463723 - Pressing ctrl-tab quickly should not show Tab Preview

Status: VERIFIED DUPLICATE of bug 498272

(Firefox :: Tabbed Browser, defect)

Description

[Aaron P]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1b2pre) Gecko/20081105 Minefield/3.1b2pre
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1b2pre) Gecko/20081105 Minefield/3.1b2pre

I often use ctrl-tab to quickly switch between two tabs. When pressing ctrl-tab and quickly releasing, the browser switches to the other tab quickly. After doing the switch, the Tab Preview window flashes up for a very short time and then goes away. 

From what I can tell, Firefox has already focused the tab that I selected before displaying the Tab Preview window. This is annoying and unnecessary. 

I can think of two separate methods that might resolve this:

1. The Tab Preview window should check immediately before it actually shows itself to determine if the user has already selected the tab they want (by releasing the ctrl-tab keys).

2. The Tab Preview window should wait a certain amount of time (0.2? sec) before being displayed.

In both methods, if it is determined that the tab was already selected, then the Tab Preview window should not be shown.

Reproducible: Always

Steps to Reproduce:
1. Open browser with 2 tabs
2. Hit ctrl-tab and release keys as quickly as possible

Actual Results:  
Notice that the other tab gets selected and the Tab Preview window is displayed briefly (<0.1 sec), before being hidden again.

Expected Results:  
The Tab Preview window should not be displayed.

Comment 1

[Nickolay_Ponomarev]

This is the same as bug 498272, as far as I can tell, and fixed in the most recent version of the feature. If I misunderstood something, please feel free to reopen.