CKEditor to asp.net doesn't work in Firefox 38.0.5

[Melquisedec]

I'm using CKEditor for asp.net, version 3.6 in my application and it work fine in Chrome and IE but in Firefox it doesn't appear. There is a compatibility issue with that browser and CKEditor?

[Jakub Ś]

Nope. I have checked default CKEditor 3.6.4, 3.6.6.2 and it works as expected.

If it works in one browser but not the other then it might be cache issue. Please clear (This is Not Ctrl+F5 which is cache refresh) it and retry. Please also check firebug console to see if you are getting any errors.

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NOTE:
IE11 is supported from CKEditor 4.3 and IE10 from CKE 3.6.5.

You have written you are using CKEditor for ASP.NET 3.6.4. Please bear in mind that you can update client side version to CKEditor 4.4.8 or 4.5.1

Download CKEditor 3.6.6.2 for ASP.NET, unpack, go to your-ckeditor-aspnet-3.6.6.2-folder\_Samples and delete \ckeditor\ directory. Download FULL package for CKEditor 4.4.8 and extract it to \ckeditor\ directory. Next copy \ckeditor\ directory to your-ckeditor-aspnet-3.6.6.2-folder\_Samples.

In CKEditor 4.1 we have introduced ACF. You can read about it here: ​http://ckeditor.com/blog/Upgrading-to-CKEditor-4.1
​http://ckeditor.com/blog/CKEditor-4.1-RC-Released
​http://docs.ckeditor.com/#!/guide/dev_advanced_content_filter
​http://docs.ckeditor.com/#!/api/CKEDITOR.filter-method-addTransformations
​http://docs.ckeditor.com/#!/api/CKEDITOR.config-cfg-allowedContent
​http://docs.ckeditor.com/#!/api/CKEDITOR.config-cfg-extraAllowedContent

If you plan to use content filter please note that CKEditor for ASP.NET 4.x is still under construction and to change ACF settings you would have to use config.js as it can’t be done from control level.

I haven't test how new CKEditor 4.5.x works in that set up so I can't confirm it with 100% assurance. It should work without problems however I need to test it first.