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High CPU & Memory issues - Excessive and unnecessary CPU usage in Firefox for Windows (see also questions1003966 & 998289)

I am using the latest version of Firefox, 32.0.1, on an HP Pavilion dv7-4141sa laptop computer, running Windows 8.1 Pro 64-bit. There should be more than enough power he… (funda kabanzi)

I am using the latest version of Firefox, 32.0.1, on an HP Pavilion dv7-4141sa laptop computer, running Windows 8.1 Pro 64-bit. There should be more than enough power here to run a browser without any problem, yet the computer is regularly being overloaded by the browser's resource usage.

I am currently measuring typical average CPU usage of 45% - with the browser minimised. That is to say, Firefox is not doing any browser jobs - it is not drawing on the screen - but it is using the most CPU of any process currently running. Why?

I am an ex-software engineer, and my understanding of current application development technology is limited, but I think I can say with some confidence that many techniques and software architectures exist that enable the suspension of program activity, or at least its reduction to a very low bare minimum, when the program is not actually carrying out its design function, which is in this case to draw pictures of website data on a screen.

There is a very serious problem here, one which means that I cannot run Firefox all the time, but have to kill it when I am not actively browsing, otherwise other applications cannot run to their full capacity. This is a great pity, because I have committed a lot of effort to making Firefox my primary web tool. It manages all my many bookmarks, contains my secure password manager (LastPass), manages my web security (via NoScript, AdBlock, and FlashBlock), just for a start.

Before any well-meaning moderators or other commenters start down the usual trail of "have you done this, tried that, disabled the other", I should point out that I have followed all the advice I can find, with no positive outcome. This computer is running a fresh installation of Windows, and a fresh installation of Firefox. At the moment I am running a new test Firefox profile.

The latest version of Adobe Flash, 14.0.0.179, is installed but disabled. When it is enabled and in use, Firefox's CPU usage seems high over longer periods, but overall there is little difference. It doesn't look as though the problem can be laid at Flash's door. A few other add-ins are installed, mainly those mentioned above, and Firefox is skinned with LavaFox v2-Green, but I have previously started from a clean installation, which has made little difference after an initial period during which things seemed to be better. Turning off or disabling various add-ons has made no discernible difference.

Just now I turned Flash on, and after a long period with Firefox minimised, Resource Monitor reported Firefox at 8% average CPU and FlashPlayerPlugin at 0.32%. While running a small video, RM reports FlashPlayerPlugin at about 45% and Firefox at 8%. After the video, Flash went back down to around 0.4%, and after a bit more browsing Firefox went to around 17% minimised. There seems little rhyme or reason here, except that Flash does not seem to be the culprit, although Firefox does seem to consume less when fewer tabs are actually active, as you might expect. I just refreshed more than a dozen tabs, and now Firefox is at 30%, but still not back up to the higher figures. Weird.

The CPU usage does vary a lot around the average, but 30% is still a lot for a program that shouldn't be doing anything above the minimum status maintenance, and still puts it at the top of my Top Process Monitor list. (Right now it's gone back up to 45%, without my using it in any way).

I have Telemetry turned on, so presumably Mozilla is recording some of the relevant data.

This is a very serious fault, which is more or less reproducible and which a lot of people seem to be experiencing. Probably more people have it than realise, because most users will not know anything other than that their computer slows down for some non-obvious reason; they may just think it's something to do with the computer itself, not knowing how to use the Resource Monitor and interpret the results.

Oddly, the problem does not seem to occur when running Firefox under Linux Mint 17, where the response is snappy and the CPU usage ostensibly low; I am going to look at this in more detail shortly.

I am not posting here for advice, but for information and as a form of bug report which hopefully other users will see. It will hopefully spare them a lot of effort and time in trying a lot of recommended "solutions" which will not work. The problem is inherent in the software, and can be solved only by Mozilla.

I am willing to supply any diagnostic data requested; as I said above, I have also turned on "Telemetry". However, I will not be trying out any more reinstallation/new-profile/add-on disable-enable-delete cycles unless I am asked to for very specific reasons. Please do not suggest courses of action which have already been mentioned elsewhere on this forum. I have tried them all.

The situation is very disappointing, but I have confidence that the Firefox developers will pin down the fault eventually and engineer a satisfactory solution that makes it viable to leave Firefox open all the time. Even with that restriction, it's still far better than the alternatives.

Asked by jmward 6 iminyaka edlule

Last reply by Jeff Barry 5 iminyaka edlule

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Frequently get error "Firefox is already running" when using desktop shortcuts to web sites

I love Firefox and don't want to use another browser. I frequently get the error "Firefox is already running". I even created a batch file to kill the process so I can … (funda kabanzi)

I love Firefox and don't want to use another browser. I frequently get the error "Firefox is already running". I even created a batch file to kill the process so I can re-launch it. There has to be a real solution.

The key to my issue is... I use shortcuts to web sites from my desktop. This is what seems to trigger the error (but not every time). Please don't tell me to stop using shortcuts; that isn't a solution.

I am using Windows 8.1 64 bit Firefox 32.0.1 (had this same problem with all prior versions too)

Any help is appreciated!

Asked by danenglish2 6 iminyaka edlule

Last reply by FredMcD 6 iminyaka edlule

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How to fix "Sync encountered an error while syncing:Unknown error."

In mid July, after the firefox update, I had decided to close firefox like I usually do before I open the client for my MMORPG Aion, so I did. I end up not turning on fir… (funda kabanzi)

In mid July, after the firefox update, I had decided to close firefox like I usually do before I open the client for my MMORPG Aion, so I did. I end up not turning on firefox for a few days and when I did my bookmarks were gone as well as my toolbar bookmarks and my history. I start to wonder what happened and then I realised that there was a grey bar at the bottom of my browser stating, "Sync encountered an error while syncing: Unknown error. Sync will automatically retry this action.." I had no idea why this would happen as I never had this problem before so I look at the firefox support database but since I'm quite the greenhorn when it comes to programming there was only so much I could understand. I did try looking for corrupt or locked profiles but I saw none. Now as of today it's going on 2 months since the problem began and just today I recieved the firefox 32.0 update but still have this problem so I'm at my wits end and I not sure if I'll ever get it working again. Also my sync account is the one under the new system I had updated a few days before the problem began it also seems to be working on my other devices. Im lost without my bookmarks please help.

Asked by Amarynthia 6 iminyaka edlule

Last reply by Andrew 5 iminyaka edlule

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Autofill password

With this new version of Firefox (32?), ALL of my passwords have been deleted, and any "AUTOFILL" option that was SUPPOSED to exist does NOT, in fact exist. My reaction t… (funda kabanzi)

With this new version of Firefox (32?), ALL of my passwords have been deleted, and any "AUTOFILL" option that was SUPPOSED to exist does NOT, in fact exist. My reaction to this abortion follows: 1) How dare you write a new version of your software that ERASES MY passwords on MY COMPUTER. That SHALL NOT happen again. 2) If I do NOT receive a FIX for this BUG by Monday morning, Sept. 15, 2014 I WILL (not shall) migrate all my browsing to another Browser and purge Firefox from my system, forevermore. For instance, SAFARI has fixed this problem on their browser. 3) You arrogance (or stupidity? or both?) is both monumental and bewildering.

Asked by geoffwalter 6 iminyaka edlule

Last reply by FredMcD 6 iminyaka edlule

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Firefox crashes

Firefox crashes when browsing amazon and other websites. I tried updating firefox but it is up to date. I also tried using safe mode but it still crashes. Crash report: b… (funda kabanzi)

Firefox crashes when browsing amazon and other websites.

I tried updating firefox but it is up to date. I also tried using safe mode but it still crashes.

Crash report: bp-d3757f81-8515-4363-a965-cf4052140915

Asked by leonardlatt 6 iminyaka edlule

Last reply by pashadad 6 iminyaka edlule

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Firefox and Adobe Flash - Why is this combination so slow now?

I don't know when the problem started but it has been many versions of both Firefox and Adobe Flash since Flash has worked reliably and quickly. I have tried many soluti… (funda kabanzi)

I don't know when the problem started but it has been many versions of both Firefox and Adobe Flash since Flash has worked reliably and quickly. I have tried many solutions including uninstalling both Firefox and Flash and reinstalling them yet the performance problems continue. When the dialog appears to send a crash report, many times I do. My Firefox is 32.0.1 and the Flash plug-in is 15,0,0,152. Is there an end in sight for this problem? The standard answer is Mozilla pointing the finger at Adobe and Adobe pointing at Mozilla.

Asked by notter43 6 iminyaka edlule

Last reply by the-edmeister 6 iminyaka edlule

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Video in web sites is choppy, how do I fix this problem?

Sony laptop, XP Home, Firefox 32.0.1. YouTube videos work fine. On web sites get lots of script errors and embedded videos are choppy, Plug-in holder crashes frequently. … (funda kabanzi)

Sony laptop, XP Home, Firefox 32.0.1.

YouTube videos work fine.

On web sites get lots of script errors and embedded videos are choppy, Plug-in holder crashes frequently.

Asked by FirefoxUser58 6 iminyaka edlule

Last reply by TheTobyS5 6 iminyaka edlule

  • Okugcinwe kunqolobane

Why won't photos in Google Images download in their original size?

Just got a new laptop running Windows7 and I downloaded the latest version of Firefox. Whenever I try to download photos from Google Images (by right-clicking Save Image … (funda kabanzi)

Just got a new laptop running Windows7 and I downloaded the latest version of Firefox. Whenever I try to download photos from Google Images (by right-clicking Save Image As), they are being automatically resized (much smaller) and instead of getting the name/code number of the photo, the File Name box simply reads "images" for whichever picture I try to download. This never happened with my old laptop (Vista) which also ran Firefox - when I right-clicked on a photo and selected Save Image As, I'd get the name of the photo in the File Name box and the image would save in its original size.

Help! Thanks in advance.

Asked by lazysunbather 6 iminyaka edlule

Last reply by guigs 6 iminyaka edlule

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Is Mozilla "hijacking" my startup page by overriding it and substituting the Mozilla Startup Page whenever I start Firefox??

Recently, I customized my startup page (as I have many times in the past.) Since then, however, each time I start Firefox it opens with the Firefox Startup Page, includi… (funda kabanzi)

Recently, I customized my startup page (as I have many times in the past.) Since then, however, each time I start Firefox it opens with the Firefox Startup Page, including the Firefox logo/icon. Even though I've rebooted my pc and reset my startup page quite a few times in an effort to overcome the problem (sometimes using Options and others by dragging the tab to the Home icon) the Mozilla Startup Page trumps me and replaces my customized choice. What's the deal? Is Mozilla intentionally overriding users' choices and imposing its own, preferred Mozilla Startup Page or is it the result of an unrelated "hijacker"?

Thank you.

Asked by mporter24 6 iminyaka edlule

Last reply by cor-el 6 iminyaka edlule

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Nightly in other languages

Why Mozilla does not create a website like this: https://www.mozilla.org/en-US/firefox/all/ but with nightly versions? I'm interested on it :D … (funda kabanzi)

Why Mozilla does not create a website like this: https://www.mozilla.org/en-US/firefox/all/ but with nightly versions? I'm interested on it :D

Asked by Rodrigo 6 iminyaka edlule

Last reply by James 6 iminyaka edlule

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Firefox crashes

latest version 32.0.1 installed Kaspersky latest security thing is up to date and running Laptop disinfected y/day after issues Full scan run again and now no issues Rebo… (funda kabanzi)

latest version 32.0.1 installed Kaspersky latest security thing is up to date and running Laptop disinfected y/day after issues Full scan run again and now no issues Rebooted FF still crashes and has unwanted pop ups

any help gratefully received

Asked by RubyTuesdayGG 6 iminyaka edlule

Last reply by cor-el 6 iminyaka edlule

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Firefox crashes

Firefox started crashing repeatedly 9/15/2014. It won't let me open a second browser, then says plugin container stopped working. Firefox hangs when I try to start with a… (funda kabanzi)

Firefox started crashing repeatedly 9/15/2014. It won't let me open a second browser, then says plugin container stopped working. Firefox hangs when I try to start with addons disabled, then won't load. Plugins are up to date, flash player is up to date. What else should I check or do? Thanks.

Asked by kebanda 6 iminyaka edlule

Last reply by FredMcD 6 iminyaka edlule

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Sync not working between Window laptop with FF32 and android tablet with FF 32

Computer is Windows 7 Labtop is android Both devices have FF 32 As far as I know, sync has been set up correctly on both devices. But they still aren't syncing. It look… (funda kabanzi)

Computer is Windows 7 Labtop is android Both devices have FF 32 As far as I know, sync has been set up correctly on both devices. But they still aren't syncing. It looks as though I've missed a setting somewhere. I tried to follow instructions from an earlier version, but the menu was different and I couldn't find the counterparts for this version. Any help is greatly appreciated.

Jane

Asked by Jane 6 iminyaka edlule

Last reply by guigs 6 iminyaka edlule

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My homepage is set to google, but firefox always open to the previous page I was on. How do I fix this problem??

I have my homepage set to Google, but after I have closed the browser and come back to open it up another time, it goes tot he previous page I was on. I have checked all … (funda kabanzi)

I have my homepage set to Google, but after I have closed the browser and come back to open it up another time, it goes tot he previous page I was on. I have checked all my settings and it shows that I have it set up properly, but it refuses to work.

Asked by edean05 6 iminyaka edlule

Last reply by Talha 6 iminyaka edlule

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Controls icons disappear when viewing desktop features page after 32.0.1 update applied!

The control icons disappear when viewing the https://www.mozilla.org/en-US/firefox/desktop/ (!) page after updating to FX 32.0.1. If I scroll to the bottom of this page, … (funda kabanzi)

The control icons disappear when viewing the https://www.mozilla.org/en-US/firefox/desktop/ (!) page after updating to FX 32.0.1.

If I scroll to the bottom of this page, then scroll back to the top, just prior to reaching the top of the page, all of my control icons in FX disappear. They're still they're, and work, but appear as grey-on-grey so are rendered invsible. The tool tips, etc, all work fine

e.g. - Back button shows as an empty grey circle - RHS of tabs doesn't show close "x" - Open Menu doesn't show up.

It makes using the browser a bit hit and miss!

Closing the browser and reopening it makes the problem go away, but if re-view the above page and scroll down and up again, and it recurs.

I have screenshots, if required ...

TBH, the problem may have existed on FX 32.0, as I hadn't performed the scroll-down and back on this particular page

Asked by obelix6320 6 iminyaka edlule

Last reply by turboscrew 6 iminyaka edlule

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Connection Timeout Error

Whenever I go to a different webpage or use my go-to art program (FireAlpaca), and then come back and want to check deviantART, it says this, "The connection was reset." … (funda kabanzi)

Whenever I go to a different webpage or use my go-to art program (FireAlpaca), and then come back and want to check deviantART, it says this, "The connection was reset." I have to end up pressing "Try Again", and the page will finally load. This never happened before, though, and I've tried clearing my Cache, then restarting FireFox, but that didn't work either. It only happens with deviantART, and it's getting highly annoying. Things on that site specifically aren't loading as fast as they usually do. There's nothing wrong with my connection. Is there anything I can do to fix this?

Asked by KittiBluStout 6 iminyaka edlule

Last reply by guigs 6 iminyaka edlule

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new update wont allow me to connect to web client web camera address. help?

I was able to connect to the following address in firefox before the latest update : http://66.102.195.86:85/webcamera.html I am able to access the site via IE, and need … (funda kabanzi)

I was able to connect to the following address in firefox before the latest update : http://66.102.195.86:85/webcamera.html

I am able to access the site via IE, and need to view these security cameras on my property.

Asked by redsoxbill 6 iminyaka edlule

Last reply by FredMcD 6 iminyaka edlule

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persons plus reports 'an error occurred while loading your favourites'

Right clicking the personas+ icon, select 'My favourites'. Usually, instead of a list of favourites, I get a single entry 'An error occured while loading your favourites'… (funda kabanzi)

Right clicking the personas+ icon, select 'My favourites'. Usually, instead of a list of favourites, I get a single entry 'An error occured while loading your favourites'.

Sometimes, for no apparent reason, it works.

Sometimes, it asks my to log in, so I do, but it doesn't seem to believe I've logged in - at least the menu doesn't change.

Asked by thostanner 6 iminyaka edlule

Last reply by guigs 6 iminyaka edlule

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Firefox crashes

Firefox keeps crashing after virus infection. Ran malwarebytes, microsoft antivirus and 3-4 other AV scanners inc. rootkit scans. Everything is clean but it still crashes… (funda kabanzi)

Firefox keeps crashing after virus infection. Ran malwarebytes, microsoft antivirus and 3-4 other AV scanners inc. rootkit scans. Everything is clean but it still crashes. Removed and reinstalled firefox but still crashes. no addons. plug-ins seem up to date. No other programs on the system crash.

Asked by prtassoc 6 iminyaka edlule

Last reply by FredMcD 6 iminyaka edlule