784225 - Error: "Cannot modify properties of a WrappedNative" appear inthe Error Console when you highlight an entry in a textbox's autocomplete dropdown list and then do something to move the focus from the list.

Status: RESOLVED DUPLICATE of bug 428602

(Firefox :: Untriaged, defect)

Description

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User Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.24) Gecko/20111103 Firefox/3.6.24
Build ID: 20111103063747

Steps to reproduce:

I know this is a duplicate but the bug still exists.

I've taken the time to make up a page which fully documents the problem and gives you the steps to recreate it with a textbox on the page but here is short description:

- pulled up the autocomplete dropdown for a text box.

- I pulled up a textbox's autocomplerte dropdown list and moved the curosr onto an entry to highlight it.

- I moved cursor off highlighted item, without clicking on it.

- I then clicked somewhere else on page - it could anything: blank space, text, a button, or even a link. The  link is followed by the error does occur.




Actual results:

Nothing visible happens on the FF window, but if you look at the Error Console this message has been added (for FF 3.6.12, the message a tad different with 14.0.1):

Error: uncaught exception: [Exception... "Cannot modify properties of a WrappedNative"  nsresult: "0x80570034 (NS_ERROR_XPC_CANT_MODIFY_PROP_ON_WN)"  location: "JS frame :: chrome://global/content/bindings/autocomplete.xml :: onxblpopuphiding :: line 825"  data: no]

I can consistency reproduce the error and I have reproduced it using textboxes on other pages all over the Web.


Expected results:

The autocomplete dropdown list should simply "go away.'

I know this is a duplicate bug report but has not been fixed and many of the reports are quite old.

I have tried FF 3.6.12 and 14.0.1 and the error occurs with both of them.

I have created a page page describing the problem in detail and providing a textbox you can use to reproduce the error is at:

http://www.bobnovell.com/strangeFFerror.html 

I've reproduced this error in textboxes on sites all over the Web. I can reproduce the error using one your search boxes, such as the one on this reporting page. I didn't try any other fields on any of your pages, just search boxes.