Excessive memory usage with FireFox 3.6.8

Is it normal for the total memory footprint of FireFox.exe and Plugin-Container.exe to be 1.14GB (488MB and 651MB respectively)?
When first opening FireFox, it's footprint is approx 30MB, but inexorably creeps upward as I browse (typically YouTube/Hulu/4chan/GMail), consuming nearly 60% of total system memory before performance loss demands a browser restart.
Is there any workaround or update/patch or command-line argument that will cap memory usage? Will rolling back to an earlier version of FF solve the problem, or is it a problem with Flash? Any advice would be appreciated.

This is caused by the Flag Fox add-on, you can either disable or uninstall it.
# Open the add-ons manager - in the menus select Tools, then Add-ons
# In the add-ons manager go to the Extensions panel
# In the list of add-ons click on Flag Fox to select it, then either click on the Disable or Uninstall button
# Re-start Firefox to complete the process
Do you have Personas Plus 1.6 installed? If you do try disabling that one instead, it has been causing problems with add-ons.

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Norton reports high memory usage with firefox and it crashes often

Norton antivirus 2011 has pop up warnings reporting high memory usage from Firefox. I have been getting theem often and my computer is crashing often after those pop up warnings. Thanks

Safe mode did not help.
I have disabled ALL extensions and plug-ins, but the problem with "zig-zag" memory usage still remains (I've not tried to leave browser open for the night yet).
I think I'll do clean reinstall with completely new empty profile (without sync'ed information) to try this out. If this works, I'll start adding stuff (configuration, sync, features, etc) to see what causes the problem.

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After using Yahoo Mail for an hour or so my memory usage increases to a very high level.
Just now, after reading and deleting about 50 e-mails (newsletters etc.) I noticed Firefox 17 running slowly and checked the memory usage in Windows Task Manager (I am using XP) and it was 1.2 Gb. My older laptop only has 2 Gb of RAM. Yahoo Mail was the only thing open at the time.
I never notice this problem with Gmail which I mainly use. However I use Yahoo Mail for quite a few newsletters etc. that are less important and which I only check once a week or so.
I found the following bug report about 3 years old which almost exactly describes my problem.
https://bugzilla.mozilla.org/show_bug.cgi?id=506771
But this report involves a much earlier Firefox version, and at the end it seems to say that the problem was fixed. However it well describes my current issue with Firefox 17, especially the continual increase in memory while using the up/down arrow keys to scroll through Yahoo e-mails.
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See also:
*https://support.mozilla.org/kb/firefox-uses-too-much-memory-ram
Start Firefox in [[Safe Mode|Safe Mode]] to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).
*Do not click the Reset button on the Safe mode start window or otherwise make changes.
*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

Keep getting this msg: AVG HAS DETECTED A HIGH MEMORY USAGE BY FIREFOX--TOTAL MEMORY; 292 MB. I HAVE NO IDEA HOW TO CLEAR THIS

see question above and help me please... it's slowing down my computer.
JH

The figure may not necessarily be high depending what you are doing with firefox. Do you know how much RAM is installed on your computer ?
The report is apparently being generated by AVG software, you will need to consult the AVG manual or its faq/site/forum if you want to turn off such notifications.
Note if you go to ''about:memory'' in the firefox location bar it will generate a report that you may find useful. See also [[high memory usage]]

Computer slows or freezes and displays high memory usage message firefox + thunderbird

When surfing between websites, the computer screen slows or freezes. I hit the return key and the new page can take 2-3 minutes to come up. The screen shows a message that there is high memory use on firefox, and also thunderbird when loading new incoming emails. The internet files are on C so here is a defrag report from 6.7.2011. I hope this helps your diagnosis.
Volume (C:)
Volume size = 29.29 GB
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Free space = 21.57 GB
Percent free space = 73 %
Volume fragmentation
Total fragmentation = 13 %
File fragmentation = 27 %
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Average file size = 364 KB
Total fragmented files = 4
Total excess fragments = 21,222
Average fragments per file = 1.67
Pagefile fragmentation
Pagefile size = 395 MB
Total fragments = 2
Folder fragmentation
Total folders = 3,093
Fragmented folders = 1
Excess folder fragments = 0
Master File Table (MFT) fragmentation
Total MFT size = 48 MB
MFT record count = 35,026
Percent MFT in use = 71 %
Total MFT fragments = 3
Fragments File Size Files that cannot be defragmented
7,684 804 MB \Documents and Settings\cameron\Application Data\Thunderbird\Profiles\duo7ne8y.default\Mail\mailbox.aon.at\Inbox
13,535 958 MB \Documents and Settings\cameron\Application Data\Thunderbird\Profiles\duo7ne8y.default\Mail\mailbox.aon.at\Trash

@ kmrupam: 3.40Ghz
@ cor-el disabling hardware acceleration didn't help unfortunately.
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SQL Developer is java based and relies on the jvm's memory management.
I'm not aware of any memory leaks as such, but memory tends not to be returned to the system.
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I keep getting a message saying Performance alert high memory usage by firefox what can I do about this. Patricia

I have gone into the History and deleted all the pages would this help reduce the memory usage.

Do a malware check with some malware scan programs. 
You need to scan with all programs because each program detects different malware. 
Make sure that you update each program to get the latest version of the database before doing a scan. 
* http://www.malwarebytes.org/mbam.php - Malwarebytes' Anti-Malware
* http://www.superantispyware.com/ - SuperAntispyware
* http://www.microsoft.com/windows/products/winfamily/defender/default.mspx - Windows Defender: Home Page
* http://www.safer-networking.org/en/index.html - Spybot Search & Destroy
* http://www.lavasoft.com/products/ad_aware_free.php - Ad-Aware Free
See also "Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked and [[Searches are redirected to another site]]

WinXP and Vista memory usage with Illustrator CS2 - is Vista winning?

Dear forum.
I have an AI-template file where I insert some very large PNG files into it, modifies the template a bit and then I print the the resulting document in PS-format. The PNG files may be as large as 100 MB (24-bits, approx. 100 mil. pixels in total). It appears that while a Vista-based machine has no problem loading one or even two copies of these huge files into memory, a WinXP-based machine can't even load a single file into memory. Instead, I a dialog box with the message: "Could not read the file because the plug-in could not understand this file". Is it really a faulty plug-in or is it just CS2's way of saying "not enough memory" in a quirky way?
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Pentium 4 2.6 GHz
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Dell OptiPlex 740SF
AMD x2 5000 (2.6 GHHz)
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Thanks!

Hi, everyone
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And you are using the task manager to determine how "much" memory is being used correct?
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Memory consuming with Firefox 29.0.1

Specs
Pentium D 3.4 Ghz,
DDR2 2 GB,
250 GB SATA with two partitions (windows and all applications partition: 18 GB free of 42 GB, other partition: 13 GB free of 190 GB)
Windows 8.1 Ent 64 bit,
Firefox 29.0.1 with plugins http://i.imgur.com/0tFbX0Q.jpg and extensions http://i.imgur.com/hQ3H7d0.jpg
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There have been memory issues reported with the Adblock Plus extension
Start Firefox in [[Safe Mode|Safe Mode]] to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.
*Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
*Do NOT click the Reset button on the Safe Mode start window
*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

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http://www.adobeforums.com/cgi-bin/webx?14@@.3bc45977/5
some benchmarks:
http://www.barefeats.com/octopro1.html
http://www.barefeats.com/octopro4.html

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Excessive memory usage with FireFox 3.6.8

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