User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; FunWebProducts-MyWay; DVD Owner; .NET CLR 1.1.4322) Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6) Gecko/20040206 Firefox/0.8 No text input fields in firefox have a number-of-character limit, So the user may enter an infinetly huge string. This leads to unexpected behavior such as the text going invisible at first and then later firefox crashes when the system runs out of memory due to firefox constantly requiring memory to store the huge-string. Reproducible: Always Steps to Reproduce: 1. Copy 5000 chars in the clipboard through Notepad or some text editor 2. Start Firefox 3. Keep inserting text from the clipboard into the address-bar till you have 45,000 characters (so, with 5000 chars in the clipboard, you need 9 pastes) 4. At this point the text becomes invisible 5. Continue pasting text into the addressbar (you may want to increase the size of the data in the clipboard to 100,000) till your machine runs out of memory and firefox crashes. Actual Results: By step4, the text in the input field became invisible. On step5, when my test machine ran out of memory (256MB machine) firefox crashed. Expected Results: Firefox should limit the number of characters that a user can enter into a field. This would avoid unexpected behavior such as invisible text and application crashes. This behavior could be potentially harmful to the users in the following possible cases: 1. The user imports bookmarks into firebird with huge strings; firebird tries to parse those strings and display them in the textbox. This would cause firefix to crash and the user would loose his\her data opened up in any webpages. 2. The user visits a (rouge) website which changes the text in the address- bar to a huge-string, this may also cause a crash and lead to data loss.

*** This bug has been marked as a duplicate of 203964 ***