Double click on filter symbol of Projects gadget causes the menu to not open anymore

Hi,

Several of my customers have noticed the following in FF 3.6.24/Win7

1. Go to dashboard view with all projects gadget
2. Click on filter icon to display context menu.
3. Menu is displayed for the 1st time
4. Click outside to hide menu
5. Click again on filter icon, menu not displayed
   or

1. Go to dashboard view with all projects gadget
2. Double Click on filter icon to display context menu.
3. Menu is not displayed anymore
   need to refresh page
4. The problem does not occur with IE 8 or Chrome

Any hints what we can do? The problem again is: FF 3.6.24 is standard browser and we somehow need to get it work with that browser.

The problem is reproducible on a vanilla install of Jira.

Best regards,
Ruchi