[Bug 263436] www/firefox uses excessive amount of memory

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 22 Apr 2022 23:42:23 UTC

--- Comment #2 from Josef 'Jeff' Sipek <jeffpc@josefsipek.net> ---
> Packages from latest or quarterly? 


    url             : "pkg+http://pkg.FreeBSD.org/FreeBSD:13:amd64/latest",

> Which version of FreeBSD, exactly?

$ freebsd-version -kru ; uname -aKU
FreeBSD satis 13.0-RELEASE-p11 FreeBSD 13.0-RELEASE-p11 #0: Tue Apr  5 18:54:35
UTC 2022    
amd64 1300139 1300139

> Is there discussion anywhere else?

None that I'm aware of.

> (In reply to Josef 'Jeff' Sipek from comment #0)
> > … reproduced it without any extensions enabled. …
> With Firefox in safe mode, or by disabling the extensions in normal mode? 

Disabling in normal mode.

> > … virtual size of one of the processes seems to climb to as high as 25GB …
> Aim to identify the site, or page, with which this occurs. 

Pretty much every page make the virtual size spike up.  Not necessarily to
25GB, but it is relatively common.  Just now, the "main" process has 13GB virt
/ 1.1GB rss.  I opened a new tab, and the virtual size jumped to 19GB.  Closing
the tab and opening a new tab again, didn't do it.  Waiting 20 minutes and
opening a new tab did it again.

> about:memory

I have no idea how to read this or what to look for.

FWIW, it says:

 WARNING: the 'heap-allocated' memory reporter does not work for this platform
and/or configuration. This means that 'heap-unclassified' is not shown and the
'explicit' tree shows less memory than it should.

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