600472 - taskbar previews show recently closed tabs

Status: NEW

(Firefox :: General, defect)

Description

[Ulrich Driessen]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.2.10) Gecko/20100914 Firefox/3.6.10
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.2.10) Gecko/20100914 Firefox/3.6.10

Using Firefox on Win7(64) for a while, the taskbar-con-prewiew shows sometimes much more previews than open tabs.
It looks like the preview-funktion is not refreshening properly

Reproducible: Always

Steps to Reproduce:
1.use Firefox with many changing tabs (websites)
2.close sites, open new ones
3.check taskbar preview against open tabs

Comment 2

[Rob Arnold [:robarnold]]

Are there any error messages or specific reliable steps to reproduce? I have seen this on occasion but have not managed to reliably reproduce it.

Comment 3

[Ulrich Driessen]

no error messages, just using latest version on a computer specified:
Firefox on Win7(64)
f.e. opening links from thunderbird-mailas
opening favorits
....

Comment 4

[Saint Wesonga]

I don't know how to reproduce this issue, but my browser is currently in this state where I'm seeing previews of closed tabs. However, now I *cannot* close any tabs by clicking on their X buttons, or using Ctrl+W, or even middle clicking on them in the preview pane. Creating new tabs with Ctrl+T works, but I can't close them either. These two issues may be related since the latter has only happened after the former (Firefox 4 Beta 6 from rev 633e895d5e84).

Comment 5

[Saint Wesonga]

Attachment: Console Errors

Here's what shows up on my error console when my browser is in this state.

Comment 6

[Rob Arnold [:robarnold]]

This looks a lot like bug 545077.