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All browsers listed in the table below support web pages working in standard mode.

Supported browser(s)Supported version(s)Notes
Web browsersChrome

The latest stable version

Microsoft Internet Explorer (IE)

9.0*, 10.0*, 11.0

* Support of IE 9.0 and 10.0 is available for the SCAYT plugin for CKEditor 4 only.


The compatibility view or quirks mode in IEs is not supported.

Microsoft EdgeThe latest stable version 

Mozilla Firefox

The latest stable version 


The latest stable version on Mac OS X only

Mobile and tablet browsersChrome for AndroidThe latest stable version 
iOS SafariThe latest stable version