将添加＆＃34; chrome_url_overrides＆＃34;转到Chrome扩展程序，停用现有用户的扩展程序？

Question

我在Chrome网上商店中有一个现有的chrome扩展程序，下面给出了类似的manifest.json。

{
    "manifest_version": 2,
    "name": "Extension Name",
    "short_name": "Short Name",
    "description": "Some description",
    "version": "1.0.83",
    "icons" : {
        "16": "something.png",
        "32": "something.png",
        "48": "something.png",
        "96": "something.png",
        "128": "something.png",
        "512": "something.png"
    },  
    "permissions": [ "tabs", "https://*/*", "http://*/*", "storage", "gcm" ],
    "optional_permissions": [ "notifications", "webRequest", "webRequestBlocking" ],
    "page_action": {
        "default_icon": "styles/images/icon.png",
        "default_title": "Name",
        "default_popup": "popup.html"
    },
    "update_url": "https://clients2.google.com/service/update2/crx",
    "content_security_policy": "script-src 'self' https://www.google-analytics.com https://d2xwmjc4uy2hr5.cloudfront.net; object-src 'self'",
    "background": {
        "scripts": ["scripts/jquery-2.1.1.min.js", "scripts/background.js"],
        "persistent": true
    },
    "web_accessible_resources" : ["logo.png"],
    "content_scripts": [
        {
            "js": ["scripts/jquery-2.1.1.min.js", "scripts/bigstuff.js"],
            "run_at": "document_end",
            "matches" : ["<all_urls>"]
        }
     ]
}

现在我想为用户自定义新标签页，这需要我修改清单并添加以下详细信息。

chrome_url_overrides": {
    "newtab": "newtab.html"
}

是否会添加此功能会禁用现有用户的扩展程序？

Answer 1

您的扩展程序不会被Chrome 禁用（但请参阅此答案的结尾！）。仅当更新引入new permission warnings时，才会禁用更新的扩展名（警告：此列表不完整） 要查看新旧扩展程序生成的权限警告，请参阅What message is generated by the chrome “permissions” property in an extension manifest?

的答案

以下评论是摘录from Chromium's source code，接近检查是否可以在没有用户互动的情况下应用扩展程序更新的逻辑：

// We keep track of all permissions the user has granted each extension.
// This allows extensions to gracefully support backwards compatibility
// by including unknown permissions in their manifests. When the user
// installs the extension, only the recognized permissions are recorded.
// When the unknown permissions become recognized (e.g., through browser
// upgrade), we can prompt the user to accept these new permissions.
// Extensions can also silently upgrade to less permissions, and then
// silently upgrade to a version that adds these permissions back.
//
// For example, pretend that Chrome 10 includes a permission "omnibox"
// for an API that adds suggestions to the omnibox. An extension can
// maintain backwards compatibility while still having "omnibox" in the
// manifest. If a user installs the extension on Chrome 9, the browser
// will record the permissions it recognized, not including "omnibox."
// When upgrading to Chrome 10, "omnibox" will be recognized and Chrome
// will disable the extension and prompt the user to approve the increase
// in privileges. The extension could then release a new version that
// removes the "omnibox" permission. When the user upgrades, Chrome will
// still remember that "omnibox" had been granted, so that if the
// extension once again includes "omnibox" in an upgrade, the extension
// can upgrade without requiring this user's approval.

chrome_url_overrides权限。

当我使用以下manifest.json，

执行上述步骤时

{
    "name": "Permission test",
    "version": "1",
    "manifest_version": 2,
    "chrome_url_overrides": { "newtab": "manifest.json" }
}

然后我得到一个没有任何警告的权限对话框（＆＃34;此扩展名不需要特殊权限。＆＃34;）。因此，如果您在更新中添加此清单密钥，则Chrome（使用54及更早版本测试）将不会禁用您的扩展程序。

不意味着您现在可以在不丢失用户的情况下发布扩展程序。用户经常查看“新标签页”页面，如果您在未经他人同意的情况下进行更改，则用户可以删除您的扩展程序，如果他们想要重新获得对新标签页的控制权。

仔细查看Single Purpose Policy of the Chrome Web Store：例如，如果您开始使用与您的扩展程序功能无关的广告页面替换NTP， Chrome网上应用店列表可能会被商店策展人取消。