1653513 - Firefox New Versions are Memory Thirsty

Status: RESOLVED INCOMPLETE

(Core :: General, defect)

Description

[hackrefisher]

Attachment: Capture.PNG

User Agent: Mozilla/5.0 (Windows NT 6.1; rv:72.0) Gecko/20100101 Firefox/72.0

Steps to reproduce:

I am was using firefox as my default broswer,
I use facebook,gmail,github,linkedin,stackoverflow,medium,etc.

Actual results:

It keeps on increasing memory usage even tabs only 3,
It will increase on tabs increase, But when tabs decrease memory don't increase,
May be tabs are not disposed.
It uses a lot of threads and hangs my pc,
I confirm it using task manager and other tools.

Expected results:

I tried version 18.0.2, It works fine as expected except it can't load pdf and some sites, like stackoverflow.com,

But all version upper than 18.0.2 has memory problems,
At 3--4 tabs it takes 300 MB memory,
At 4--6 tabs it takes 900 MB memory,
But when tabs are reduced from 6 to 3 even it remain same as 900MB,
These tests are confirmed and taken a lot of times in different os versions of windows,
including windows 7_x86 + 10_x86 + 10_x64.
Please include a lite version so that I may keep going with it,
I am currently using slim broswer because it is little bit fine more than firefox.
But even it has some same issues,
As it is based on firefox.

Comment 1

[Clara Guerrero ( Need Info Brindusa Tot Please)]

Hi,

It would help us if you can provide a memory report from about:memory, here are the steps for you to get it:

Wait until Firefox is consuming a large amount of memory
In the URL bar type about:memory and press enter
Click ""Measure and save"" (optionally with ""anonymize"" checked to hide URLs, although this will likely make it more difficult for us to figure out which site, if any, is causing the leak)
Save the memory report somewhere
Attach the report to this bug
Also it would help us a lot if you could reproduce this issue on our latest Nightly build, it can be downloaded from here: https://nightly.mozilla.org/
Then capture a performance profile using the Cleopatra add-on. You can get more info on how to install and use the Cleopatra add-on (that helps you get the performance profile) by going to:

https://developer.mozilla.org/en-US/docs/Mozilla/Performance/Profiling_with_the_Built-in_Profiler
https://perf-html.io/
Please also note that this add-on works only on FF Nightly, so that means you need to be able to reproduce the issue on Nightly first.

Thanks for the report.
Best regards,
Clara.

Comment 2

[Clara Guerrero ( Need Info Brindusa Tot Please)]

Hi,

I'm marking this as Resolved-Incomplete due to lack of response. If the issue is still reproducible with the latest Firefox version, feel free to reopen the bug with more information.

Regards, Clara.