Created attachment 603132 [details] screenshot User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:10.0.2) Gecko/20100101 Firefox/10.0.2 Build ID: 20120215223356 Steps to reproduce: cmd + , open the preferences dialog; choose the advance tab,click network and setting Actual results: when i close the dialog , instead of the dialog was closed,there leaved a square block at the left top corner of firefox main window。
Status: UNCONFIRMED → RESOLVED
Last Resolved: 7 years ago
Resolution: --- → DUPLICATE
Duplicate of bug: 641288
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