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I recently added SSRS Reports to our C# .NET application using SSRS 2008 R2 and ReportViewer 2010 (remote processing). When I view a report using any version of Firefox the "Report is being generated" message and progress spinner are not being displayed. Is this documented somewhere as a known issue in Firefox? I have done a lot of research regarding what is not supportable in browsers other than IE but I cannot find anything that specifically addresses the progress spinner and message. Thanks.

Reason is, Browser displays SSRS report data thru IFrame. In Firefox, the IFRAME's height defaults to a few hundred pixels, so that you can see the top 2 inches of the report. In IE, IFrames automatically fixed to Data height, so it works fine in IE.

To Fix the Issue in Firefox, you can try the below solution

1. Go to the following Location, where SQL Server is installed
..\Program Files\Microsoft SQL Server\MSSQL.3\Reporting Services\ReportServer\Pages
2. Open ReportViewer.aspx File
3. add the style property marked in bold and blue color, Then try this
style="display:table; margin: 0px; overflow: hidden" ID="ReportViewerControl" runat="server" />
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Shingala Anil 8-Aug-12 2:42am    
<body style="margin: 0px; overflow: auto">
<form style="width: 100%; height: 100%" runat="server" id="ReportViewerForm">
<asp:ScriptManager ID="AjaxScriptManager" AsyncPostBackTimeout="0" runat="server" />
<RS:ReportViewerHost Style="display: table; margin: 0px; overflow: hidden" ID="ReportViewerControl"
runat="server" />

i Change as per ypur suggetion but still spinner doesnot display...
As an alternative, you can try this solution.
ADD the following code to the ReportingServices.css file (by default, it&#39;s found in &quot;C:\Program Files\Microsoft SQL Server\MSSQL.3\Reporting Services\ReportManager\Styles\&quot;):</pre>
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André Kraak 1-Aug-12 16:36pm    
I think a part of your solution got lost.
You might want to correct it.
Shingala Anil 8-Aug-12 2:46am which class i can change??

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