<p>Today, I ran into this weird problem with a user using Mac OS X. This user always had a failed upload. The form uses a regular "input type=file". The user could upload using any browser except Firefox 3 on his Mac. Only this particular user was seeing this error.</p>

<p>Obviously, the problem is only with this one particular user.</p>

[{'answer_id': 5089, 'author': 'Eddie', 'author_id': 576, 'author_profile': 'https://Stackoverflow.com/users/576', 'pm_score': 3, 'selected': True, 'text': '<p>User corrected this weird problem by recreating their FireFox profile.\n<a href="http://support.mozilla.com/en-US/kb/Managing+profiles" rel="nofollow noreferrer">How to manage FireFox profiles</a></p>\n\n<p>I imagine a re-install of FireFox would have corrected the problem as well.</p>\n'}, {'answer_id': 5097, 'author': 'Pat', 'author_id': 238, 'author_profile': 'https://Stackoverflow.com/users/238', 'pm_score': 0, 'selected': False, 'text': '<blockquote>\n  <p>I imagine a re-install of FireFox would have corrected the problem as well.</p>\n</blockquote>\n\n<p>Profile related problems cannot usually be solved by re-installing Firefox since reinstalling (or upgrading) would re-use the same "damaged" profile.</p>\n'}]
['https://Stackoverflow.com/questions/5084', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/576/']