User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0 Often, as a result of unintended formatting changes in a document, a URL is emailed or otherwise sent to me that is broken into two lines separated by a carriage return. When the URL is copied and pasted into FireFox, only the portion before the carriage return seems to make it into the box. This forces me to manually reassemble the URL before pasting it into the browser, which is a pain. If CR/LF is illegal in the URL, could not the entire string be accepted, and the offending characters parsed out? Reproducible: Always Steps to Reproduce: 1. take a URL 2. paste it into notepad 3. insert a CR, breaking the URL into 2 lines 4. select all the text and paste it into the URL box in Firefox Actual Results: (see details) Expected Results: (see details)

See bug 23485 for the unending discussion of why it's the way it is on various platforms, and bug 50935 comment 5 for the hidden pref workaround so that you can paste multiline URLs (and multiline anything in any singleline text field) in Windows. *** This bug has been marked as a duplicate of 23485 ***