1612705 - Memory use continuously increases when repeatedly reloading www.facebook.com

Status: RESOLVED DUPLICATE of bug 1610228

(Core :: JavaScript: GC, defect, P3)

Description

[Vit Kovalcik]

Attachment: Memory report after the described steps is attached (after GC, CC and Minimizing memory usage).

User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.130 Safari/537.36

Steps to reproduce:

(Firefox routinely consumes many GB of memory with only a few tabs open. This is only one way to show the issue, Facebook is the most prominent for me.)

Download and install fresh FF - 72.0.2 currently, no extensions.

1. Open www.facebook.com , no need to login, just front page.
2. Open new tab with "about:memory" - for me it currently shows 118 MB for that tab.
3. Switch to Facebook, pres F5 a three times.
4. After refresh, about:memory shows 213 MB for this tab.
5. Pressed GC + CC + Minimize memory.
6. about:memory still shows 166 MB.

Actual results:

The memory is climbing and will get into Gigabytes after a while. My personal best is about 5 GB for a single Facebook tab after a few days of use. Tested on my two Windows devices.

Expected results:

The memory should stay low.

Comment 1

[Worcester12345]

memory-leak key word?

Comment 2

[Jon Coppeard (:jonco)]

This is similar to bug 1608501, and I can reproduce it locally by the same means.