Closed Bug 1411377 Opened 7 years ago Closed 7 years ago

Opening online PDF with PDF.js causes Firefox to spike in CPU and render the OS unusable

Categories

(Firefox :: PDF Viewer, defect)

Product:
Firefox
Component:
PDF Viewer
Version:
58 Branch
Type:
defect
Priority:
Not set
Severity:
normal

Tracking

()

Status:
RESOLVED DUPLICATE of bug 1410381

People

(Reporter: jallenby37, Unassigned)

Details

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:58.0) Gecko/20100101 Firefox/58.0
Build ID: 20171019100107

Steps to reproduce:

Firefox Version 58.0a1
Extensions: Ghostify, uBlock Origin, Firefox Test Pilot

Loading the link below triggers the bug.
http://pdf.th7.cn/down/files/1312/c_primer_5th_edition.pdf


Actual results:

Windows:
The page never navigates away from the page before loading the PDF and goes into a loading loop for a short amount of time before spiking in CPU usage, causing the operating system to be unusably slow and hard drive activity to increase dramatically. The only way to recover is by force shutting down.

Linux:
After testing in Windows, I booted into Linux with the same nightly version and the issue is similar to Windows. The operating system becomes unusably slow and hard drive activity increases significantly.
The only way to recover is by force shutting down.


Expected results:

The PDF should have loaded and displayed correctly without hanging the computer.
Status: UNCONFIRMED → NEW
Component: Untriaged → PDF Viewer
Ever confirmed: true
I suspect that it's the same issue as in bug #1410381, so I'm duping it there.
Reopen if it's not.
Status: NEW → RESOLVED
Closed: 7 years ago
QA Contact: Virtual
Resolution: --- → DUPLICATE
Could you please try to reproduce the issue on Firefox 56 (stable version) and on Firefox 57 (beta version)?
Flags: needinfo?(jallenby37)
No reply for week, so I'm clearing :ni.
Reopen this bug, if it still reproducible in latest Nightly.
Flags: needinfo?(jallenby37)
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