window.external.IsSearchProviderInstalled and window.external.AddSearchProvider will both be defined as methods that are no-ops. This was never implemented in Safari. In IE10, these methods are (mostly) no-ops: IsSearchProviderInstalled always returns 2, and AddSearchProvider always returns S_OK. Firefox still implements this, but notes that it may be removed at any time.



Established standard

Status in Chromium


Enabled by default (tracking bug) in:

  • Chrome for desktop release 54
  • Chrome for iOS release 54
  • Android WebView release 54

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.



Last updated on 2020-11-09