Comment 124 for bug 187313

To give a bit more of information about the bug:
It seems that it meay be somewhat related to the cursor's position capture method. For if cursor stands still over the link during 2 or 3 seconds and the the right mouse button is pressed without [X, Y] movement, the correct pop-up menu is shown (at least most of the times). So it seems that when the click event is raised, the current, actual position of the cursor is not correctly captured. Instead, some other [X, Y] coordinates are passed as argument, that maybe quite far from the place qhere the arrow icon is on screen. for instance, sometimes I get mi del.icio.us plugin summoned, even when it is located on the top bar of the mozilla firefox 3 browser window, hundreds of pixels away from the link I am clicking. So I don't think the [X, Y] argument is really related to where the position of the cursor was some fraction of a second ago, but instead, the the algorithm that computes and hands over the coordinates is wrong.
This bug may be related to strange frozings of the browser that occur when trying to save an image file to the harddisk, documented as well in Launchapd.
Hope this helps.