内容表

• Host permissions
• API permissions
• 范例
• 浏览器兼容性

optional_permissions

"optional_permissions": [
  "*://developer.mozilla.org/*",
  "webRequest"
]
									

使用 optional_permissions key to list permissions that you want to ask for at runtime, after your extension has been installed.

permissions key lists permissions that your extension needs before it can be installed. In contrast, optional_permissions lists permissions that your extension doesn't need at install time but it may ask for after it has been installed. To ask for a permission, use the permissions API. Asking for a permission may present the user with a dialog requesting them to grant the permission to your extension.

For advice on designing your request for runtime permissions, to maximize the likelihood that users grant them, see Request permissions at runtime .

Starting with Firefox 84, users will be able to manage optional permissions from the Firefox Add-ons Manager. Extensions that use optional permissions should listen for browser.permissions.onAdded and browser.permissions.onRemoved API events to know when a user grants or revokes these permissions.

The key can contain two kinds of permissions: host permissions and API permissions.

Host permissions

These are the same as the host permissions you can specify in the permissions key.

API permissions

You can include any of the following here, but not in all browsers: check the compatibility table for browser-specific details.

• activeTab
• background
• bookmarks
• browserSettings
• clipboardRead
• clipboardWrite
• contentSettings
• contextMenus
• Cookie
• debugger
• downloads
• downloads.open
• find
• geolocation
• history
• idle
• management
• nativeMessaging
• notifications
• pageCapture
• privacy
• tabHide
• tabs
• topSites
• webNavigation
• webRequest
• webRequestBlocking

Note that this is a subset of the API permissions allowed in permissions .

Of this set, the following permissions are granted silently, without a user prompt:

• activeTab
• Cookie
• idle
• webRequest
• webRequestBlocking

范例

 "optional_permissions": ["*://developer.mozilla.org/*"]

					

Enable the extension to ask for privileged access to pages under developer.mozilla.org.

  "optional_permissions": ["tabs"]

					

Enable the extension to ask for access to the privileged pieces of the tabs API。

  "optional_permissions": ["*://developer.mozilla.org/*", "tabs"]

					

Enable the extension to ask for both of the above permissions.

浏览器兼容性

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最后修改： Oct 26, 2021 , 由 MDN 贡献者

相关话题

1. 浏览器扩展名
2. 快速入门

   1. What are extensions?
   2. Your first extension
   3. Your second extension
   4. Anatomy of an extension
   5. Example extensions
   6. What next?
3. 概念

   1. Using the JavaScript APIs
   2. Content scripts
   3. Match patterns
   4. Working with files
   5. 国际化
   6. Content Security Policy
   7. Native messaging
   8. Differences between API implementations
   9. Chrome incompatibilities
4. 用户界面

   1. 用户界面
   2. Toolbar button
   3. Address bar button
   4. Sidebars
   5. Context menu items
   6. Options page
   7. Extension pages
   8. Notifications
   9. Address bar suggestions
   10. Developer tools panels
5. 如何

   1. Intercept HTTP requests
   2. Modify a web page
   3. Insert external content
   4. Share objects with page scripts
   5. Add a button to the toolbar
   6. Implement a settings page
   7. Work with the Tabs API
   8. Work with the Bookmarks API
   9. Work with the Cookies API
   10. Work with contextual identities
   11. Interact with the clipboard
   12. Build a cross-browser extension
6. Firefox differentiators
7. JavaScript API

   1. Browser support for JavaScript APIs
   2. alarms
   3. bookmarks
   4. browserAction
   5. browserSettings
   6. browsingData
   7. captivePortal
   8. clipboard
   9. 命令
   10. contentScripts
   11. contextualIdentities
   12. Cookie
   13. devtools
   14. dns
   15. downloads
   16. events
   17. extension
   18. extensionTypes
   19. find
   20. history
   21. i18n
   22. identity
   23. idle
   24. management
   25. menus
   26. notifications
   27. omnibox
   28. pageAction
   29. permissions
   30. pkcs11
   31. privacy
   32. proxy
   33. runtime
   34. search
   35. sessions
   36. sidebarAction
   37. storage
   38. tabs
   39. theme
   40. topSites
   41. 类型
   42. userScripts
   43. webNavigation
   44. webRequest
   45. windows
8. Manifest keys

   1. 介绍

   1. 作者
   2. background
   3. browser_action
   4. browser_specific_settings
   5. chrome_settings_overrides
   6. chrome_url_overrides
   7. 命令
   8. content_scripts
   9. content_security_policy
   10. default_locale
   11. description
   12. developer
   13. devtools_page
   14. dictionaries
   15. externally_connectable
   16. homepage_url
   17. icons
   18. incognito
   19. manifest_version
   20. name
   21. offline_enabled
   22. omnibox
   23. optional_permissions
   24. options_page
   25. options_ui
   26. page_action
   27. permissions
   28. protocol_handlers
   29. short_name
   30. sidebar_action
   31. storage
   32. theme
   33. theme_experiment
   34. user_scripts
   35. version
   36. version_name
   37. web_accessible_resources
9. Extension Workshop

   1. Develop
   2. Publish
   3. Manage
   4. Enterprise
10. Contact us
11. Channels

    1. Add-ons blog
    2. Add-ons forum
    3. Add-ons chat