User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-GB; rv:1.9.2.8) Gecko/20100722 Firefox/3.6.8 ( .NET CLR 3.5.30729; .NET4.0E) Build Identifier: If you place a standard text area on an html page and then paste in a large amount of text (say 1500 lines) into it there is a significant delay following the paste action. This delay makes working with the text area in FireFox unworkable for anything but the very small amounts of text. Reproducible: Always Steps to Reproduce: 1.create a large text area on an HTML Page <textarea name="" cols="100" rows="60"></textarea> 2.Now paste in a reasonable amount of text. (I got my text for this test from an article on wikipedia). There is a delay following the paste. 3.Repeat this process a few times appending more text and FireFox hangs. Actual Results: Firefox slows down and then hangs. Expected Results: I would expect FireFox to at least perform as good as other mainstream browsers such as Safari, Chrome, IE. Handle large amounts of text in a text area quickly and efficiently with no sluggish delays.

What version of Firefox do you see this with?

Should retest once bug 240933 is fixed. The "hang" bit should already be fixed in that each paste will take the same amount of time on trunk.

This should be fixed by bug 240933. If you see further manifestations of this problem, please reopen.