no context menu for checkbox in a table cell in FireFox

[plauderer@…]

When using Firefox you don't get a context menu for a checkbox in a tablecell. f.e.

<code>
<table border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td valign="top"><input name="something"
type="checkbox" value="JA" /></td>
<td>Description for the checkbox. </td>
</tr>
</tbody>
</table>
</code>

When left-clicking on the checkbox, the table cell gets marked and no context menu shows up. Another leftclick on the checkbox followed by a right-click on some free space in the same table cell brings up the context menu correct with checkbox-properties. But not when clicking on the checkbox itself.

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Moved from SF:
​http://sourceforge.net/tracker/index.php?func=detail&aid=1333057&group_id=75348&atid=543653