Update JS loader to work with FF147+

Author: Izheil

Installers/Multirow & other functions/root/config.js

@@ -7,10 +7,12 @@ try {
   cmanifest.append('utils');
   cmanifest.append('chrome.manifest');
   Components.manager.QueryInterface(Ci.nsIComponentRegistrar).autoRegister(cmanifest);
-
-  Services.scriptloader.loadSubScript('chrome://userchromejs/content/BootstrapLoader.js');
-} catch (ex) {}
+} catch (e) {
+  Components.utils.reportError(e);
+}
 
 try {
-  Services.scriptloader.loadSubScript('chrome://userchromejs/content/userChrome.js'); 
-} catch (ex) {}
+  Services.scriptloader.loadSubScript('chrome://userchromejs/content/userChrome.js');
+} catch(e) {
+	Components.utils.reportError(e);
+}

Installers/Multirow & other functions/utils/userChrome.js

@@ -107,7 +107,6 @@ let _uc = {
     if (!script.regex.test(win.location.href) || (script.filename != this.ALWAYSEXECUTE && !script.isEnabled)) {
       return;
     }
-
     if (script.onlyonce && script.isRunning) {
       if (script.startup) {
         eval(script.startup);
@@ -173,18 +172,24 @@ if (xPref.get(_uc.PREF_SCRIPTSDISABLED) === undefined) {
 
 let UserChrome_js = {
   observe: function (aSubject) {
-    aSubject.addEventListener('DOMContentLoaded', this, {once: true});
+    if (aSubject != null) {
+      aSubject.addEventListener('DOMContentLoaded', this, {once: true});
+    }
   },
 
   handleEvent: function (aEvent) {
     let document = aEvent.originalTarget;
     let window = document.defaultView;
-    this.load(window);
+    if (window.parent.location.href == 'chrome://browser/content/browser.xhtml') {
+      this.load(window.parent);
+    } else {
+      this.load(window);
+    }
   },
 
   load: function (window) {
     let location = window.location;
-
+    Components.utils.reportError(window.location.href);
     if (!this.sharedWindowOpened && location.href == 'chrome://extensions/content/dummy.xhtml') {
       this.sharedWindowOpened = true;
 
@@ -232,7 +237,7 @@ if (!Services.appinfo.inSafeMode) {
   while (windows.hasMoreElements()) {
     let win = windows.getNext();
     if (!('UC' in win))
-      UserChrome_js.load(win)
+      UserChrome_js.load(win);
   }
   Services.obs.addObserver(UserChrome_js, 'chrome-document-global-created', false);
 }

Multirow and other functions/JS Loader/root/config.js

@@ -7,10 +7,12 @@ try {
   cmanifest.append('utils');
   cmanifest.append('chrome.manifest');
   Components.manager.QueryInterface(Ci.nsIComponentRegistrar).autoRegister(cmanifest);
-
-  Services.scriptloader.loadSubScript('chrome://userchromejs/content/BootstrapLoader.js');
-} catch (ex) {}
+} catch (e) {
+  Components.utils.reportError(e);
+}
 
 try {
-  Services.scriptloader.loadSubScript('chrome://userchromejs/content/userChrome.js'); 
-} catch (ex) {}
+  Services.scriptloader.loadSubScript('chrome://userchromejs/content/userChrome.js');
+} catch(e) {
+	Components.utils.reportError(e);
+}

Multirow and other functions/JS Loader/utils/userChrome.js

@@ -107,7 +107,6 @@ let _uc = {
     if (!script.regex.test(win.location.href) || (script.filename != this.ALWAYSEXECUTE && !script.isEnabled)) {
       return;
     }
-
     if (script.onlyonce && script.isRunning) {
       if (script.startup) {
         eval(script.startup);
@@ -173,18 +172,24 @@ if (xPref.get(_uc.PREF_SCRIPTSDISABLED) === undefined) {
 
 let UserChrome_js = {
   observe: function (aSubject) {
-    aSubject.addEventListener('DOMContentLoaded', this, {once: true});
+    if (aSubject != null) {
+      aSubject.addEventListener('DOMContentLoaded', this, {once: true});
+    }
   },
 
   handleEvent: function (aEvent) {
     let document = aEvent.originalTarget;
     let window = document.defaultView;
-    this.load(window);
+    if (window.parent.location.href == 'chrome://browser/content/browser.xhtml') {
+      this.load(window.parent);
+    } else {
+      this.load(window);
+    }
   },
 
   load: function (window) {
     let location = window.location;
-
+    Components.utils.reportError(window.location.href);
     if (!this.sharedWindowOpened && location.href == 'chrome://extensions/content/dummy.xhtml') {
       this.sharedWindowOpened = true;
 
@@ -232,7 +237,7 @@ if (!Services.appinfo.inSafeMode) {
   while (windows.hasMoreElements()) {
     let win = windows.getNext();
     if (!('UC' in win))
-      UserChrome_js.load(win)
+      UserChrome_js.load(win);
   }
   Services.obs.addObserver(UserChrome_js, 'chrome-document-global-created', false);
 }

README.md

@@ -8,18 +8,19 @@ If you only want multirow or any other function that isn't related to the theme
 
 For anyone looking for the old code like the dark theme or the attempt of a mod loader, you can find it in the **backup/2025-09-12** branch.
 
-### Last update: 03/10/2025
+### Last update: 29/11/2025
 
 Files updated:
 
-- __Multirow*uc.js__: Yet more fixes for tab groups.
+- __userChrome.js__: Fix to make the js files loader work on FF 147+.
+- __config.js__: Added an error logger and removed some deprecated file loading.
 
 
-### Pre-Last update: 01/10/2025
+### Pre-Last update: 03/10/2025
 
 Files updated:
 
-- __Multirow*uc.js__: Fixed some issues while moving tab groups.
+- __Multirow*uc.js__: Yet more fixes for tab groups.
 
 ### A note on people looking to replace some Tab Mix Plus features:
 You can find some of the basic settings that can be simulated through `about:config`, some userscripts, and some addons [here](https://github.com/Izheil/Quantum-Nox-Firefox-Customizations/wiki/Useful-about:config-settings#some-tab-mix-plus-features).