diff --git a/README.md b/README.md
index 2939017..d58316c 100644
--- a/README.md
+++ b/README.md
@@ -6,8 +6,9 @@ _known for being particularly small and compact_
 ## Overview
 
 The practice of [spamdexing](https://en.wikipedia.org/wiki/Spamdexing) is alive
-and well on `gumtree.com`, with unscrupulous sellers able to manipulate search
-results by adding a serious of keyword "tags" at the end of their description.
+and well on `gumtree.com.au`, with unscrupulous sellers able to manipulate
+search results by adding a serious of keyword "tags" at the end of their
+description.
 
 This appears to be especially egregious from car dealerships, and so searching
 for a specific make of car often requires wading through a huge number of
diff --git a/images/example-1280-800.png b/images/example-1280-800.png
new file mode 100644
index 0000000..9f776fe
Binary files /dev/null and b/images/example-1280-800.png differ
diff --git a/manifest.json b/manifest.json
index c556bab..1d90ce9 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,7 +1,7 @@
 {
-    "manifest_version": 2,
+    "manifest_version": 3,
     "name": "Silver Dollar",
-    "version": "1.0",
+    "version": "1.0.1",
 
     "description": "Filters out bad search results from gumtree.com.au",
 
@@ -11,7 +11,7 @@
 
     "content_scripts": [
       {
-        "matches": ["*://*.gumtree.com.au/*"],
+        "matches": ["https://www.gumtree.com.au/*"],
         "js": [
           "browser-polyfill.js",
           "bundle.js"
@@ -27,7 +27,7 @@
       }
     },
 
-    "browser_action": {
+    "action": {
       "default_popup": "html/popup.html",
       "default_icon": {
         "16": "icons/silver-dollar-16.png",
diff --git a/package.json b/package.json
index 028f9e0..34f92b7 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "silver-dollar",
-  "version": "1.0.0",
+  "version": "1.0.1",
   "description": "",
   "main": "index.js",
   "scripts": {