diff --git a/src/_locales/en/messages.json b/src/_locales/en/messages.json
index 06c1fe69a..ae5dfa641 100644
--- a/src/_locales/en/messages.json
+++ b/src/_locales/en/messages.json
@@ -67,6 +67,86 @@
     "message":"Go to request log",
     "description":"English: Go to request log"
   },
+  "popupSiteInlineScriptEnabled":{
+    "message":"Inline <code>script</code> tags are <b>enabled</b> for this site",
+    "description":""
+  },
+  "popupSiteInlineScriptDisabled":{
+    "message":"Inline <code>script</code> tags are <b>disabled</b> for this site",
+    "description":""
+  },
+  "popupSite1pScriptEnabled":{
+    "message":"1st-party scripts are <b>enabled</b> for this site",
+    "description":""
+  },
+  "popupSite1pScriptDisabled":{
+    "message":"1st-party scripts are <b>disabled</b> for this site",
+    "description":""
+  },
+  "popupSite3pScriptEnabled":{
+    "message":"3rd-party scripts are <b>enabled</b> for this site",
+    "description":""
+  },
+  "popupSite3pScriptDisabled":{
+    "message":"3rd-party scripts are <b>disabled</b> for this site",
+    "description":""
+  },
+  "popupSite1pFrameEnabled":{
+    "message":"1st-party frames are <b>enabled</b> for this site",
+    "description":""
+  },
+  "popupSite1pFrameDisabled":{
+    "message":"1st-party frames are <b>disabled</b> for this site",
+    "description":""
+  },
+  "popupSite3pFrameEnabled":{
+    "message":"3rd-party frames are <b>enabled</b> for this site",
+    "description":""
+  },
+  "popupSite3pFrameDisabled":{
+    "message":"3rd-party frames are <b>disabled</b> for this site",
+    "description":""
+  },
+  "popupDefaultInlineScriptEnabled":{
+    "message":"Inline <code>script</code> tags are <b>enabled</b> everywhere by default",
+    "description":""
+  },
+  "popupDefaultInlineScriptDisabled":{
+    "message":"Inline <code>script</code> tags are <b>disabled</b> everywhere by default",
+    "description":""
+  },
+  "popupDefault1pScriptEnabled":{
+    "message":"1st-party scripts are <b>enabled</b> everywhere by default",
+    "description":""
+  },
+  "popupDefault1pScriptDisabled":{
+    "message":"1st-party scripts are <b>disabled</b> everywhere by default",
+    "description":""
+  },
+  "popupDefault3pScriptEnabled":{
+    "message":"3rd-party scripts are <b>enabled</b> everywhere by default",
+    "description":""
+  },
+  "popupDefault3pScriptDisabled":{
+    "message":"3rd-party scripts are <b>disabled</b> everywhere by default",
+    "description":""
+  },
+  "popupDefault1pFrameEnabled":{
+    "message":"1st-party frames are <b>enabled</b> everywhere by default",
+    "description":""
+  },
+  "popupDefault1pFrameDisabled":{
+    "message":"1st-party frames are <b>disabled</b> everywhere by default",
+    "description":""
+  },
+  "popupDefault3pFrameEnabled":{
+    "message":"3rd-party frames are <b>enabled</b> everywhere by default",
+    "description":""
+  },
+  "popupDefault3pFrameDisabled":{
+    "message":"3rd-party frames are <b>disabled</b> everywhere by default",
+    "description":""
+  },
   "pickerCreate":{
     "message":"Create",
     "description":"English: Create"
@@ -108,7 +188,7 @@
     "description":"English: Make use of context menu where appropriate"
   },
   "settingsExperimentalPrompt":{
-    "message":"Enable experimental features",
+    "message":"Enable experimental features (<a href='https://github.com/gorhill/uBlock/wiki/Experimental-features'>About</a>)",
     "description":"English: Enable experimental features"
   },
   "3pListsOfBlockedHostsPrompt":{
@@ -180,8 +260,8 @@
     "description":"English: One URL per line. Lines prefixed with &lsquo;!&rsquo; will be ignored. Invalid URLs will be silently ignored."
   },
   "3pExternalListsApply":{
-    "message":"Apply",
-    "description":"English: Apply"
+    "message":"Parse",
+    "description":"English: Parse"
   },
   "3pExternalListPurge":{
     "message":"purge cache",
@@ -207,6 +287,10 @@
     "message":"Export",
     "description":"English: Export"
   },
+  "1pExportFilename" : {
+    "message": "ublock-custom-filters_{{datetime}}.txt",
+    "description": "English: ublock-custom-filters_{{datetime}}.txt"
+  },
   "1pApplyChanges":{
     "message":"Apply changes",
     "description":"English: Apply changes"
@@ -223,6 +307,10 @@
     "message":"Export",
     "description":"English: Export"
   },
+  "whitelistExportFilename" : {
+    "message": "ublock-whitelist_{{datetime}}.txt",
+    "description": "English: ublock-whitelist_{{datetime}}.txt"
+  },
   "whitelistApply":{
     "message":"Apply changes",
     "description":"English: Apply changes"
@@ -271,6 +359,10 @@
     "message":"Change log",
     "description":"English: Change log"
   },
+  "aboutWiki":{
+    "message":"Wiki",
+    "description":"English: project' wiki on Github"
+  },
   "aboutCode":{
     "message":"Source code (GPLv3)",
     "description":"English: Source code (GPLv3)"
@@ -280,24 +372,32 @@
     "description":"English: Contributors"
   },
   "aboutBackupDataButton" : {
-    "message": "Backup to file...",
-    "description": "English: Backup to file..."
+    "message": "Backup to file",
+    "description": "English: Backup to file"
+  },
+  "aboutBackupFilename" : {
+    "message": "ublock-backup_{{datetime}}.txt",
+    "description": "English: ublock-backup_{{datetime}}.txt"
   },
   "aboutRestoreDataButton" : {
     "message": "Restore from file...",
     "description": "English: Restore from file..."
   },
   "aboutResetDataButton" : {
-    "message": "Start from scratch...",
-    "description": "English: Start from scratch..."
+    "message": "Reset to default settings...",
+    "description": "English: Reset to default settings..."
   },
   "aboutRestoreDataConfirm" : {
     "message": "All your settings will be overwritten using data backed up on {{time}}, and µBlock will restart.\n\nOverwrite all existing settings using backed up data?",
     "description": "Message asking user to confirm restore"
   },
+  "aboutRestoreDataError" : {
+    "message": "The data could not be read or is invalid",
+    "description": "Message to display when an error occurred during restore"
+  },
   "aboutResetDataConfirm" : {
-    "message": "All your settings will be erased, and µBlock will restart.\n\nReset µBlock to factory settings?",
-    "description": "Message asking user to confirm restore"
+    "message": "All your settings will be removed, and µBlock will restart.\n\nReset µBlock to factory settings?",
+    "description": "Message asking user to confirm reset"
   },
   "errorCantConnectTo":{
     "message":"Unable to connect to {{url}}",
diff --git a/src/about.html b/src/about.html
index 101ffd66f..10eb28053 100644
--- a/src/about.html
+++ b/src/about.html
@@ -13,6 +13,7 @@
 <h2 id="aboutNameVer"></h2>
 <ul>
     <li><a href="https://github.com/gorhill/uBlock/releases" data-i18n="aboutChangelog"></a>
+    <li><a href="https://github.com/gorhill/uBlock/wiki" data-i18n="aboutWiki"></a>
     <li><a href="https://github.com/gorhill/uBlock" data-i18n="aboutCode"></a>
     <li><span data-i18n="aboutContributors"></span>
         <ul>
diff --git a/src/css/popup.css b/src/css/popup.css
index bc2e523ea..c2a6103e6 100644
--- a/src/css/popup.css
+++ b/src/css/popup.css
@@ -79,6 +79,30 @@ p {
     color: #444;
     }
 
+.dynamicFiltering div > .tip {
+    background-color: #fffff4;
+    border: 1px solid #888;
+    border-radius: 7px;
+    bottom: 20vh;
+    box-shadow: 1px 1px 2px 0 rgba(0,0,0,0.8);
+    display: none;
+    font-size: small;
+    left: 8vw;
+    padding: 0.25em;
+    position: fixed;
+    right: 8vw;
+    }
+.dynamicFiltering div:not(.blocked):hover > .tip:nth-of-type(1) {
+    display: block;
+    }
+.dynamicFiltering div.blocked:hover > .tip:nth-of-type(2) {
+    display: block;
+    }
+.dynamicFiltering div > .tip code {
+    background-color: #eee;
+    font: normal monospace;
+    padding: 1px 0;
+    }
 #dynamicFilteringToggler {
     margin: 0;
     border: 0;
diff --git a/src/js/1p-filters.js b/src/js/1p-filters.js
index b0536bac5..57fbad87f 100644
--- a/src/js/1p-filters.js
+++ b/src/js/1p-filters.js
@@ -105,9 +105,12 @@ var exportUserFiltersToFile = function() {
         return;
     }
     var now = new Date();
+    var filename = vAPI.i18n('1pExportFilename')
+        .replace('{{datetime}}', now.toLocaleString())
+        .replace(/ +/g, '_');
     vAPI.download({
         'url': 'data:text/plain;charset=utf-8,' + encodeURIComponent(val),
-        'filename': 'ublock-filters_' + now.toLocaleString().replace(/ +/g, '_') + '.txt'
+        'filename': filename
     });
 };
 
diff --git a/src/js/about.js b/src/js/about.js
index 747bd4a63..8f2329248 100644
--- a/src/js/about.js
+++ b/src/js/about.js
@@ -39,9 +39,12 @@ var exportToFile = function() {
             return;
         }
         var now = new Date();
+        var filename = vAPI.i18n('aboutBackupFilename')
+            .replace('{{datetime}}', now.toLocaleString())
+            .replace(/ +/g, '_');
         vAPI.download({
-            'url': 'data:text/plain;charset=utf-8,' + encodeURIComponent(JSON.stringify(userData)),
-            'filename': 'ublock-backup_' + now.toLocaleString().replace(/ +/g, '_') + '.txt'
+            'url': 'data:text/plain;charset=utf-8,' + encodeURIComponent(JSON.stringify(userData, null, '  ')),
+            'filename': filename
         });
     };
 
@@ -55,10 +58,24 @@ var handleImportFilePicker = function() {
         var userData;
         try {
             userData = JSON.parse(this.result);
+            if ( typeof userData !== 'object' ) {
+                throw 'Invalid';
+            }
+            if ( typeof userData.userSettings !== 'object' ) {
+                throw 'Invalid';
+            }
+            if ( typeof userData.netWhitelist !== 'string' ) {
+                throw 'Invalid';
+            }
+            if ( typeof userData.filterLists !== 'object' ) {
+                throw 'Invalid';
+            }
         }
         catch (e) {
+            userData = undefined;
         }
         if ( userData === undefined ) {
+            window.alert(vAPI.i18n('aboutRestoreDataError'));
             return;
         }
         var time = new Date(userData.timeStamp);
diff --git a/src/js/whitelist.js b/src/js/whitelist.js
index fe731c668..31f66729b 100644
--- a/src/js/whitelist.js
+++ b/src/js/whitelist.js
@@ -99,9 +99,12 @@ var exportWhitelistToFile = function() {
         return;
     }
     var now = new Date();
+    var filename = vAPI.i18n('whitelistExportFilename')
+        .replace('{{datetime}}', now.toLocaleString())
+        .replace(/ +/g, '_');
     vAPI.download({
         'url': 'data:text/plain;charset=utf-8,' + encodeURIComponent(val),
-        'filename': 'ublock-whitelist_' + now.toLocaleString().replace(/ +/g, '_') + '.txt'
+        'filename': filename
     });
 };
 
diff --git a/src/popup.html b/src/popup.html
index 8857d86bd..3325320fe 100644
--- a/src/popup.html
+++ b/src/popup.html
@@ -11,18 +11,18 @@
 <body>
 <h4 title="popupTipDashboard">v<span id="version"></span></h4>
 <div>
-<p id="switch" data-i18n-tip="popupPowerSwitchInfo"><span class="fa">&#xf011;</span></p>
-<p id="switch-hint"></p>
-<p style="font-size: 16px;" data-i18n="popupBlockedRequestPrompt"></p>
-<p id="stats">
-    <span data-i18n="popupBlockedOnThisPagePrompt"></span>&ensp;
-    <span id="gotoPick" class="fa tool" data-i18n-tip="popupTipPicker" data-tip-anchor="top">&#xf1fb;</span>&ensp;
-    <span id="gotoLog" class="fa tool" data-i18n-tip="popupTipLog" data-tip-anchor="top">&#xf06e;</span>
-    </p>
-<p id="page-blocked">?</p>
-<p id="stats" data-i18n="popupBlockedSinceInstallPrompt"></p>
-<p id="total-blocked">?</p>
-</div>
+    <p id="switch" data-i18n-tip="popupPowerSwitchInfo"><span class="fa">&#xf011;</span></p>
+    <p id="switch-hint"></p>
+    <p style="font-size: 16px;" data-i18n="popupBlockedRequestPrompt"></p>
+    <p id="stats">
+        <span data-i18n="popupBlockedOnThisPagePrompt"></span>&ensp;
+        <span id="gotoPick" class="fa tool" data-i18n-tip="popupTipPicker" data-tip-anchor="top">&#xf1fb;</span>&ensp;
+        <span id="gotoLog" class="fa tool" data-i18n-tip="popupTipLog" data-tip-anchor="top">&#xf06e;</span>
+        </p>
+    <p id="page-blocked">?</p>
+    <p id="stats" data-i18n="popupBlockedSinceInstallPrompt"></p>
+    <p id="total-blocked">?</p>
+    </div>
 
 <div id="dynamicFilteringToggler" class="fa on">
     <div></div>
@@ -30,28 +30,59 @@
     <div></div>
     <div></div>
     <a href="https://github.com/gorhill/uBlock/wiki/Dynamic-filtering" target="_blank">?</a>
-</div>
+    </div>
+
 
 <div id="dynamicFilteringContainer">
-<div class="dynamicFiltering local" data-scope=".">
-    <div data-first-party data-type="inline-script"></div>
-    <div data-first-party data-type="script"></div>
-    <div data-type="script"></div>
-    <div data-first-party data-type="sub_frame"></div>
-    <div data-type="sub_frame"></div>
-    <div class="label">&lt;script&gt;</div>
-    <div class="label">&lt;iframe&gt;</div>
-</div>
-<div class="dynamicFiltering global" data-scope="/">
-    <div data-first-party data-type="inline-script"></div>
-    <div data-first-party data-type="script"></div>
-    <div data-type="script"></div>
-    <div data-first-party data-type="sub_frame"></div>
-    <div data-type="sub_frame"></div>
-    <div class="label">&lt;script&gt;</div>
-    <div class="label">&lt;iframe&gt;</div>
-</div>
-</div>
+    <div class="dynamicFiltering local" data-scope=".">
+        <div data-first-party data-type="inline-script">
+            <div class="tip" data-i18n="popupSiteInlineScriptEnabled"></div>
+            <div class="tip" data-i18n="popupSiteInlineScriptDisabled"></div>
+            </div>
+        <div data-first-party data-type="script">
+            <div class="tip" data-i18n="popupSite1pScriptEnabled"></div>
+            <div class="tip" data-i18n="popupSite1pScriptDisabled"></div>
+            </div>
+        <div data-type="script">
+            <div class="tip" data-i18n="popupSite3pScriptEnabled"></div>
+            <div class="tip" data-i18n="popupSite3pScriptDisabled"></div>
+            </div>
+        <div data-first-party data-type="sub_frame">
+            <div class="tip" data-i18n="popupSite1pFrameEnabled"></div>
+            <div class="tip" data-i18n="popupSite1pFrameDisabled"></div>
+            </div>
+        <div data-type="sub_frame">
+            <div class="tip" data-i18n="popupSite3pFrameEnabled"></div>
+            <div class="tip" data-i18n="popupSite3pFrameDisabled"></div>
+            </div>
+        <div class="label">&lt;script&gt;</div>
+        <div class="label">&lt;iframe&gt;</div>
+        </div>
+    <div class="dynamicFiltering global" data-scope="/">
+        <div data-first-party data-type="inline-script">
+            <div class="tip" data-i18n="popupDefaultInlineScriptEnabled"></div>
+            <div class="tip" data-i18n="popupDefaultInlineScriptDisabled"></div>
+            </div>
+        <div data-first-party data-type="script">
+            <div class="tip" data-i18n="popupDefault1pScriptEnabled"></div>
+            <div class="tip" data-i18n="popupDefault1pScriptDisabled"></div>
+            </div>
+        <div data-type="script">
+            <div class="tip" data-i18n="popupDefault3pScriptEnabled"></div>
+            <div class="tip" data-i18n="popupDefault3pScriptDisabled"></div>
+            </div>
+        <div data-first-party data-type="sub_frame">
+            <div class="tip" data-i18n="popupDefault1pFrameEnabled"></div>
+            <div class="tip" data-i18n="popupDefault1pFrameDisabled"></div>
+            </div>
+        <div data-type="sub_frame">
+            <div class="tip" data-i18n="popupDefault3pFrameEnabled"></div>
+            <div class="tip" data-i18n="popupDefault3pFrameDisabled"></div>
+            </div>
+        <div class="label">&lt;script&gt;</div>
+        <div class="label">&lt;iframe&gt;</div>
+        </div>
+    </div>
 <script src="js/vapi-common.js"></script>
 <script src="js/vapi-client.js"></script>
 <script src="js/vapi-appinfo.js"></script>
diff --git a/src/settings.html b/src/settings.html
index 34c57eed9..242370e09 100644
--- a/src/settings.html
+++ b/src/settings.html
@@ -22,7 +22,6 @@ ul {
     <li><input id="icon-badge" type="checkbox"><label data-i18n="settingsIconBadgePrompt" for="icon-badge"></label>
     <li><input id="context-menu-enabled" type="checkbox"><label data-i18n="settingsContextMenuPrompt" for="context-menu-enabled"></label>
     <li><input id="experimental-enabled" type="checkbox"><label data-i18n="settingsExperimentalPrompt" for="experimental-enabled"></label>
-    (<a href="https://github.com/gorhill/uBlock/wiki/Experimental-features" style="font-style:italic">Experimental features</a>)
 </ul>
 
 <script src="js/vapi-common.js"></script>