Javascript 无法使用userchrome.js在Firefox中禁用ctrl-w

我花了太多时间在linux中使用nano，现在我发现自己正试图在Firefox中使用control-w进行搜索。不幸的是，control-w在Firefox中映射到“close tab”，结果很不幸

我已经加载了userchromeJS加载项（这是Firefox的旧版本，userchromeJS可以使用），并告诉它加载chrome目录中的所有文件：

/*
 * userChromeJS 
 * 
 * This file can be used to customize the functioning of Mozilla's user
 * interface.  Usage and syntax follow below; for useful code snippets see
 * http://mozilla.zeniko.ch/userchrome.js.html.
 */


/* 
 * NOTE: userChromeJS includes an 'import' function to facilitate file management.
 * An absolute path or relative path with Directory name property token can be
 * used, as follows:
 * 
 * // Single file (javascript .js or overlay .xul file)
 * userChrome.import("Full file path");
 * userChrome.import("Relative file path", "Token");
 * // All .js and .xul files in a folder will be loaded. 
 * userChrome.import("Full file folder path");
 * userChrome.import("Relative file folder path/name", "Token");
 * userChrome.import("*", "Token");
 * 
 * NOTE: absolute windows files and folders must be have backslash escaped:
 * "C:\\Program Files\\Mozilla\\scripts\\myscript.js"
 * 
 * Examples:
 * // Import script in [ProfileDir]/chrome/scripts/myscript.js
 * userChrome.import("scripts/myscript.js", "UChrm");
 * // Import script in [Profiles]/scripts/myscript.js (share same script in
 * // multiple profiles
 * userChrome.import("scripts/myscript.js", "DefProfRt");
 * // All .js or .xul in profile chrome directory
 * userChrome.import("*", "UChrm");
 * // Import overlay
 * userChrome.import("C:\\Program Files\\Mozilla\\scripts\\myOverlay.xul");
 * // Import everything in Desktop folder /scripts
 * userChrome.import("scripts", "Desk");
 * // Perhaps the only thing you need in this file.
 * if (location == "chrome://browser/content/browser.xul") {
 *  userChrome.import("scripts", "DefProfRt");
 * }
 */

/* Import all .js or .xul in profile chrome directory */
userChrome.import("*", "UChrm");

并在文件disable_ctrl_w.js中添加了对control-w的拦截，如下所示：

var kwa = document.getElementById('key_closeTab');
if (kwa) kwa.remove();

基于对control-q的拦截：

var kqa = document.getElementById('key_quitApplication');
if (kqa) kqa.remove();

我找不到使用userchrome.js禁用control-w的示例，但根据下面链接中的键定义，我相信key_closeTab是正确的名称

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不幸的是，control-w仍在终止Firefox。Firefox篡改不是我的长裤；有人知道失败在哪里吗

这可能被视为密钥劫持。通常，不允许覆盖浏览器使用的密钥序列。这可能被视为密钥劫持。通常，不允许覆盖浏览器使用的键序列