网站可以检测到正在使用哪些浏览器扩展吗? [英] Can a Website detect what browser extensions are being used?

问题描述

网站可以检测到正在使用哪些浏览器扩展吗?特别是在这种情况下，扩展程序的作者希望防止识别用户何时使用扩展程序.因此，作为一个通用示例，Yahoo！的程序员可以使用它吗?编写代码，以便www.yahoo.com可以知道用户何时使用Firebug?如果雅虎！可以做到这一点，Firebug的制造商有什么办法可以防止这种情况发生?

Can a website detect what browser extensions are being used? Specifically in this case, the author of the extension wishes to prevent websites from identifying when users are using the extension. So, for a generic example, could the programmers at Yahoo! write code so that www.yahoo.com could tell when it's users were using Firebug? And if Yahoo! could do this, is there anything that the makers of Firebug could do to prevent this?

推荐答案

看起来您可以使用javascript在Firefox中检测到其中的一些，这是一篇文章:

Looks like you can detect some of them in Firefox using javascript, here is an article:

http://jeremiahgrossman.blogspot. com/2006/08/i-know-what-youve-got-firefox.html

还有一个:

http://ha.ckers.org/blog/20060823/detecting -firefox-extensions/

检测方法如下:

// popular extensions.
var e = {
 "Adblock Plus" : "chrome://adblockplus/skin/adblockplus.png",
 "Auto Copy" : "chrome://autocopy/skin/autocopy.png",
 "ColorZilla" : "chrome://colorzilla/skin/logo.png",
 "Customize Google" : "chrome://customizegoogle/skin/32x32.png",
 "DownThemAll!" : "chrome://dta/content/immagini/icon.png",
 "Faster Fox" : "chrome://fasterfox/skin/icon.png",
 "Flash Block" : "chrome://flashblock/skin/flash-on-24.png",
 "FlashGot" : "chrome://flashgot/skin/icon32.png",
 "Forecastfox" : "chrome://forecastfox/skin/images/icon.png",
 "Google Toolbar" : "chrome://google-toolbar/skin/icon.png",
 "Greasemonkey" : "chrome://greasemonkey/content/status_on.gif",
 "IE Tab" : "chrome://ietab/skin/ietab-button-ie16.png",
 "IE View" : "chrome://ieview/skin/ieview-icon.png",
 "JS View" : "chrome://jsview/skin/jsview.gif",
 "Live HTTP Headers" : "chrome://livehttpheaders/skin/img/Logo.png",
 "MeasureIt" : "chrome://measureit/skin/measureit.png",
 "SEO For Firefox" : "chrome://seo4firefox/content/icon32.png",
 "SEOpen" : "chrome://seopen/skin/seopen.png",
 "Search Status" : "chrome://searchstatus/skin/cax10.png",
 "Server Switcher" : "chrome://switcher/skin/icon.png",
 "StumbleUpon" : "chrome://stumbleupon/content/skin/logo32.png",
 "Tab Mix Plus" : "chrome://tabmixplus/skin/tmp.png",
 "Torrent-Search Toolbar" : "chrome://torrent-search/skin/v.png",
 "User Agent Switcher" : "chrome://useragentswitcher/content/logo.png",
 "View Source With" : "chrome://viewsourcewith/skin/ff/tb16.png",
 "Web Developer" : "chrome://webdeveloper/content/images/logo.png",
 "Unhide Passwords" : "chrome://unhidepw/skin/unhidepw.png",
 "UrlParams" : "chrome://urlparams/skin/urlparams32.png",
 "NewsFox" : "chrome://newsfox/skin/images/home.png",
 "Add N Edit Cookies" : "chrome://addneditcookies/skin/images/anec32.png",
 "GTDGmail" : "chrome://gtdgmail/content/gtd_lineitem.png",
 "QuickJava" : "chrome://quickjava/content/js.png",
 "Adblock Filterset.G Updater" : "chrome://unplug/skin/unplug.png",
 "BBCode" : "chrome://bbcode/skin/bbcode.png",
 "BugMeNot" : "chrome://bugmenot/skin/bugmenot.png",
 "ConQuery" : "chrome://conquery/skin/conquery.png",
 "Download Manager Tweak" : "chrome://downloadmgr/skin/downloadIcon.png",
 "Extended Cookie Manager" : "chrome://xcm/content/allowed.png",
 "FireBug" : "chrome://firebug/content/firebug32.png",
 "FoxyTunes" : "chrome://foxytunes/skin/logo.png",
 "MR Tech Disable XPI Install Delay" : "chrome://disable_xpi_delay/content/icon.png",
 "SessionSaver .2" : "chrome://sessionsaver/content/ss.png",
 "spooFX" : "chrome://spoofx/skin/main/spoofx.png",
 "Statusbar Clock" : "chrome://timestatus/skin/icon.png",
 "Torbutton" : "chrome://torbutton/skin/bigbutton_gr.png",
 "UnPlug" : "chrome://unplug/skin/unplug.png",
 "View Source Chart" : "chrome://vrs/skin/vrssmall.png",
 "XPather" : "chrome://xpather/content/iconka.png", 

};

if (is_mozilla) {
 showExtensions(); 
}

function showExtensions() {
 for (var i in e) {
  var img = document.createElement("img");
  img.setAttribute("border", '0');
  img.setAttribute("width", '0');
  img.setAttribute("height", '0');
  img.setAttribute("onload", "document.getElementById('ext').
appendChild(document.createElement('li')).innerHTML='" + i + "'");
  img.setAttribute("src", e[i]);
 }

}

因此，为了防止这种检测，您不需要具有可识别插件的唯一资源或将您的资源命名为与要屏蔽的现有插件相同的名称.

So, looks like to prevent this kind of detection you don't need to have unique resources that can identify plugin or name your resource the same name as existing plugin to mask.

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