401031 - A tooltip appears while trying to reorder a tab, not allowing the tab to be reordered

Status: RESOLVED DUPLICATE of bug 312852

(Firefox :: Tabbed Browser, defect)

Description

[Michael Whitaker]

User-Agent:       Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.1.8) Gecko/20071008 Firefox/2.0.0.8
Build Identifier: Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.1.8) Gecko/20071008 Firefox/2.0.0.8

I can reorder a tab if I /very quickly/ click and hold a tab, drag, and drop it to a new position. If I'm any slower, then while holding down the mouse a white-blank tooltip box appears (sometimes) where the tab is. Sometimes it doesn't appear, but reordering is still broken. When this happens, the little green reorder arrow doesn't move, and dropping the tab causes the tab outline to return to its original position.

I haven't had the opportunity to check with the latest dev build, or on any other operating systems.

Reproducible: Always

Steps to Reproduce:
1.open 3 or more tabs with valid URLs (I haven't tried empty tabs)
2.click and hold on any tab. Hold for at least 1 second
3.try to drag and drop it to another tab position (using the green reorder arrow as your guid)
Actual Results:  
(described above)
Sometimes a blank tooltip box appears, changing the focus(maybe?), and breaks the reordering process. No tabs are moved.

Expected Results:  
Reordering should happen as expected, whether the tooltip box appears or not. If it is a focus problem, then the focus should remain on the component responsible of reordering the tabs. 

This only started happening with the latest build (2.0.0.8). I upgraded from the immediate previous build.