diff --git a/package.json b/package.json
index 0aaa77b..a73a48c 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
   "scripts": {
     "test": "cp src/manifest-firefox.json src/manifest.json && npx rollup -c && npx web-ext run -s src && rm src/manifest.json",
     "test-chrome": "cp src/manifest-chrome.json src/manifest.json && npx rollup -c && chromium && rm src/manifest.json",
-    "build": "cp src/manifest-firefox.json src/manifest.json && npx rollup -c && npx web-ext build -s src -a dist --ignore-files replace-words.js save-load-options.js manifest-* service-worker* -n {name}-{version}-firefox.zip -o && rm src/manifest.json",
+    "build": "cp src/manifest-firefox.json src/manifest.json && npx rollup -c && npx web-ext build -s src -a dist --ignore-files replace-words.js save-load-options.js manifest-* service-worker* -n {name}-{version}.xpi -o && rm src/manifest.json",
     "build-chrome": "cp src/manifest-chrome.json src/manifest.json && npx rollup -c && npx web-ext build -s src -a dist --ignore-files replace-words.js save-load-options.js manifest-* background.js -n {name}-{version}-chrome.zip -o && rm src/manifest.json"
   },
   "devDependencies": {
diff --git a/src/background.js b/src/background.js
index 299cc00..69f47a5 100644
--- a/src/background.js
+++ b/src/background.js
@@ -16,6 +16,7 @@ function updateIcon(event) {
 }
 
 /* Listen for color scheme changes */
+browser.runtime.onInstalled.addListener(updateColorSchemeOnInstall);
 window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', updateColorScheme);
 
 /* Update the color scheme to light or dark */
@@ -30,6 +31,11 @@ function updateColorScheme(event) {
   updateIcon();
 }
 
+/* Updatw the color scheme on install */
+function updateColorSchemeOnInstall() {
+  updateColorScheme(window.matchMedia('(prefers-color-scheme: dark)'));
+}
+
 /* Listen for tab changes */
 window.addEventListener("load", updateState());
 browser.tabs.onUpdated.addListener(updateStateOnReload, {urls: ["*://*/*"]});
diff --git a/src/service-worker-window.js b/src/service-worker-window.js
index d19719b..32ddee7 100644
--- a/src/service-worker-window.js
+++ b/src/service-worker-window.js
@@ -2,7 +2,6 @@
 updateColorScheme(window.matchMedia('(prefers-color-scheme: dark)'));
 
 function updateColorScheme(event) {
-  console.log("doing!");
   chrome.runtime.sendMessage({
     content: "colorScheme",
     isDark: event.matches