7 files changed, 23 insertions, 16 deletions
diff --git a/src/bg/RequestGuard.js b/src/bg/RequestGuard.js
index 10ccfdb..31d79f5 100644
--- a/src/bg/RequestGuard.js
+++ b/src/bg/RequestGuard.js
@@ -114,7 +114,7 @@ var RequestGuard = (() => {
         : (numAllowed ? "sub" : "no");
       let showBadge = ns.local.showCountBadge && numBlocked > 0;
       let browserAction = browser.browserAction;
-      if (!browserAction.setIcon) { // mobile
+      if (!browserAction.setIcon) { // Fennec
         browserAction.setTitle({tabId, title: `NoScript (${numBlocked})`});
         return;
       }
@@ -123,7 +123,7 @@ var RequestGuard = (() => {
       browserAction.setBadgeText({tabId, text: showBadge ? numBlocked.toString() : ""});
       browserAction.setBadgeBackgroundColor({tabId, color: [128, 0, 0, 160]});
       browserAction.setTitle({tabId,
-        title: `${VERSION_LABEL} \n${enforced ?
+        title: UA.mobile ? "NoScript" : `${VERSION_LABEL} \n${enforced ?
             _("BlockedItems", [numBlocked, numAllowed + numBlocked]) + ` \n${report}`
             : _("NotEnforced")}`
       });
diff --git a/src/bg/main.js b/src/bg/main.js
index b1874f4..b09dcb1 100644
--- a/src/bg/main.js
+++ b/src/bg/main.js
@@ -109,12 +109,12 @@
       // wiring main UI
       let ba = browser.browserAction;
       if ("setIcon" in ba) {
-        //desktop
+        //desktop or Fenix
         ba.setPopup({
           popup: popupURL
         });
       } else {
-        // mobile
+        // Fennec
         ba.onClicked.addListener(async tab => {
           try {
             await browser.tabs.remove(await browser.tabs.query({
@@ -250,9 +250,10 @@
       deferWebTraffic(this.initializing = init(),
         async () => {
           Commands.install();
-
-          this.devMode = (await browser.management.getSelf()).installType === "development";
-          if (!this.local.debug) {
+          try {
+            this.devMode = (await browser.management.getSelf()).installType === "development";
+          } catch(e) {}
+          if (!(this.local.debug || this.devMode)) {
             debug = () => {}; // suppress verbosity
           }
         });
diff --git a/src/lib/UA.js b/src/lib/UA.js
index f679f95..57e98ae 100644
--- a/src/lib/UA.js
+++ b/src/lib/UA.js
@@ -1,10 +1,12 @@
 {
   let mozWebExtUrl = document.URL.startsWith("moz-");
   let isMozilla = mozWebExtUrl || typeof window.wrappedJSObject === "object";
+  let mobile = false;
   if (isMozilla) {
     if (mozWebExtUrl) {
       // help browser-specific UI styling
       document.documentElement.classList.add("mozwebext");
+      mobile = !("windows" in browser);
     }
   } else {
     // shims for non-Mozilla browsers
@@ -14,6 +16,7 @@
   }
 
   var UA = {
-    isMozilla
+    isMozilla,
+    mobile,
   };
 }
diff --git a/src/ui/options.css b/src/ui/options.css
index 652a9bf..4653786 100644
--- a/src/ui/options.css
+++ b/src/ui/options.css
@@ -42,6 +42,7 @@ body {
   justify-content: flex-end;
   width: 100%;
   text-align: right;
+  margin: 0 0 2px 0;
 }
 
 #sect-general {
diff --git a/src/ui/popup.js b/src/ui/popup.js
index 07c21e4..63f9eee 100644
--- a/src/ui/popup.js
+++ b/src/ui/popup.js
@@ -65,7 +65,11 @@ addEventListener("unload", e => {
     {
       let clickHandlers = {
         "options": e => {
-          browser.runtime.openOptionsPage();
+          if (UA.mobile) { // Fenix fails on openOptionsPage
+            browser.tabs.create({url: browser.extension.getURL("/ui/options.html")});
+          } else {
+            browser.runtime.openOptionsPage();
+          }
           close();
         },
         "close": close,
diff --git a/src/ui/ui.css b/src/ui/ui.css
index 1d40030..437758d 100644
--- a/src/ui/ui.css
+++ b/src/ui/ui.css
@@ -410,15 +410,13 @@ fieldset {
 
 legend {
   font-weight: bold;
-  display: inline;
-  position: absolute;
-  top: 0.25em;
-  left: 1em;
-  white-space: nowrap;
+  display: block;
 }
 .customizer legend {
-  font-weight: bold;
   font-size: 0.75em;
+  position: absolute;
+  top: 0.25em;
+  left: 1em;
 }
 
 #presets .https-only {
diff --git a/src/ui/ui.js b/src/ui/ui.js
index dafba4f..f562edd 100644
--- a/src/ui/ui.js
+++ b/src/ui/ui.js
@@ -21,7 +21,7 @@ var UI = (() => {
         "/lib/tld.js",
         "/common/Policy.js",
       ];
-      this.mobile = !("windows" in browser);
+      this.mobile = UA.mobile;
       if (this.mobile) {
         document.documentElement.classList.toggle("mobile", true);
         scripts.push("/lib/fastclick.js");