Firefox browser and this forum

Submitted: Thursday, Jun 29, 2006 at 08:06
ThreadID: 35382 Views:2239 Replies:11 FollowUps:9
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I suspect this is a bug with Firefox rather than the code for this forum.

I'm currently running version 1.5.0.4 of Firefox (the latest) on a Windows 2000 platform and notice that when I open this forum in a Firefox window Firefox grabs, and keeps, about 70% of CPU resources which causes the whole machine to slow down somewhat. When I kill the windows with forum pages CPU usage returns to normal. I have not observed this issue on any other web pages. As a temporary fix I'm using IE for this forum - yuk :)

This may only be a W2000 issue or it may only be my machine for reasons best known to itself but it's probably worth you other Firefox users hitting "Ctrl-Alt-Del" and selecting "Task Manager" then "Performance" to see what your CPU usage is.

Mike Harding

mike_harding@fastmail.fm
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Reply By: Richard W (NSW) - Thursday, Jun 29, 2006 at 08:16

Thursday, Jun 29, 2006 at 08:16
Mike,

I'm running XP pro and Firefox and there is very little impact on performance.
AnswerID: 180980

Reply By: ro-dah-o (WA) - Thursday, Jun 29, 2006 at 08:20

Thursday, Jun 29, 2006 at 08:20
Thats interesting Mike, Im looking at my performance at the moment-7%, ohh hang on 8%.... I have found firefox to be brilliant, and like most that make the switch are happy (I could see this turning into another waeco Vs Engel thing LOL)

My CPU usage when using EO peaks around 27% when loading pages.

Hope you get it sorted
AnswerID: 180981

Follow Up By: ro-dah-o (WA) - Thursday, Jun 29, 2006 at 08:21

Thursday, Jun 29, 2006 at 08:21
hit 36% when I loaded my response- woohoo!
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Reply By: Member - MrBitchi (QLD) - Thursday, Jun 29, 2006 at 08:23

Thursday, Jun 29, 2006 at 08:23
Problem is a known bug with Firefox's memory handling. Affects some, not others. Mines fine though I'm running on XP which is better with FF than 2k.

One way to reduce the effect is to add a new config preference called "config.trim_on_minimize" with a value of "true"
This forces Firefox to release memory and cpu resources when closing a window or tab. Won't do much to reduce the usage for an open window but at least you'll get it bake when you close the tab.

A way test to check you copy of FF is to go to portableapps.com and download a copy of Portable FireFox. Run that (it doesn't need to be installed, just unzip the package and run the exe) and see how it performs.
AnswerID: 180982

Follow Up By: Mike Harding - Thursday, Jun 29, 2006 at 08:46

Thursday, Jun 29, 2006 at 08:46
Thanks for that John.

Portable FF behaves in a similar manner but only grabs about 35% of CPU resources when this forum is open. If I go "Back" and "Forward" between the forum and my home page (BOM text weather forecast) there is a noticeable change in CPU resources - 35% for the forum, 1% for the BOM.

btw this does not appear to be a memory issue - memory usage barely changes irrespective of which page FF is displaying - it's purely CPU usage.

Mike Harding
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Follow Up By: Member - MrBitchi (QLD) - Thursday, Jun 29, 2006 at 08:52

Thursday, Jun 29, 2006 at 08:52
Try it on an XP box if you have one available. Currently mine shows between 0-7% usage for FF with 8 tabs open.
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Follow Up By: Mike Harding - Thursday, Jun 29, 2006 at 09:19

Thursday, Jun 29, 2006 at 09:19
Interesting.

The XP box shows similar results when I switch between the BOM text page and the forum. However as the XP box is more than twice as fast as the W2000 (1GHz - 2.4GHz) the CPU usage on XP is around 20% to 30% on the forum dropping to 1% on the BOM page.

Just to clarify; CPU usage on the forum under IE is 1% or 2% so it is looking like a Firefox issue.

For the non techies: CPU usage will depend on which applications and background tasks your computer is running at any given time. If you want to measure forum usage use the "Back" and "Forward" buttons in the browser to toggle between the forum and a simple text only page such as:
Site Link

Once the page has fully loaded note the _difference_ between the average CPU usage on the text page and the average CPU usage on the forum and that is, approximately, the percentage of CPU resources the forum is using on your particular computer.

Mike Harding
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Follow Up By: Pterosaur - Thursday, Jun 29, 2006 at 11:05

Thursday, Jun 29, 2006 at 11:05
Mike,

What MrBitchi said

with the addition that if you minimise FF, it frees the resources (memory, cpu) which were hogging your machine.

BTW, I use 64 bit XP, and its a blast with Firefox (I have a deep seated hatred of IE) and am currently using 2 -10% of cpu, as I type this.

regards
Terry
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Follow Up By: phil - Friday, Jun 30, 2006 at 12:13

Friday, Jun 30, 2006 at 12:13
MrBitchi,
Where do you put the config preference that you described?
I am running FF 1.0.4 on Win 2000 also and the forum pages all use up 100% of CPU power. I do not think that it used to be the case because I habitually have various browser windows open in the background and have not noticed it before.

Phil I
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Follow Up By: Member - MrBitchi (QLD) - Friday, Jun 30, 2006 at 13:25

Friday, Jun 30, 2006 at 13:25
Phil,
Open a new tab and type "about:config" in the address bar. The config settings will appear. Right click in the page and select "new > String" and follow the prompts.

One other thing, go to the extensions tool and download the "FasterFox" extension and install it. See if that makes a difference.
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Follow Up By: phil - Friday, Jun 30, 2006 at 17:42

Friday, Jun 30, 2006 at 17:42
Hi Mr Bitchi

Put the string into config as you described and restarted FireFox. Unfortunately no change. The CPU use is low for about 2 seconds after the page has loaded and then jumps to 100%.

It does not matter if it is the main forum page or just a single post.

Nothing else on the web that I have tried does this.

Really wierd.

Phil I
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FollowupID: 437589

Reply By: Nick R - Thursday, Jun 29, 2006 at 09:00

Thursday, Jun 29, 2006 at 09:00
I am at about 43% overall with firefox using about 42% and the system idle process using about 56%
NickR
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AnswerID: 180994

Reply By: Member No 1- Thursday, Jun 29, 2006 at 10:10

Thursday, Jun 29, 2006 at 10:10
dont you lot know that this is not a topic that is allowed on this forum
hehehe
AnswerID: 181006

Reply By: sdr00y - Thursday, Jun 29, 2006 at 11:37

Thursday, Jun 29, 2006 at 11:37
Running firefox and windows 98se on a pentium III laptop and having no problems at all.

sd
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AnswerID: 181017

Reply By: Waynepd (NSW) - Thursday, Jun 29, 2006 at 14:04

Thursday, Jun 29, 2006 at 14:04
Running the same ver of firefox as you but on an old PIII 933Mhz with 512 RAM.
After stopping MSN messenger and a few other tray items i was able to go from 66% down to 22-25%.
AnswerID: 181029

Reply By: Mad Dog (Australia) - Thursday, Jun 29, 2006 at 14:32

Thursday, Jun 29, 2006 at 14:32
Firefox runs like a bloated old dog
Maxthon has all firefox features plus more and runs like a greyhound.
AnswerID: 181033

Reply By: GaryInOz (Vic) - Thursday, Jun 29, 2006 at 15:51

Thursday, Jun 29, 2006 at 15:51
Xp Home running firefox, latest build. CPU usage 1%.

From "Processes" tab: tskmgr.exe 1%,System Idle Process 99%

You might have a bit of on-board spyware. Check your Network Utilization too.

AnswerID: 181052

Reply By: disco1942 - Friday, Jun 30, 2006 at 13:53

Friday, Jun 30, 2006 at 13:53
The problem as I see it is not so much the CPU usage as the amount of RAM that is used.

With 6 tabs open together with OpenOffice, Thunderbird and PowerDesk I am using 50-550% CPU but only 20900K out of 261620K of physical memory. (an old machine with P2-800 and upgraded to 256M of RAM)

PeterD
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Reply By: phil - Sunday, Jul 02, 2006 at 16:46

Sunday, Jul 02, 2006 at 16:46
I asked David about this and he asked me to try
" target="EOF" class="lbg">www.exploroz.com/splash.asp?layout=5
and it fixes it!

layout=5 turns off the scrolling news in the box at the top left.

You can also launch the forum directly with
Site Link

Phil I
AnswerID: 181440

Follow Up By: disco1942 - Sunday, Jul 16, 2006 at 20:35

Sunday, Jul 16, 2006 at 20:35
I have been using Site Link to open the forum each time. However often when I post a reply I later notice the “Latest News” panel scrolling. What is happening?

PeterD
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