Find expression problem in FireFox 3.6.3

[Marcin Dziedzic]

Hello, 

I'm getting some strange problem since I updated my FireFox from 3.5.5 to 3.6.3 last week. When I'm looking for element like this : 

<span xmlns="" class="label_url_addDiscount_constant">
<a href="/PA_Klient_Finanse_Rabaty_DodajRabat_Staly.html?clientID=456083">
<img border="0" src="/buttons/pierwszy/dodaj rabat stały.gif" alt="dodaj rabat stały"/>
</a>
</span>

using code similiar to 

Element el = find.ByExpression("alt=dodaj rabat stały");
actions.Click(el);

i got exception 

'2010-05-05 10:21:54.265 ' - [Trace] : Exception: ExecuteCommandException Message: ExecuteCommand failed!
InError set by the client. Client Error:
mozCommandProcessor: FindElement(): Tag collection is either empty or has less elements than the element occurrence requested.TagName: a4:img, Occurrence Requested: 0, All Tags Collection length: 0
BrowserCommand (Type:'Information',Info:'ElementRectangle',Action:'NotSet',Target:'ElementId (tagName: 'a4:img',occurrenceIndex: '0')',Data:'',ClientId:'Client_4a2adc76-44ce-4b9e-8e28-1c16bc02a364',HasFrames:'False',FramesInfo:'',TargetFrameIndex:'-1',InError:'True',Response:'mozCommandProcessor: FindElement(): Tag collection is either empty or has less elements than the element occurrence requested.TagName: a4:img, Occurrence Requested: 0, All Tags Collection length: 0')
InnerException: none.

This happend only in FireFox 3.6.3 in older FF version (3.5.5) everything is fine. 

[Missing User]

Hello Marcin,

Thanks for the post, I was able to reproduce this with your code

I tried to come up with a work around, but could not come up with anything.

I'll log a bug for this and we'll look to see what maybe going on.

Best wishes,
Nelson Sin
the Telerik team

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[Marcin Dziedzic]

Ok, thank you for your time.  

[Konstantin Petkov]

Hi Marcin,

Just came to this thread after working with WebUI Test Studio client on the same error. She was running the 2010 Q2 of the product and once she upgraded to the very latest (internal build) and got this resolved. Here is the download page from your account for the latest WebAii Testing Framework build download.

Kind regards,
Konstantin Petkov
the Telerik team