Content of UpdatePanel is not rendered in Firefox 42 after second partial publication

I'm using Firefox 42 (Code works great in IE9, 10, 11, and Chrome).

Consider three DropDownLists dependent within an ASP.net UpdatePanel. A, B, C

When I change A, the values of B are met properly. I'll then to change B, C values are not met.

Partial publication occurs, I can see the fill C codebehind correctly, but the changes are not made in the user interface.

I then continued to do another test.

I changed the values of B and C properly completed. Then I went and changed, the values of B did not update.

Which led to the conclusion that the problem is rendered content during the second partial publication.

Someone has an idea what is the cause?

Just in case someone encounters this problem.

Problem was a bug in AjaxControlToolkit AsyncFileUpload component which related only to Firefox. update the Toolbox to the latest version of fix the problem.

DevExpress Ajax Control Toolkit

Tags: Firefox

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