From 3557097c72b8cb8fab7b744a703086d347c4407d Mon Sep 17 00:00:00 2001
From: Mikhail <m.donsk@ya.ru>
Date: Thu, 18 Jan 2018 07:28:25 +1000
Subject: [PATCH] check if contextMenus is available to make it possible to run
 in mobile firefox browser.

---
 extension/manifest.json |  2 +-
 src/entry/background.js | 32 +++++++++++++++++---------------
 2 files changed, 18 insertions(+), 16 deletions(-)

diff --git a/extension/manifest.json b/extension/manifest.json
index dee320f..74e1e6b 100644
--- a/extension/manifest.json
+++ b/extension/manifest.json
@@ -1,7 +1,7 @@
 {
   "manifest_version": 2,
   "name": "Leo Translate",
-  "version": "1.8.6",
+  "version": "1.8.7",
 
   "description": "Translate words on the internet pages using LinguaLeo API and add words to the LinguaLeo Dictionary.",
 
diff --git a/src/entry/background.js b/src/entry/background.js
index 4f81827..2d1012b 100644
--- a/src/entry/background.js
+++ b/src/entry/background.js
@@ -10,21 +10,23 @@ import {
 import { removeHtmlTags } from '../helpers';
 
 // Create context item
-chrome.contextMenus.create({
-  id: 'leo-translate',
-  title: 'Translate with Leo',
-  contexts: ['selection'],
-  onclick: (info, tab) => {
-    chrome.tabs.sendMessage(tab.id, {
-      id: CONTENT_OPEN_POPUP,
-      text: info.selectionText,
-      context: ''
-    });
-  },
-  icons: {
-    '16': '../icons/icon.svg'
-  }
-});
+if (chrome.contextMenus !== undefined) {
+  chrome.contextMenus.create({
+    id: 'leo-translate',
+    title: 'Translate with Leo',
+    contexts: ['selection'],
+    onclick: (info, tab) => {
+      chrome.tabs.sendMessage(tab.id, {
+        id: CONTENT_OPEN_POPUP,
+        text: info.selectionText,
+        context: ''
+      });
+    },
+    icons: {
+      '16': '../icons/icon.svg'
+    }
+  });
+}
 
 // Listen for message to show in system notification
 chrome.runtime.onMessage.addListener((message, sender) => {