Disable the add-ons discovery pane as it hasn't/won't be updated agai…

…n. Dial down phoning to Mozilla servers where possible.

browser/app/profile/firefox.js

@@ -42,13 +42,14 @@ pref("extensions.webextPermissionPrompts", true);
 pref("extensions.webextOptionalPermissionPrompts", true);
 
 // Preferences for AMO integration
-sticky_pref("extensions.getAddons.cache.enabled", false);
+sticky_pref("extensions.getAddons.cache.enabled", true);
+pref("extensions.getAddons.showPane", false);
 pref("extensions.getAddons.maxResults", 15);
 pref("extensions.getAddons.get.url", "https://services.addons.mozilla.org/%LOCALE%/firefox/api/%API_VERSION%/search/guid:%IDS%?src=firefox&appOS=%OS%&appVersion=%VERSION%");
-pref("extensions.getAddons.getWithPerformance.url", "https://services.addons.mozilla.org/%LOCALE%/firefox/api/%API_VERSION%/search/guid:%IDS%?src=firefox&appOS=%OS%&appVersion=%VERSION%&tMain=%TIME_MAIN%&tFirstPaint=%TIME_FIRST_PAINT%&tSessionRestored=%TIME_SESSION_RESTORED%");
+pref("extensions.getAddons.getWithPerformance.url", "");
 pref("extensions.getAddons.search.browseURL", "https://addons.mozilla.org/%LOCALE%/firefox/search?q=%TERMS%&platform=%OS%&appver=%VERSION%");
 pref("extensions.getAddons.search.url", "https://services.addons.mozilla.org/%LOCALE%/firefox/api/%API_VERSION%/search/%TERMS%/all/%MAX_RESULTS%/%OS%/%VERSION%/%COMPATIBILITY_MODE%?src=firefox");
-pref("extensions.webservice.discoverURL", "https://discovery.addons.mozilla.org/%LOCALE%/firefox/discovery/pane/%VERSION%/%OS%/%COMPATIBILITY_MODE%");
+pref("extensions.webservice.discoverURL", "");
 pref("extensions.getAddons.recommended.url", "https://services.addons.mozilla.org/%LOCALE%/%APP%/api/%API_VERSION%/list/recommended/all/%MAX_RESULTS%/%OS%/%VERSION%?src=firefox");
 pref("extensions.getAddons.link.url", "https://addons.mozilla.org/%LOCALE%/firefox/");
 pref("extensions.getAddons.themes.browseURL", "https://addons.mozilla.org/%LOCALE%/firefox/themes/?src=firefox");