Noissue - Add version check for runtime.openOptionsPage for Firefox for Android

ext/background.js

Index: ext/background.js
===================================================================
--- a/ext/background.js
+++ b/ext/background.js
@@ -694,21 +694,24 @@
     },
     onChanged: chrome.storage.onChanged
   };
 
   /* Options */
 
   ext.showOptions = callback =>
   {
+    let info = require("info");
+
     if ("openOptionsPage" in chrome.runtime &&
-        // Firefox for Android does have a runtime.openOptionsPage but it
-        // doesn't do anything.
+        // Some versions of Firefox for Android before version 57 do have a
+        // runtime.openOptionsPage but it doesn't do anything.
         // https://bugzilla.mozilla.org/show_bug.cgi?id=1364945
-        require("info").application != "fennec")
+        (info.application != "fennec" ||
+         parseInt(info.applicationVersion, 10) >= 57))
     {
       if (!callback)
       {
         chrome.runtime.openOptionsPage();
       }
       else
       {
         chrome.runtime.openOptionsPage(() =>
@@ -727,17 +730,17 @@
             }
           });
         });
       }
     }
     else
     {
       // Edge does not yet support runtime.openOptionsPage (tested version 38)
-      // nor does Firefox for Android,
+      // nor does Firefox for Android before version 57,
       // and so this workaround needs to stay for now.
       // We are not using extension.getURL to get the absolute path here
       // because of the Edge issue:
       // https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/10276332/
       let open = win =>
       {
         let optionsUrl = "options.html";
         let queryInfo = {url: optionsUrl};