324251 - Mousemove events get lost over content area when left mouse button is hold (no select state, using XUL menus in chrome)

Status: NEW

(Core :: DOM: Events, defect, P5)

Description

[Frank Wein [:mcsmurf]]

Recently sometimes i saw the problem that i cannot select menu items in SeaMonkey anymore. This problem normally starts occouring randomly while using SeaMonkey. I clicked on any menu with the left mouse button, held the mouse button and then moved the cursor downwords. Below a certain point menu items would not switch into the selected state anymore, also releasing the mouse button there did not do anyhing. After a bit of testing it turned out that i can select menu items which are displayed over other chrome UI, but as soon as i want to select a menu item which is displayed over content (so normal website display area) this does not work anymore. I cannot reproduce this reliable, but i've seen this bug several times now. For example in the View menu i can select menu items up to "Text Zoom (100%)", but not below.
Suggestions how to provide more debug info are welcome.

Comment 1

[mmortal03]

Yep, I saw this last night on s branch build.  I don't know what the steps are to reproduce it, because it happens at random.  I'll concentrate on it the next time it occurs.  

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1a3) Gecko/20060610 BonEcho/2.0a3 ID:2006061009

Comment 2

[Firefox Bug Husbandry Bot]

https://bugzilla.mozilla.org/show_bug.cgi?id=1472046

Move all DOM bugs that haven’t been updated in more than 3 years and has no one currently assigned to P5.

If you have questions, please contact :mdaly.