", "");
+pref("security.certerrors.mitm.priming.endpoint", "");
+pref("signon.management.page.breachAlertUrl", "");
+pref("network.connectivity-service.IPv4.url", "");
+pref("network.connectivity-service.IPv6.url", "");
+pref("accessibility.support.url", "");
+pref("app.feedback.baseURL", "");
+pref("app.normandy.shieldLearnMoreUrl", "");
+pref("app.update.url", "");
+pref("browser.chrome.errorReporter.infoURL", "");
+pref("browser.contentblocking.report.cookie.url", "");
+pref("browser.dictionaries.download.url", "");
+pref("browser.safebrowsing.provider.google.reportMalwareMistakeURL", "");
+pref("browser.safebrowsing.provider.google.reportPhishMistakeURL", "");
+pref("browser.safebrowsing.provider.google.reportURL", "");
+pref("browser.safebrowsing.provider.google4.dataSharingURL", "");
+pref("browser.safebrowsing.provider.google4.reportMalwareMistakeURL", "");
+pref("browser.safebrowsing.provider.google4.reportPhishMistakeURL", "");
+pref("browser.safebrowsing.provider.google4.reportURL", "");
+pref("browser.safebrowsing.reportPhishURL", "");
+pref("devtools.devices.url", "");
+pref("devtools.performance.recording.ui-base-url", "");
+pref("devtools.webide.templatesURL", "");
+pref("extensions.getAddons.compatOverides.url", "");
+pref("extensions.getAddons.discovery.api_url", "");
+pref("extensions.getAddons.langpacks.url", "");
+pref("extensions.recommendations.themeRecommendationUrl", "");
+pref("gecko.handlerService.schemes.webcal.0.name", "");
+pref("gecko.handlerService.schemes.webcal.0.uriTemplate", "");
+pref("gecko.handlerService.schemes.irc.0.name", "");
+pref("gecko.handlerService.schemes.irc.0.uriTemplate", "");
+pref("media.gmp-manager.url", "");
 
 // Firefox connects to cloudfront on startup unless
 // these are false/blank.