User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.8.0.3)
Gecko/20060426 Firefox/1.5.0.3
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.8.0.3)
Gecko/20060426 Firefox/1.5.0.3

I'm using the Blogging software WordPress. Sometimes when I edit a post,
Firefox doesn't show the complete content of the predefined value in the
textarea. If I don't see that and submit the form, the "hidden" content is
lost.

This happens from time to time on larger posts. It's not a fault of WordPress
because the full post is set as the textarea value (I've looked at the source
when it happened the last time).

The position where firefox stops to display the content seems to be random. In
the attached data, it's line 117, character 80, which is not a special
character but in a normal word.

Reproducible: Sometimes

Steps to Reproduce:
1. Install blogging software wordpress (wordpress.org) or create a page with a
textarea
2. Create a post or set the textarea content to the attached content.txt
3. Reload the page several times until Firefox truncates the content of the
textarea.

Actual Results:  
Firefox stopped displaying the textarea content at line 117, character 80
(attached data)

Expected Results:  
Firefox should display all content

Set to critial because I lose the half of my post data when I submit the
trunctated content. I thinks it's happening since I've upgraded to Firefox
1.5.0.3.

Created an attachment (id=222620) [details]
Test value for the textarea

I've noticed this happening too with WordPress, usually when there is a very
large amount of stuff in the textarea -- either a long post, or a PHP file I'm
editing.

There is a chance that this is a WordPress issue, it could possibly be the
javascript in the admin area. I must say that I don't recall anything similar
happening with a different web application.

I have noticed this bug also. I am using Firefox 1.5.0.4 on WinXP SP2.

Here are my steps to reproduce this problem:
1) open firefox and type http://cnn.com into the address bar.
2) hit ctrl-t to get a new tab
3) type http://support.cogix.com:81/trunc.html into the address bar on the
second tab. after the page loads, scroll to the bottom of the textarea and note
that the last line reads "THE END"
4) hit ctrl-tab to cycle to the cnn.com tab.
5) hit ctrl-tab again to cycle back to the page loaded in step #3 above. Scroll
to the bottom of the textarea and note that the displayed text is truncated
prior to "THE END" that was observed in step #3.

I can confirm this beaviour with the steps noted in comment #3. This bug is NOT
WordPress related, it's a Firefox fault.

(In reply to comment #4)
> I can confirm this beaviour with the steps noted in comment #3. This bug is NOT
> WordPress related, it's a Firefox fault.
> 

Yes, I tried the example with CNN as well, and the same thing happened. It
seems to be switching between tabs that triggers this.

Created an attachment (id=229825) [details]
Simple replication of bug (switching tabs is essential)

I have narrowed this bug down to changing tabs with a large amount of text in a
textarea element - see new attachment called "Simple replication"

The textarea on the above page will truncate it's content (as most easily
witnessed by the length of the horizontal bar lengthening) when switching to
another tab and back.
I am using Firefox 1.5.0.4 on WinXP SP2.

Verry annonying. Happens on tab switch for any textarea that contains more then
600 lines... on..

Gecko/20060728 Firefox/1.5.0.6

I can confirm this. This is a really critical bug. We have a newsletter tool
and our newsletters were sent truncated to our customers. At the moment we
can't use firefox for this.

I can reproduce this problem only on one machine (the marketing guy who sends
the newsletter) in our company. So, maybe this bug is caused by some buggy
addon?
I asked him and one of our customers who had the same problem on firefox for a
list of their addons. Maybe this helps a little to localize the bug:

1)
=====
Google Toolbar for Firefox 2.1.20060807W
RankQuest SEO Toolbar 1.0
Google Pagerank Status 0.9.6
SEOpen 0.7

2)
=====
DOM Inspector 1.8.0.6
Google Toolbar for Firefox 2.1.20060807W
Html Validator 0.7.9
View formatted source 0.9.4.6
View Rendered Source Chart 1.5.02
Web Developer 1.0.2
IE Tab 1.0.8

If you have the same problem, do you have the same addons? Especially this
addon "Google Toolbar for Firefox 2.1.20060807W"? Does the error still appear
if you turn it off?

Reporter, do you still see this problem with the latest Firefox 2? If not, can
you please close this bug as WORKSFORME. Thanks!

In Firefox 2 it seems to work again... We don't have the problem anymore.

-> WORKSFORME