Closed Bug 1679669 Opened 4 years ago Closed 1 year ago

Firefox hangs on long pages if a11y tools is activated

Categories

(Core :: Disability Access APIs, defect)

Desktop
Windows 10
defect

Tracking

()

RESOLVED WORKSFORME
Tracking Status
firefox85 --- affected

People

(Reporter: alice0775, Unassigned)

References

(Blocks 1 open bug)

Details

(Keywords: nightly-community, perf)

Attachments

(1 file)

Attached file about:support (deleted) —

Reproducible: if Windows Narrator or ATOK in-site JApanese IME is activated

Steps to reproduce:
Go to https://elixir.bootlin.com/linux/v5.8.11/source/kernel/sched/fair.c

Actual results:
Page loading would not finish.
Firefox hangs for long period.
Profile: https://share.firefox.dev/37f68wY

Expected results:
Page loading is within 2-3 sec if a11y tools are not activated.

Severity: -- → S2
Depends on: 1737192
Blocks: a11yperf

Is this improved for you in Firefox 113 release or 115 Nightly?

Flags: needinfo?(alice0775)

No longer reproduce the hang on Nightly115.0a1 as well as Firefox113.0 Windows10.

Status: NEW → RESOLVED
Closed: 1 year ago
Flags: needinfo?(alice0775)
Resolution: --- → WORKSFORME
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