Open Bug 1698109 Opened 1 year ago Updated 1 year ago

Hiding Top sites is slow for the last 10%

Categories

(Firefox :: Top Sites, defect)

Desktop
All
defect

Tracking

()

Tracking Status
firefox-esr78 --- unaffected
firefox86 --- wontfix
firefox87 --- wontfix
firefox88 --- unaffected

People

(Reporter: dcicas, Unassigned)

References

(Regression)

Details

(Keywords: regression)

Attachments

(1 file)

Attached image top sites.gif

Note
This issue only occurs when Firefox is in the default window mode(Not fullscreen)
This issue is not proton related put is still visible with proton active.

Affected versions

  • Fx 86.0.1
    Fx 87.0b9

Affected platforms
*Windows 10
Ubuntu 18.04

Steps to reproduce

  1. Start Firefox.
    (Optional) Switch Firefox to dark theme.
  2. Open a new tab with about:newtab.
  3. Click on the arrow next to top sites to hide the section.

Expected result

*The transition to hidden for top sites is smooth.

Actual result

  • The transition is not smooth because of slowing down on the last 10%.

Suggested Severity

  • S3

Regression range

Additional notes
This issue is not proton related put is still visible with proton active.
This issue only occurs when Firefox is in the default window mode(Not fullscreen)
This issue is fixed in the currently Nightly (03.12.2021)

Has Regression Range: --- → yes
Has STR: --- → yes

If this is working in Nightly, can we please try to bisect the fix?

Flags: needinfo?(daniel.cicas)
Regressed by: 1649292
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