By default SSRS Reports do not render in Chrome, Firefox and Safari.  However, there's a hack that may be enforced to get this working. To fix the matter, we'd like to create a custom stylesheet for SSRS.  The new style sheet will use media queries to focus on the non-IE browsers.  So, In theory, i.e. won't be impacted using this solution.  This by no means that an ideal solution, and that i haven't had time to check it in every possible situation.  However, it's worked for me once I understand a user has to view a report in a non-IE browser.  It works best if you're hyper linking to a report from another location.

In SQL Server 2012,  you’ll find the SSRS css files located in 

C:\Program Files\Microsoft SQL Server\MSRS11.[Instance Name]\Reporting Services\ReportServer\Styles.

Create a new css file.  In the file paste the following styles:

@media screen and (-webkit-min-device-pixel-ratio:0)

{    div[style] {        overflow:visible !important;    }}@-moz-document url-prefix() {    div[style] {         overflow:visible !important;    }}

Then you will want to take the contents of the HtmlViewer.css file and paste it before the styles above.  From what I can tell, this will tell SSRS to override the entire default css file with the new css file.

In order to call the report with the new css file you will need to use the following url format:

http://[your server dns name]/[Your SSRS Instance Webservice Path]?[Report Path]&rc.StyleSheet=[the new css file name]

For the example

http://www.yourdomain.com/ReportServer?/MyReports/Reports/TestReport&rc:Stylesheet=NonIEStylesheet

where NonIEStylesheet is the name of the css file we placed into

C:\Program Files\Microsoft SQL Server\MSRS11.[Instance Name]\Reporting Services\ReportServer\Styles.  

Also notice we didn't use the /Reports/ endpoint for SSRS.  We have to use the /ReportServer/ endpoint.

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