1483471 - high load/cpu usage

Status: RESOLVED INCOMPLETE

(Firefox :: Untriaged, defect)

Description

[shadow_7]

Attachment: firefox_high_load.png

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Firefox/60.0
Build ID: 20180621121604

Steps to reproduce:

I've open around 40tabs with different content, but no videos or somthing like that (youtube, twitch etc), every few minutes Firefox create a high load on my machine. Itry to create a Gecko-Report but it still loading since 30minutes. 
For me the easiest way to reproduce this is to login to my gmx.net (mail-provider) account, an d click through some folders and mails after some clicks the load goes up, it also happens on other sites, but here its the easiest one (it also happens in google handouts)
With other browsers and more tabs (araound 60) I've not that issue.

my enviroment:
Distributor ID: Debian                                                                                                                                                                                                                       
Description:    Debian GNU/Linux 9.5 (stretch)                                                                                                                                                                                               
Release:        9.5                                                                                                                                                                                                                          
Codename:       stretch
Firefox version: 60.1.0esr (64-Bit)
Hardware: Lenovo T460, i7, 16GB RAM, SSD


Actual results:

I got a high load, the browser doesn't response on any click or so, sometimes my system freeze for few minutes and I can't do anything. I've attached an screenshot, you can see what I mean


Expected results:

a smooth and load friendly browsing like other browsers do

Comment 1

[Andre Klapper]

Try the about:memory page and see the about:debugging page.

Comment 2

[u554753]

Hi shadow_7, Thanks for reporting the issue. As mentioned above by Andre, I would second looking at and letting us know the information requested in Comment 1, along with any information from about:support. That can help narrow down what might be causing that issue. 

Please feel free to reopen this issue when that requested information is provided.