1 files changed, 73 insertions, 0 deletions
diff --git a/modules/firefox.home/chrome/extensionsManager.uc.js b/modules/firefox.home/chrome/extensionsManager.uc.js
new file mode 100644
index 0000000..f5f3ed2
--- /dev/null
+++ b/modules/firefox.home/chrome/extensionsManager.uc.js
@@ -0,0 +1,73 @@
+// ==UserScript==
+// @name                 Custom New Tab
+// @version              1.0
+// @description          Load a custom link or local file, instead of the default new tab page
+// @startup              UC.extensionsManager.init(win)
+// @shutdown             UC.extensionsManager.destroy();
+// ==/UserScript==
+
+(() => {
+  const ENABLE = false;
+
+  // Managed in about:config
+  const EXTENSION_SETTINGS_PREF = 'extensions.uc.userExtensionSettings'
+
+  const getSettings = () => {
+    try {
+      return JSON.parse(xPref.get(EXTENSION_SETTINGS_PREF) || 'null') ?? {};
+    } catch (e) {
+      return {};
+    }
+  }
+
+  const saveSettings = (settings) =>
+    xPref.set(EXTENSION_SETTINGS_PREF, JSON.stringify(settings));
+
+  const updateExtensionSetting = (id, update) => {
+    const settings = getSettings();
+    settings.extensions[id] ??= {};
+    settings.extensions[id] = update(settings.extensions[id] ?? {}) ?? {};
+    saveSettings(settings);
+  }
+
+  const getCurrentTabHost = () => gBrowser.selectedTab.linkedBrowser.currentURI.host.trim() || null;
+
+  const module = {
+    disableForHost(id, host = getCurrentTabHost()) {
+      updateExtensionSetting(id, s => {
+        const urls = new Set(s.disabledHosts || []);
+        urls.add(host);
+        s.disabledHosts = [...urls];
+        return s;
+      });
+    },
+
+    async onTabChange() {
+      const currentHost = getCurrentTabHost();
+      if (!currentHost) return;
+
+      const settings = getSettings();
+      const addons = await AddonManager.getAllAddons();
+      addons.forEach(addon => {
+        const disabledHosts = settings?.extensions[addon.id].disabledHosts ?? [];
+        const shouldDisable = disabledHosts.includes(currentHost)
+
+        if (addon.isActive && shouldDisable)
+          return addon.disable();
+        if (!addon.isActive && !shouldDisable)
+          return addon.enable();
+      })
+    },
+
+    init(_win) {
+      if (!ENABLE) return;
+
+      Services.obs.addObserver(module.onTabChange, 'TabSelect');
+    },
+    destroy() {
+      Services.obs.removeObserver(module.onTabChange, 'TabSelect');
+    },
+  };
+
+  UC.extensionsManager = module;
+})();