Thursday, June 28, 2007

FireFox XX Bug

Have you noticed list boxes across the Internet displaying "XX" items in FireFox? If so, you're browsing with FireFox's latest browser release (, which introduced that annoying little bug a few weeks ago. The bug, which has been confirmed by the FireFox team, adds a "XX" dummy item to empty list boxes on a page if they are modified by JavaScript. The root cause of this bug appears to be the solution that was implemented for another bug, but thankfully the FireFox team has already created a patch that fixes the problem. The next security update release for FireFox will contain this fix and remove the annoying little Xs from the web.

So, if you have any applications with listboxes (like most of us do) and you start to get reports from your users about these weird "XX" items, feel free to pass the blame on to the FireFox team. For an immediate solution, the patch that should ship with the next security release is available for download.


Anonymous said...

Thank you so much for posting about this. I had just spent the last 2-3 hours trying to figure out why this was happening. If only I had of found your post earlier. :-D