--- a/browser/branding/aurora/pref/firefox-branding.js
+++ b/browser/branding/aurora/pref/firefox-branding.js
@@ -17,17 +17,17 @@ pref("app.update.download.backgroundInte
 pref("app.update.promptWaitTime", 691200);
 // URL user can browse to manually if for some reason all update installation
 // attempts fail.
 pref("app.update.url.manual", "https://www.mozilla.org/firefox/aurora/");
 // A default value for the "More information about this update" link
 // supplied in the "An update is available" page of the update wizard.
 pref("app.update.url.details", "https://www.mozilla.org/firefox/aurora/");
 
-pref("app.releaseNotesURL", "https://www.mozilla.org/%LOCALE%/firefox/%VERSION%/releasenotes/");
+pref("app.releaseNotesURL", "https://www.mozilla.org/%LOCALE%/firefox/%VERSION%/releasenotes/?utm_source=firefox-browser&utm_medium=firefox-browser&utm_campaign=whatsnew");
 
 // The number of days a binary is permitted to be old
 // without checking for an update.  This assumes that
 // app.update.checkInstallTime is true.
 pref("app.update.checkInstallTime.days", 2);
 
 // Give the user x seconds to reboot before showing a badge on the hamburger
 // button. default=4 days

--- a/browser/branding/official/pref/firefox-branding.js
+++ b/browser/branding/official/pref/firefox-branding.js
@@ -15,17 +15,17 @@ pref("app.update.download.backgroundInte
 pref("app.update.promptWaitTime", 691200);
 // URL user can browse to manually if for some reason all update installation
 // attempts fail.
 pref("app.update.url.manual", "https://www.mozilla.org/firefox/");
 // A default value for the "More information about this update" link
 // supplied in the "An update is available" page of the update wizard.
 pref("app.update.url.details", "https://www.mozilla.org/%LOCALE%/firefox/notes");
 
-pref("app.releaseNotesURL", "https://www.mozilla.org/%LOCALE%/firefox/%VERSION%/releasenotes/");
+pref("app.releaseNotesURL", "https://www.mozilla.org/%LOCALE%/firefox/%VERSION%/releasenotes/?utm_source=firefox-browser&utm_medium=firefox-browser&utm_campaign=whatsnew");
 
 // The number of days a binary is permitted to be old
 // without checking for an update.  This assumes that
 // app.update.checkInstallTime is true.
 pref("app.update.checkInstallTime.days", 63);
 
 // Give the user x seconds to reboot before showing a badge on the hamburger
 // button. default=immediately