Severe Memory Leak at Certain URLs




3 years ago
3 years ago


(Reporter: k1devnull, Unassigned, NeedInfo)


38 Branch

Firefox Tracking Flags

(Not tracked)


(Whiteboard: [MemShrink])



3 years ago
User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Firefox/38.0
Build ID: 20150513174244

Steps to reproduce:

Go to either of these URLs:

Monitor memory with about:memory or Windows Task Manager

Actual results:

Memory grows constantly -- even after gc, cc, and minimize memory.  Eventually,
Windows warn to close firefox because system is running out of memory.

Google Chrome does not have problem with the same URLs.

Expected results:

Memory use should be constant like with Google Chrome.

Comment 1

3 years ago
Unable to replicate it for:

UserAgent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Firefox/38.0
BuildId: 20150513174244
Version: 38.0.1

UserAgent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:41.0) Gecko/20100101 Firefox/41.0
BuildID: 20150527030204
Version: 41.0a1
Flags: needinfo?(k1devnull)
Component: Untriaged → DOM
Product: Firefox → Core
Does this happen in safe mode?  In a clean profile?
Whiteboard: [MemShrink]

Comment 3

3 years ago
Using (virgin) guest profile, I do not see the severe memory growth at  Memory does still grow (and shrinks a little) according to Windows Task Manager.  So memory behavior is more tolerable.

But, when I selected Show All Bookmarks, more severe memory growth started.

So this appears to be caused by the bookmarks.
Flags: needinfo?(k1devnull)

Comment 4

3 years ago
So you can reproduce ShowAllBookmarks causing some leak?
Doesn't about:memory hint where the memory is consumed?
Yes, a saved report from about:memory would be useful here.
Flags: needinfo?(k1devnull)

Comment 6

3 years ago
Let's close this for now, k1devnull if you're concerned about this still happening please feel free to reopen.
Last Resolved: 3 years ago
Resolution: --- → INCOMPLETE
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