Memory leak on OSX Sierra

UNCONFIRMED
Unassigned

Status

()

Core
General
UNCONFIRMED
28 days ago
20 days ago

People

(Reporter: Jessica, Unassigned)

Tracking

56 Branch
Points:
---

Firefox Tracking Flags

(Not tracked)

Details

Attachments

(1 attachment)

(Reporter)

Description

28 days ago
User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:56.0) Gecko/20100101 Firefox/56.0
Build ID: 20171024165158

Steps to reproduce:

Opened Firefox (latest version as of October 27, 2017)
Restored previous session tabs
normal use of the web (browsing, checking email, angellist, etc)


Actual results:

Pointer changes to a pinwheel often when trying to switch between tabs, typing in form fields, and other activity in the browser. I checked my computer's activity monitor and Firefox is running at over 95% CPU and over 1GB memory. It was way worse than Skype. The situation is dire - I have to restart firefox to stop the memory drain.


Expected results:

Firefox should take more than 10% of CPU. I shouldn't be seeing the pinwheel and computer freezing with normal FireFox usage. I have a 2.9GHz quadcore i7 with 16gb memory in my 2017 macbook pro.

Updated

28 days ago
Component: Untriaged → General
Product: Firefox → Core
(Reporter)

Comment 1

26 days ago
Created attachment 8923190 [details]
Screen Shot 2017-10-29 at 12.14.59.png

Activity Monitor on my OS X Sierra 2017 macbook pro showing FF taking 99% system memory. Also using over 2GB CPU
(Reporter)

Comment 2

26 days ago
(In reply to Jessica from comment #0)
> User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:56.0)
> Gecko/20100101 Firefox/56.0
> Build ID: 20171024165158
> 
> Steps to reproduce:
> 
> Opened Firefox (latest version as of October 27, 2017)
> Restored previous session tabs
> normal use of the web (browsing, checking email, angellist, etc)
> 
> 
> Actual results:
> 
> Pointer changes to a pinwheel often when trying to switch between tabs,
> typing in form fields, and other activity in the browser. I checked my
> computer's activity monitor and Firefox is running at over 95% CPU and over
> 1GB memory. It was way worse than Skype. The situation is dire - I have to
> restart firefox to stop the memory drain.
> 
> 
> Expected results:
> 
> Firefox should take more than 10% of CPU. I shouldn't be seeing the pinwheel
> and computer freezing with normal FireFox usage. I have a 2.9GHz quadcore i7
> with 16gb memory in my 2017 macbook pro.

Meant to say "shouldn't take more than 10% CPU" not should***
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