Window.sidebar | Web API

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非标
此特征是非标准的，且不在标准轨道中。不要在面向 Web 的生产站点中使用它：它不适用于每个用户。实现之间可能存在大的不兼容性，且行为将来可能改变。

Returns a sidebar object which contains several methods for registering add-ons with the browser.

The sidebar object returned has the following methods:

方法	Description (SeaMonkey)	Description (Firefox)
`addPanel( title , contentURL , "")`	Adds a sidebar panel.	Obsolete since Firefox 23 (only present in SeaMonkey). End users can use the "load this bookmark in the sidebar" option instead. Also see Creating a Firefox sidebar.
`addPersistentPanel( title , contentURL , "")`	Adds a sidebar panel, which is able to work in the background.
`AddSearchProvider( descriptionURL)`	Dummy function; does nothing. See Autodiscovery of search plugins .
`addSearchEngine( engineURL , iconURL , suggestedTitle , suggestedCategory )` Obsolete since Gecko 44	Installs a search engine (Sherlock). Adding Sherlock search engines contains more details. 注意 : This was made obsolete in Firefox 44, and has been removed completely in Firefox 59.
`IsSearchProviderInstalled( descriptionURL)`	Indicates if a specific search provider (OpenSearch) is installed.

Mozilla-specific. Not part of any standard.

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`sidebar` 弃用非标	Chrome No	Edge No	Firefox Yes Yes From Firefox 78 `AddSearchProvider()` does nothing, as the specification requires.	IE ?	Opera ?	Safari ?	WebView Android No	Chrome Android No	Firefox Android Yes	Opera Android ?	Safari iOS ?	Samsung Internet Android No