firefox.exe executable grows to an unsual size over the day's use, reducing performance of the system.




10 years ago
8 years ago


(Reporter: brpayne, Unassigned)


Firefox Tracking Flags

(Not tracked)


(Whiteboard: [CLOSEME 2010-11-01])



10 years ago
User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv: Gecko/2008092417 Firefox/3.0.3
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv: Gecko/2008092417 Firefox/3.0.3

I have noted that toward the end of each day's use, my system performance begins to degrade, to the point that it becomes unbearable.  In opening the Windows Task Manager, I find that Firefox.exe has grown to 600 or 700 MB in size, and that a file (I believe from the CA Security Suite) known as "mdmcls32.exe" has likewise grown to 600 or 700 MB.  This condition did not exist when I was using the various versions of Firefox 2 in the same environment (including the CA Security Suite), and so I am reporting this bug. 

Reproducible: Always

Steps to Reproduce:
1.Turn on computer and begin using it each day. 
Actual Results:  
The same results occur, each and every day. Just turn on the system, open Firefox, use it and leave it running throughout the day, and the condition occurs. 

Expected Results:  
The same result occurs. 

Firefox.exe and mdmcls32.exe should remain more stable in size, and not drag down the performance of the computer.
This is a mass search for bugs which are in the Firefox General component, are
UNCO, have not been changed for 500 days and have an unspecified version. 

Reporter, can you please update to Firefox 3.6.10 or later, create a fresh profile,, and test again. If you still see the issue, please update this bug. If the issue is gone, please set the status to RESOLVED > WORKSFORME.
Whiteboard: [CLOSEME 2010-11-01]
No reply from reporter, INCOMPLETE. Please retest with Firefox 3.6.12 or later and a new profile ( If you continue to see this issue with the newest firefox and a new profile, then please comment on this bug.
Last Resolved: 8 years ago
Resolution: --- → INCOMPLETE
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