【发布时间】：2014-05-09 04:50:32
【问题描述】：
我是 Firefox 扩展开发的新手，正在尝试从 Chrome 移植 Tab Stacker 扩展。到目前为止，我有这些文件：
$ tree
.
├── chrome.manifest
├── content
│ └── content.js
└── install.rdf
chrome.mainfest：
content tabstacker content/
安装.rdf：
<?xml version="1.0" encoding="utf-8"?><!-- This Source Code Form is subject to the terms of the Mozilla Public
- License, v. 2.0. If a copy of the MPL was not distributed with this
- file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:em="http://www.mozilla.org/2004/em-rdf#">
<Description about="urn:mozilla:install-manifest">
<em:id>me@gmail.com</em:id>
<em:version>0.1</em:version>
<em:type>2</em:type>
<em:bootstrap>true</em:bootstrap>
<em:unpack>false</em:unpack>
<!-- Firefox -->
<em:targetApplication>
<Description>
<em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
<em:minVersion>29.0</em:minVersion>
<em:maxVersion>29.*</em:maxVersion>
</Description>
</em:targetApplication>
<!-- Front End MetaData -->
<em:name>Tab Stacker</em:name>
<em:description>Moves selected unpinned tabs to the left of the tab bar. Port of the Chrome extension of the same name.</em:description>
<em:creator>James Wood</em:creator>
<em:optionsType>2</em:optionsType>
</Description>
</RDF>
（电子邮件地址隐藏）
内容/内容.js：
var tabs = require('sdk/tabs');
var timeout = -1;
alert('loaded');
tabs.on('activate', function () {
window.clearTimeout(timeout);
alert('activate');
if (!tabs.activeTab.isPinned)
timeout = window.setTimeout(function () {
tabs.activeTab.index = tabs.map(function (t) {
return t.isPinned;
}).reduce(function (acc, x) {
return x ? acc + 1 : acc;
}, 0);
}, 1000);
});
alert 调用用于调试（我不确定console.log 登录到哪个控制台以进行扩展）。但即使在重新启动浏览器后也没有显示。扩展显示在附加组件管理器中。我做错了什么？
【问题讨论】：
标签： javascript firefox firefox-addon