Thank you very much again.

Such kind of bug descriptions and examples are much apreciated.

If we know the problem we solve it to 50%

Will see how to overcome this.

I can conform that the problem with existence of 

.ui-widget :active { outline: none; }

in the jQuery UI 1.8.X CSS really exist. You can see the demos http://www.ok-soft-gmbh.com/jq.....nbsp;which performance is OK in the Firefox and http://www.ok-soft-gmbh.com/jq.....nbsp;which has the original jQuery UI 1.8.6 CSS and which is very slow in Firefox.

Till now I can not found an elegant way to remove .ui-widget :active { outline: none; } without having a copy of jQuery UI 1.8.6 CSS.

Best regards
Oleg 

Here are some others having the same problem:

http://stackoverflow.com/quest.....8-jqueryui

There is also an example given, which demonstrates the behaviour. Works fine with IE6, but seems to be very slow FF>3.6 (not tested any lower version).

Thank you for investigation, but I can not confirm this.

A test case wiil be a good proof of this report.

Thanks again

Best Regards

Tony

jqGrid 3.7.2 is not fully compatible with jQuery UI 1.8.4:

Row selection slows down and the grid becomes unusable with FF and Chrome.

It is caused by the following line of jquery-ui.custom.css

.ui-widget :active { outline: none; }