相当于Firefox扩展中的内容脚本？

Question

我是Firefox及其扩展的新手。有没有像每次页面加载时使用JavaScript的脚本？我的Chrome扩展插入了一个使用js创建链接标签的css文件。我该如何将它移植到Firefox？

Answer 1

您需要pageMod API。

var pageMod = require("page-mod"); 
pageMod.PageMod({ 
    include: "*.example.org", 
    contentScript: 'window.alert("Page matches ruleset");' 
}); 

Answer 2

您可以使用mozIJSSubScriptLoader来执行JavaScript ：每次webpage loads时间（铬//myExtension/content/script.js）。下面是你需要根据自己的chrome目录

window.addEventListener("load", function load(event){ 
    window.removeEventListener("load", load, false); //remove listener, no longer needed 
    myExtension.init(); 
},false); 

var myExtension = { 
    init: function() { 
    var appcontent = document.getElementById("appcontent"); // browser 
    if(appcontent){ 
     appcontent.addEventListener("DOMContentLoaded", myExtension.onPageLoad, true); 
    } 
    var messagepane = document.getElementById("messagepane"); // mail 
    if(messagepane){ 
     messagepane.addEventListener("load", function(event) { myExtension.onPageLoad(event); }, true); 
    } 
    }, 

    onPageLoad: function(aEvent) { 
    var doc = aEvent.originalTarget; // doc is document that triggered "onload" event 
    // do something with the loaded page. 
    // doc.location is a Location object (see below for a link). 
    // You can use it to make your code executed on certain pages only. 
    var loader = Components.classes["@mozilla.org/moz/jssubscript-loader;1"].getService(Components.interfaces.mozIJSSubScriptLoader); 
       loader.loadSubScript("chrome://myExtension/content/script.js", doc); 

    // add event listener for page unload 
    aEvent.originalTarget.defaultView.addEventListener("unload", function(event){ myExtension.onPageUnload(event); }, true); 
    }, 

    onPageUnload: function(aEvent) { 
    // do something 
    } 
}; 

Answer 3

我以前在Firefox使用的Greasemonkey修改示例代码。事实上，Chrome扩展开始是为了模仿Greasemonkey，并且是内容脚本的起源。