我在试着打开和关闭分机。在此期间，图标应该从彩色变为灰色，然后在重新打开后返回彩色。当它从彩色变为灰色时，它工作正常，然后在尝试将其返回后返回错误：

Could not load action icon '/images/non-grey/icon16.png'.
Could not load action icon '/images/non-grey/icon32.png'.
Could not load action icon '/images/non-grey/icon48.png'.
Could not load action icon '/images/non-grey/icon128.png'.

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这就是代码：

chrome.runtime.onMessage.addListener(function(request, sender, sendResponse) {
  console.log(request.action);
  if (enabled) {
    if (request.action == "check-window") {
      let querying = chrome.tabs.query({
        title: "ImageSafetyBackgroundProcess",               
    }, function(array_of_Tabs) {
        if (array_of_Tabs.length == 0) {
          window.open("popup.html", "popup");
        }
      });
    }
  }
  if (request.action == "enable-disable") {
    if (enabled) {
      enabled = false;
      chrome.browserAction.setIcon({ path: {
        16: "/images/grey/greyedicon16.png",
        32: "/images/grey/greyedicon32.png",
        48: "/images/grey/greyedicon48.png",
        128: "/images/grey/greyedicon128.png"
      }});
      let querying = chrome.tabs.query({
        title: "ImageSafetyBackgroundProcess",               
        }, function(array_of_Tabs) {
        if (array_of_Tabs.length > 0) {
          chrome.tabs.remove(array_of_Tabs[0].id, function() { });
        }
      });
    }
    else {
      enabled = true;
      window.open("popup.html", "popup");
      chrome.browserAction.setIcon({ path: {
        16: "/images/non-grey/icon16.png",
        32: "/images/non-grey/icon32.png",
        48: "/images/non-grey/icon48.png",
        128: "/images/non-grey/icon128.png"
      }});
    }
  } });

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Manifest.json:

{
  "manifest_version": 2,
  "name": "Borderify",
  "version": "1.0",
  "description": "Adds a red border to all webpages matching mozilla.org.",
  "web_accessible_resources": [
    "images/question.png"
  ],
  "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'",
  "permissions": [
    "tabs",
    "activeTab",
    "storage",
    "downloads",
    "webRequest",
    "webRequestBlocking",
    "<all_urls>"
  ],
  "browser_action": {
    "default_popup": "button.html",
    "default_icon": {
      "16": "/images/icon16.png",
      "32": "/images/icon32.png",
      "48": "/images/icon48.png",
      "128": "/images/icon128.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "content-script.js"
      ],
      "run_at": "document_end"
    }
  ],
  "background": {
    "scripts": [
      "main.js"
    ]
  }
}

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