port legacyfox to ecmascript modules

mozilla calls this 'esm-ification'. the last relevant to us modules were
ported in mozilla124[1], so this is our new minimum version. the old
version will likely be compatible with firefox up to version 128esr[2].

static imports are not supported in autoconfig scripts. i tried to keep
the diff as small as possible w.r.t comm-central's final JSMs. because
of this, we don't lazy-load any modules any more, nor provide any lazy
getters, as they would need to be loaded into a `lazy` object instead
the global (`this`) namespace, causing more churn. other than that, the
largest change was removing the now-useless Services.jsm workaround as
well as removing globalGetters for objects already loaded automatically.

[1]: https://hg.mozilla.org/mozilla-central/rev/68ba071ff6fb9978937496f9adc48e378957f594
[2]: bugzil.la/1881890

1 files changed, 3 insertions, 4 deletions

diff --git a/config.js b/config.js
index 993c6ff..07662f7 100644
--- a/config.js
+++ b/config.js
@@ -1,16 +1,15 @@
 // keep this comment
 try {
-  let {XPIDatabase} = Cu.import('resource://gre/modules/addons/XPIDatabase.jsm', {});
+  let {XPIDatabase} = ChromeUtils.importESModule('resource://gre/modules/addons/XPIDatabase.sys.mjs');
   XPIDatabase.isDisabledLegacy = (addon) => false;
   XPIDatabase.mustSign = (aType) => false;
 
-  const Services = globalThis.Services || Cu.import("resource://gre/modules/Services.jsm").Services;
   let manifest = Services.dirsvc.get('GreD', Ci.nsIFile);
   manifest.append('legacy.manifest');
   Components.manager.QueryInterface(Ci.nsIComponentRegistrar).autoRegister(manifest);
 
-  const {AddonManager} = Cu.import('resource://gre/modules/AddonManager.jsm');
-  const {BootstrapLoader} = Cu.import('resource://legacy/BootstrapLoader.jsm');
+  const {AddonManager} = ChromeUtils.importESModule('resource://gre/modules/AddonManager.sys.mjs');
+  const {BootstrapLoader} = ChromeUtils.importESModule('resource://legacy/BootstrapLoader.sys.mjs');
   AddonManager.addExternalExtensionLoader(BootstrapLoader);
 } catch(ex) {
   Components.utils.reportError(ex.message);