diff --git a/common.js b/common.js
index 12fbd85..5c2663a 100644
--- a/common.js
+++ b/common.js
@@ -66,7 +66,11 @@ function match(url) {
   }
   else {
     const h = hostname(url);
-    const s = prefs.custom[h];
+    let s = prefs.custom[h] || prefs.custom['*'];
+    // if s is an array select a random string
+    if (Array.isArray(s)) {
+      s = s[Math.floor(Math.random() * s.length)];
+    }
     if (s) {
       const o = {};
       o.userAgent = s;
@@ -80,7 +84,7 @@ function match(url) {
       return o;
     }
     else {
-      return ua.userAgent ? false : true;
+      return !ua.userAgent;
     }
   }
 }
@@ -176,7 +180,7 @@ User-Agent String: ${prefs.mode === 'custom' ? custom : prefs.ua || navigator.us
 // FAQs & Feedback
 chrome.storage.local.get({
   'version': null,
-  'faqs': navigator.userAgent.indexOf('Firefox') === -1,
+  'faqs': true,
   'last-update': 0,
 }, prefs => {
   const version = chrome.runtime.getManifest().version;
@@ -207,7 +211,3 @@ chrome.storage.local.get({
     chrome.runtime.getManifest().homepage_url + '?rd=feedback&name=' + name + '&version=' + version
   );
 }
-
-chrome.tabs.create({
-  url: 'data/popup/index.html'
-})
diff --git a/data/icons/128.png b/data/icons/128.png
index 39dc5a9..5a1728e 100644
Binary files a/data/icons/128.png and b/data/icons/128.png differ
diff --git a/data/icons/16.png b/data/icons/16.png
index 5e5227c..5f500f4 100644
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diff --git a/data/icons/18.png b/data/icons/18.png
new file mode 100644
index 0000000..265595a
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diff --git a/data/icons/19.png b/data/icons/19.png
new file mode 100644
index 0000000..c9b4803
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diff --git a/data/icons/256.png b/data/icons/256.png
index c1aa4df..6024c3a 100644
Binary files a/data/icons/256.png and b/data/icons/256.png differ
diff --git a/data/icons/32.png b/data/icons/32.png
index ce9a36a..d98aac4 100644
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diff --git a/data/icons/36.png b/data/icons/36.png
new file mode 100644
index 0000000..6496212
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diff --git a/data/icons/38.png b/data/icons/38.png
new file mode 100644
index 0000000..4533c51
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diff --git a/data/icons/48.png b/data/icons/48.png
index 6687008..8643a43 100644
Binary files a/data/icons/48.png and b/data/icons/48.png differ
diff --git a/data/icons/512.png b/data/icons/512.png
index e8e74fa..d262332 100644
Binary files a/data/icons/512.png and b/data/icons/512.png differ
diff --git a/data/icons/64.png b/data/icons/64.png
index dc6ac1d..d005e4a 100644
Binary files a/data/icons/64.png and b/data/icons/64.png differ
diff --git a/data/icons/active/128.png b/data/icons/active/128.png
new file mode 100644
index 0000000..bac2a00
Binary files /dev/null and b/data/icons/active/128.png differ
diff --git a/data/icons/active/16.png b/data/icons/active/16.png
index 614b462..f4d5c6d 100644
Binary files a/data/icons/active/16.png and b/data/icons/active/16.png differ
diff --git a/data/icons/active/18.png b/data/icons/active/18.png
new file mode 100644
index 0000000..c820a17
Binary files /dev/null and b/data/icons/active/18.png differ
diff --git a/data/icons/active/19.png b/data/icons/active/19.png
new file mode 100644
index 0000000..b7b6c51
Binary files /dev/null and b/data/icons/active/19.png differ
diff --git a/data/icons/active/256.png b/data/icons/active/256.png
new file mode 100644
index 0000000..24da822
Binary files /dev/null and b/data/icons/active/256.png differ
diff --git a/data/icons/active/32.png b/data/icons/active/32.png
index d5d1260..57822fb 100644
Binary files a/data/icons/active/32.png and b/data/icons/active/32.png differ
diff --git a/data/icons/active/36.png b/data/icons/active/36.png
new file mode 100644
index 0000000..b87ea10
Binary files /dev/null and b/data/icons/active/36.png differ
diff --git a/data/icons/active/38.png b/data/icons/active/38.png
new file mode 100644
index 0000000..054e54a
Binary files /dev/null and b/data/icons/active/38.png differ
diff --git a/data/icons/active/48.png b/data/icons/active/48.png
index d7c85a0..0ba8aa7 100644
Binary files a/data/icons/active/48.png and b/data/icons/active/48.png differ
diff --git a/data/icons/active/512.png b/data/icons/active/512.png
new file mode 100644
index 0000000..d88307d
Binary files /dev/null and b/data/icons/active/512.png differ
diff --git a/data/icons/active/64.png b/data/icons/active/64.png
index 320d281..aebdf46 100644
Binary files a/data/icons/active/64.png and b/data/icons/active/64.png differ
diff --git a/data/options/index.html b/data/options/index.html
index aeca2cd..7388bcb 100644
--- a/data/options/index.html
+++ b/data/options/index.html
@@ -8,6 +8,10 @@
       padding: 10px;
     }
     textarea { width: 100%; }
+    .h {
+      text-decoration: underline;
+      text-decoration-style: dashed;
+    }
   </style>
 </head>
 
@@ -15,7 +19,7 @@
   <table width=100%>
     <tr>
       <td>
-        <label><input type="radio" name="mode" value="blacklist" id="mode-blacklist"> Black-list mode: Apply the custom user-agent string to all tabs except the tabs with the following top-level hostnames (comma-separated list of hostnames)</label>
+        <label><input type="radio" name="mode" value="blacklist" id="mode-blacklist"> <span class="h">Black-list mode</span>: Apply the custom user-agent string to all tabs except the tabs with the following top-level hostnames (comma-separated list of hostnames)</label>
       </td>
     </tr>
     <tr>
@@ -23,7 +27,7 @@
     </tr>
     <tr>
       <td>
-        <label><input type="radio" name="mode" value="whitelist" id="mode-whitelist"> White-list mode: Only apply the custom user-agent string to the tabs with following top-level hostnames</label>
+        <label><input type="radio" name="mode" value="whitelist" id="mode-whitelist"> <span class="h">White-list mode</span>: Only apply the custom user-agent string to the tabs with following top-level hostnames</label>
       </td>
     </tr>
     <tr>
@@ -31,7 +35,7 @@
     </tr>
     <tr>
       <td>
-        <label><input type="radio" name="mode" value="custom" id="mode-custom"> Custom mode: Try to resolve the user-agent string from the bellow JSON object; otherwise either use the default user-agent string or use the one that user is set from the popup.</label> <a href="#" id="sample">Insert</a> a sample JSON object.
+        <label><input type="radio" name="mode" value="custom" id="mode-custom"> <span class="h">Custom mode</span>: Try to resolve the user-agent string from a JSON object; otherwise either use the default user-agent string or use the one that user is set from the popup. Use "*" as the hostname to match all domains. You can randomly select from multiple user-agent strings by providing an array instead of a string.</label> <a href="#" id="sample">Insert</a> a sample JSON object.
       </td>
     </tr>
     <tr>
diff --git a/data/options/index.js b/data/options/index.js
index 49e2736..c274b6f 100644
--- a/data/options/index.js
+++ b/data/options/index.js
@@ -59,7 +59,9 @@ document.getElementById('sample').addEventListener('click', e => {
 
   document.getElementById('custom').value = JSON.stringify({
     'www.google.com': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36',
-    'www.bing.com': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:57.0) Gecko/20100101 Firefox/57.0'
+    'www.bing.com': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:57.0) Gecko/20100101 Firefox/57.0',
+    'www.example.com': ['random-useragent-1', 'random-user-agent-2'],
+    '*': 'useragent-for-all-hostnames'
   }, null, 2);
 });
 
diff --git a/data/popup/index.css b/data/popup/index.css
index 0d71e90..66ea429 100644
--- a/data/popup/index.css
+++ b/data/popup/index.css
@@ -69,6 +69,7 @@ select {
   border: none;
   user-select: none;
   outline: none;
+  color: #000;
   background: rgba(255,255,255,.5) url(list.svg) no-repeat center right 4px;
   background-size: 8px;
   font-size: 13px;
@@ -147,6 +148,10 @@ select {
   display: none;
 }
 
+[data-cmd="refresh"] {
+  margin-left: 2px;
+  margin-right: 2px;
+}
 [data-cmd="apply"] {
   color: #fff;
   background-color: #3c923c;
@@ -161,6 +166,7 @@ select {
   border: solid 1px #ec9730;
 }
 
+[data-cmd="options"],
 [data-cmd="refresh"] {
   background-color: #f5f5f5;
 }
diff --git a/data/popup/index.html b/data/popup/index.html
index 8099d81..7b920ea 100644
--- a/data/popup/index.html
+++ b/data/popup/index.html
@@ -146,7 +146,8 @@
     </div>
     <div hbox>
       <input type="search" id="custom" placeholder="Filter items">
-      <input type="button" value="Refresh Tab" title="Refresh the current page" style="margin-left: 2px;" data-cmd="refresh">
+      <input type="button" value="Refresh Tab" title="Refresh the current page" data-cmd="refresh">
+      <input type="button" value="Options" title="Open options page" style="margin-left: 2px;" data-cmd="options">
     </div>
     <div hbox id="agent" pack="center" align="center">
       User-Agent String:&nbsp;
diff --git a/data/popup/index.js b/data/popup/index.js
index 76bbcef..7737c05 100644
--- a/data/popup/index.js
+++ b/data/popup/index.js
@@ -182,5 +182,8 @@ document.addEventListener('click', ({target}) => {
         bypassCache: true
       }));
     }
+    else if (cmd === 'options') {
+      chrome.runtime.openOptionsPage();
+    }
   }
 });
diff --git a/manifest.json b/manifest.json
index 2f1c8d8..a7a2493 100755
--- a/manifest.json
+++ b/manifest.json
@@ -2,7 +2,7 @@
   "manifest_version": 2,
   "name": "User-Agent Switcher",
   "short_name": "useragent-switcher",
-  "version": "0.2.0",
+  "version": "0.2.3",
 
   "description": "Spoofs User-Agent strings of your browser",
 
@@ -16,12 +16,16 @@
   ],
 
   "icons": {
-    "16": "data/icons/16.png",
-    "32": "data/icons/32.png",
-    "48": "data/icons/48.png",
-    "64": "data/icons/64.png",
-    "128": "data/icons/128.png",
-    "256": "data/icons/256.png"
+    "16": "data/icons/active/16.png",
+    "18": "data/icons/active/18.png",
+    "19": "data/icons/active/19.png",
+    "32": "data/icons/active/32.png",
+    "36": "data/icons/active/36.png",
+    "38": "data/icons/active/38.png",
+    "48": "data/icons/active/48.png",
+    "64": "data/icons/active/64.png",
+    "128": "data/icons/active/128.png",
+    "256": "data/icons/active/256.png"
   },
   "background":{
     "scripts":[
@@ -49,5 +53,11 @@
     "match_about_blank": true,
     "matches": ["*://*/*"],
     "js": ["data/inject.js"]
-  }]
+  }],
+  "applications": {
+    "gecko": {
+      "id": "{a6c4a591-f1b2-4f03-b3ff-767e5bedf4e7}",
+      "strict_min_version": "52.0"
+    }
+  }
 }