After previewing a tab through the Aero Peak preview from the taskbar, the active tab remains blank




Tabbed Browser
6 years ago
2 years ago


(Reporter: Alex, Unassigned)


21 Branch
Windows 7

Firefox Tracking Flags

(Not tracked)




6 years ago
User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:13.0) Gecko/20100101 Firefox/13.0
Build ID: 20120601045813

Steps to reproduce:

Related to ticket # 627895

Steps to reproduce:
- open multiple tabs and split them in different tab groups (all in one Firefox window)
- select a tab which has a page loaded (not blank)
- hover the windows taskbar button
- Aero Peak tab previous will show all the tabs opened although only some of the tabs belong to the  current tab group (this is ticket 627895)
- without actually clicking on any of the tab from the Aero Peak preview list, simply move the mouse over different tab previews and keep it still for a few seconds - Firefox will bring the corresponding tab to front. Repeat this for different tabs, and (IMPORTANT!) hover your mouse over a preview of a tab from another tab group.
For example, active tab group is called A, and there is another tab group called B. Each has 2 tabs. In the Aero Peak there will be all 4 tabs. Hover any tab from *hidden* tab group B. Firefox will bring that tab to front.
- Without clicking on any tab preview from Aero Peak, move the mouse away from the taskbar, leaving the same active tab in Firefox -> after the hidden tab was brought to front due to Aero Peak hovering, when the active tab is brought again to front its content is blank. You need to select another tab then come back in order to see the content again.

Actual results:

When hovering a tab preview corresponding to a hidden tab (from an inactive tab group) through the Windows 7 Aero Peak feature, Firefox will bring that hidden tab to front, even if it is part of an inactive (hidden) tab group. That tab will remain in Firefox tab bar until any other tab is selected.

After moving the mouse away from Aero Peak previews (without clicking on any of it) Firefox will return to the original active tab which was initially selected, but its content is shown as blank, no matter what page was loaded. You need to select another tab then come back to see the content again.

Expected results:

Either do not show the tab previous from hidden tab groups in the Aero Peak (bug 627895) OR correct the behaviour described above.

Comment 1

6 years ago
User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:13.0) Gecko/20100101 

	Advertising Cookie Opt-out 1.5 true
	Firebug 1.9.2 true
	gTranslate 0.9 true {aff87fa2-a58e-4edd-b852-0a20203c1e17}
	Romanian spelling dictionary 1.12 true
	Tile Tabs 6.2 true tiletabs@DW-dev
	WebMail Notifier 2.9.7 true {37fa1426-b82d-11db-8314-0800200c9a66}

Important Modified Preferences
	accessibility.blockautorefresh true
	accessibility.typeaheadfind true
	accessibility.typeaheadfind.flashBar 0
	browser.cache.disk.capacity 1048576
	browser.cache.disk.smart_size.first_run false
	browser.cache.disk.smart_size_cached_value 849920
	browser.display.background_color #C0C0C0
	browser.display.use_system_colors true
	browser.places.smartBookmarksVersion 3
	browser.startup.homepage about:blank
	browser.startup.homepage_override.buildID 20120601045813
	browser.startup.homepage_override.mstone 13.0
	browser.tabs.animate false
	extensions.lastAppVersion 13.0
	network.cookie.prefsMigrated true
	places.database.lastMaintenance 1339056321
	places.history.expiration.transient_current_max_pages 104858
	places.history.expiration.transient_optimal_database_size 167772160
	privacy.sanitize.migrateFx3Prefs true
	security.OCSP.disable_button.managecrl false
	security.disable_button.openCertManager false
	security.disable_button.openDeviceManager false
	security.warn_viewing_mixed false


6 years ago
Severity: normal → major
Component: Untriaged → Panorama

Comment 2

5 years ago
This happens also in v21. Tested on Windows 8, desktop mode.
Component: Panorama → Tabbed Browser
Version: 13 Branch → 21 Branch

Comment 3

2 years ago
Out of scope - no Panorama anymore. Closing this.
Last Resolved: 2 years ago
Resolution: --- → WONTFIX
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