diff --git a/mozilla/browser/app/profile/firefox.js b/mozilla/browser/app/profile/firefox.js
index da37da6f98d..74531ed8577 100644
--- a/mozilla/browser/app/profile/firefox.js
+++ b/mozilla/browser/app/profile/firefox.js
@@ -73,9 +73,9 @@ pref("extensions.getAddons.showPane", true);
 pref("extensions.getAddons.browseAddons", "https://%LOCALE%.add-ons.mozilla.com/%LOCALE%/%APP%");
 pref("extensions.getAddons.maxResults", 5);
 pref("extensions.getAddons.recommended.browseURL", "https://%LOCALE%.add-ons.mozilla.com/%LOCALE%/%APP%/recommended");
-pref("extensions.getAddons.recommended.url", "https://services.addons.mozilla.org/%LOCALE%/%APP%/api/list/featured/all/10");
+pref("extensions.getAddons.recommended.url", "https://services.addons.mozilla.org/%LOCALE%/%APP%/api/%API_VERSION%/list/featured/all/10/%OS%/%VERSION%");
 pref("extensions.getAddons.search.browseURL", "https://%LOCALE%.add-ons.mozilla.com/%LOCALE%/%APP%/search?q=%TERMS%");
-pref("extensions.getAddons.search.url", "https://services.addons.mozilla.org/%LOCALE%/%APP%/api/search/%TERMS%");
+pref("extensions.getAddons.search.url", "https://services.addons.mozilla.org/%LOCALE%/%APP%/api/%API_VERSION%/search/%TERMS%/all/10/%OS%/%VERSION%");
 
 // Blocklist preferences
 pref("extensions.blocklist.enabled", true);
diff --git a/mozilla/mail/app/profile/all-thunderbird.js b/mozilla/mail/app/profile/all-thunderbird.js
index 76e435d4c79..f1253fb9987 100644
--- a/mozilla/mail/app/profile/all-thunderbird.js
+++ b/mozilla/mail/app/profile/all-thunderbird.js
@@ -141,9 +141,9 @@ pref("extensions.getAddons.showPane", true);
 pref("extensions.getAddons.browseAddons", "https://%LOCALE%.add-ons.mozilla.com/%LOCALE%/%APP%");
 pref("extensions.getAddons.maxResults", 5);
 pref("extensions.getAddons.recommended.browseURL", "https://%LOCALE%.add-ons.mozilla.com/%LOCALE%/%APP%/recommended");
-pref("extensions.getAddons.recommended.url", "https://services.addons.mozilla.org/%LOCALE%/%APP%/api/list/featured/all/10");
+pref("extensions.getAddons.recommended.url", "https://services.addons.mozilla.org/%LOCALE%/%APP%/api/%API_VERSION%/list/featured/all/10/%OS%/%VERSION%");
 pref("extensions.getAddons.search.browseURL", "https://%LOCALE%.add-ons.mozilla.com/%LOCALE%/%APP%/search?q=%TERMS%");
-pref("extensions.getAddons.search.url", "https://services.addons.mozilla.org/%LOCALE%/%APP%/api/search/%TERMS%");
+pref("extensions.getAddons.search.url", "https://services.addons.mozilla.org/%LOCALE%/%APP%/api/%API_VERSION%/search/%TERMS%/all/10/%OS%/%VERSION%");
 
 pref("xpinstall.whitelist.add", "update.mozilla.org");
 pref("xpinstall.whitelist.add.103", "addons.mozilla.org");