Bug 1800985 - [devtools] Update adb extension URL to new location r=nchevobbe

The labs folder on the FTP was moved one level up

Differential Revision: https://phabricator.services.mozilla.com/D162248

modules/libpref/init/all.js

@@ -4115,7 +4115,7 @@ pref("devtools.remote.wifi.scan", true);
 pref("devtools.remote.adb.extensionID", "adb@mozilla.org");
 // The URL for for devtools-adb-extension (overridden in tests to a local
 // path).
-pref("devtools.remote.adb.extensionURL", "https://ftp.mozilla.org/pub/mozilla.org/labs/devtools/adb-extension/#OS#/adb-extension-latest-#OS#.xpi");
+pref("devtools.remote.adb.extensionURL", "https://ftp.mozilla.org/pub/labs/devtools/adb-extension/#OS#/adb-extension-latest-#OS#.xpi");
 
 // Enable Inactive CSS detection; used both by the client and the server.
 pref("devtools.inspector.inactive.css.enabled", true);