Firefox扩展没有运行内容脚本

Question

我是Firefox扩展开发的新手，我正在尝试从Chrome移植Tab Stacker扩展程序。到目前为止，我有这些文件：

$ tree
.
├── chrome.manifest
├── content
│   └── content.js
└── install.rdf

chrome.mainfest：

content tabstacker  content/

的install.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>

（隐藏的电子邮件地址）

含量/ content.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（我不确定哪个控制台console.log记录到扩展名）。但即使在重新启动浏览器之后，也都没有显示。扩展程序显示在加载项管理器中。我做错了什么？

Answer 1

看起来您正在尝试使用SDK模块而不使用Add-Ons SDK，否则该树看起来会完全不同。查看Add-On SDK文档和使用入门部分：

https://developer.mozilla.org/en-US/Add-ons/SDK