Closed Bug 1480686 Opened 6 years ago Closed 5 years ago

[windows] Tab previews are not displayed in the taskbar for more than 20 tabs

Categories

(Core :: Widget: Win32, defect)

All
Windows
defect
Not set
normal

Tracking

()

RESOLVED WONTFIX
Tracking Status
firefox61 --- affected
firefox62 --- affected
firefox63 --- affected

People

(Reporter: JuliaC, Unassigned)

Details

[Affected versions]:
- 63.0a1 (2018-07-30
- 62.0b13 build1 (20180730180407)
- 61.0.1 build1 (20180704003137)

[Affected platforms]:
- Windows 10x64
- Windows 7x64

[Steps to reproduce]:
1. Launch Firefox 
2. Go to about:preferences and make sure that the "Show tab previews in the Windows taskbar" option is enabled
3. Open 20 new tabs and inspect the taskbar preview
4. Open at least one more new tab and inspect the taskbar preview

[Expected result]:
- [step 3] [step 4] The tab previews are successfully displayed inside a doorhanger on the taskbar 

[Actual result]:
- [step 4] The tab previews are not displayed anymore

[Regression range]:
- This issue is not a recent regression, as it's reproducible all the way back to 50.0a1 (2016-07-30)

[Additional notes]:
- The expect behaviour is triggered if doing the same scenario, but for windows instead
Component: Tabbed Browser → Shell Integration
Component: Shell Integration → Widget: Win32
Product: Firefox → Core
Status: NEW → RESOLVED
Closed: 5 years ago
Resolution: --- → WONTFIX
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