Firefox lags when scrolling

Hi! I've just installed Firefox Beta on my HTC Desire HD and I have a problem. Even though everything seems to work quickly, scrolling lags a lot, even on very simple mobile websites. It's strange, because at the moment when it's not lagging, scrolling is very smooth - it's just that when scrolling, every few moments it just stops or jumps instead of scrolling smoothly. I don't think it's a problem with my phone, because other browsers that I've tried (the built in browser, and Opera Mobile) don't have that problem. Is it a known bug? Does anyone else have it? Can it be fixed somehow?

Hello TAJNOST, any luck if you [https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems#w_turn-off-hardware-acceleration Turn off hardware acceleration] ?
thank you

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Try disabling graphics hardware acceleration. Since this feature was added to Firefox, it has gradually improved, but there still are a few glitches.
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Firefox ripple lags when scrolling

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Hello TAJNOST, any luck if you [https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems#w_turn-off-hardware-acceleration Turn off hardware acceleration] ?
thank you

Firefox lags when it is running more than 16 hours

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Noticing a screen lag when scrolling. how can this be corrected?

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Thanks for using Apple Support Communities.
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Peace ppl!
I'm experiencing firefox tearing issues/visual artifacts when smooth scrolling is enabled on aur/firefox-pgo 3.6.6-1.
One way to solve this is to enable vsync. Simply enable desktop effects on kde4 and enable vsync.
$ glxgears
Running synchronized to the vertical refresh. The framerate should be
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http://www.zupmage.eu/i/bV8yTk2LIZ.png
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Firefox lags when I switch tabs

Whenever I switch tabs, it takes 2-10 seconds for firefox to respond. When it takes longer, windows even mark browser as Not responding.
In the task manager I can see that it is using full one of my 4 cores.
Very rarely, the firefox also "spits out" the tab I click into a new window - what is that supposed to be?
I tryed to click tabs, double click tabs and none of such actions led to a new window - but as soon as the browser lags, new window is very likely to appear.
I have added the debug info. But I insist that the thing is same in the no-addon mode. I also remember having similar problem with clean firefox installation.

Sometimes a problem with Firefox may be a result of malware installed on your computer, that you may not be aware of.
You can try these free programs to scan for malware, which work with your existing antivirus software:
* [http://www.microsoft.com/security/scanner/default.aspx Microsoft Safety Scanner]
* [http://www.malwarebytes.org/products/malwarebytes_free/ MalwareBytes' Anti-Malware]
* [http://support.kaspersky.com/faq/?qid=208283363 TDSSKiller - AntiRootkit Utility]
* [http://www.surfright.nl/en/hitmanpro/ Hitman Pro]
* [http://www.eset.com/us/online-scanner/ ESET Online Scanner]
[http://windows.microsoft.com/MSE Microsoft Security Essentials] is a good permanent antivirus for Windows 7/Vista/XP if you don't already have one.
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When I was trying different versions of Firefox to see if they all had the scrolling problem, I made sure to try 36, 38, and even 31.5 ESL portable. They all have the scrolling problem when my laptop is unplugged. However, when I tried Tor just to see what would happen - bingo! Perfectly smooth scrolling once more. This is especially weird as Tor uses 31.5.3 ESL as a base...
This made me think that it could potentially be a plugin, as Tor doesn't have any plugins installed other than Flash. However, after first disabling, then manually removing, every plugin that was listed in about:plugins the problem continues to persist.
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Last edited by graysky (2012-01-13 21:11:54)

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Firefox crashes when scolling pages in youtube

I've been having this problem the last 2 weeks, more or less. Firefox crashes when on youtube when I start to scroll or even when I try to go to another tab.
It doesn't seem to be the plugin that crashes because when that crashes it usually doesn't crash the whole browser, when it's only the plugin that crashes you get the message "shockwave flash has stopped working" or something like that, and if you click on the stop plugin button, it just greys out the video frame; I've had this type of crash too, yesterday, but not on the youtube site, it was on another site, in a page with several youtube videos embedded, maybe the two things are related, I don't know, but this type of crash only happened yesterday, and I dont' even recall the last time it had happened.
The other type of crash, as I said, crashes the whole browser, but I also noticed that it doesn't save a crash report; today it happened several times, but the last crash report is the one from yesterday, from the plugin crash I was talking about!
Also, I tried with internet explorer, and all seems to work fine, no crash when I scroll or view videos on youtube; also yesterday, when the plugin was crashing repeatedly, I went in IE and tried with that, and all was working fine.
To sum up, Firefox crashes when scrolling down pages on youtube, not always, but a lot, sometimes when switching to another tab from youtube, yesterday the plugin crashed repeatedly in a page with embedded youtube videos, no crash report for the first type of crash, IE work fine in both cases.
Finally, hardware acceleration in the plugin is disabled, I tried having protected mode in the Flash plugin both disabled and enabled, and no update for my graphic card is available.
Here are some crash reports:
bp-6b4c46ed-2f56-4444-97ab-3f0962150321
bp-1ae616b1-a70c-4406-b40f-e94822150321
bp-47d1ca1d-8e27-4cac-b7cc-50bf32150321
bp-1bef437a-5075-448e-9620-c88622150321
bp-4fbdba33-f847-4b22-8983-765122150321
bp-37f62c1a-bd76-425e-a43b-2dc8e2150306
and here is the windows crash report when the whole browser crashes:
Description:
A problem caused this program to stop interacting with Windows.
Problem signature:
Problem Event Name: AppHangXProcB1
Application Name: firefox.exe
Application Version: 36.0.1.5542
Application Timestamp: 54f8437a
Hang Signature: e5f0
Hang Type: 134217760
Waiting on Application Name: FlashPlayerPlugin_16_0_0_305.exe
Waiting on Application Version: 16.0.0.305
OS Version: 6.3.9600.2.0.0.768.101
Locale ID: 2057
Additional Hang Signature 1: e5f09e41f6195b22923bbdbdf7136114
Additional Hang Signature 2: b3f6
Additional Hang Signature 3: b3f6d66c873393c06de5fca14a41a5d5
Additional Hang Signature 4: e5f0
Additional Hang Signature 5: e5f09e41f6195b22923bbdbdf7136114
Additional Hang Signature 6: b3f6
Additional Hang Signature 7: b3f6d66c873393c06de5fca14a41a5d5
Read our privacy statement online:
http://go.microsoft.com/fwlink/?linkid=280262
If the online privacy statement is not available, please read our privacy statement offline:
C:\WINDOWS\system32\en-GB\erofflps.txt
Problem signature:
Problem Event Name: APPCRASH
Application Name: plugin-container.exe
Application Version: 36.0.1.5542
Application Timestamp: 54f851c0
Fault Module Name: mozalloc.dll
Fault Module Version: 36.0.1.5542
Fault Module Timestamp: 54f8437e
Exception Code: 80000003
Exception Offset: 00001e02
OS Version: 6.3.9600.2.0.0.768.101
Locale ID: 2057
Additional Information 1: 5861
Additional Information 2: 5861822e1919d7c014bbb064c64908b2
Additional Information 3: a10f
Additional Information 4: a10ff7d2bb2516fdc753f9c34fc3b069
Read our privacy statement online:
http://go.microsoft.com/fwlink/?linkid=280262
If the online privacy statement is not available, please read our privacy statement offline:
C:\WINDOWS\system32\en-GB\erofflps.txt
Problem signature:
Problem Event Name: APPCRASH
Application Name: plugin-container.exe
Application Version: 36.0.1.5542
Application Timestamp: 54f851c0
Fault Module Name: mozalloc.dll
Fault Module Version: 36.0.1.5542
Fault Module Timestamp: 54f8437e
Exception Code: 80000003
Exception Offset: 00001e02
OS Version: 6.3.9600.2.0.0.768.101
Locale ID: 2057
Additional Information 1: 5861
Additional Information 2: 5861822e1919d7c014bbb064c64908b2
Additional Information 3: a10f
Additional Information 4: a10ff7d2bb2516fdc753f9c34fc3b069
Read our privacy statement online:
http://go.microsoft.com/fwlink/?linkid=280262
If the online privacy statement is not available, please read our privacy statement offline:
C:\WINDOWS\system32\en-GB\erofflps.txt
I also did a system file check and it says "Windows Resource Protection found corrupt files but was unable to fix some of them". In the log then, the only file that seems it was not possible to repair is "member file [l:36{18}]"Amd64\CNBJ2530.DPB" of prncacla.inf, Version = 6.3.9600.17415". The log is huge so I cannot copy it, I don't know if it's possible to upload a text file, but then again I don't think there's much more. As I said no graphics driver updates are available for my card. After the System file check I went to youtube and started scrolling up and down and the crash happened.

Thank you for clearing that up. I have another idea. There is a feature called accelerated scrolling in Firefox, however there are also modules that might be associated with malware. Options > Advanced > General > Smooth scrolling (uncheck this to test)
Sometimes a problem with Firefox may be a result of malware installed on your computer, that you may not be aware of.
You can try these free programs to scan for malware, which work with your existing antivirus software:
* [http://www.microsoft.com/security/scanner/default.aspx Microsoft Safety Scanner]
* [http://www.malwarebytes.org/products/malwarebytes_free/ MalwareBytes' Anti-Malware]
* [http://support.kaspersky.com/viruses/disinfection/5350 Anti-Rootkit Utility - TDSSKiller]
* [http://general-changelog-team.fr/en/downloads/viewdownload/20-outils-de-xplode/2-adwcleaner AdwCleaner] (for more info, see this [http://www.bleepingcomputer.com/download/adwcleaner/ alternate AdwCleaner download page])
* [http://www.surfright.nl/en/hitmanpro/ Hitman Pro]
* [http://www.eset.com/us/online-scanner/ ESET Online Scanner]
[http://windows.microsoft.com/MSE Microsoft Security Essentials] is a good permanent antivirus for Windows 7/Vista/XP if you don't already have one. Windows 8 has antivirus [http://www.microsoft.com/security/pc-security/windows8.aspx#antivirus built-in] already.
Further information can be found in the [[Troubleshoot Firefox issues caused by malware]] article.
Did this fix your problems? Please report back to us!

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I've tried some possible solutions here in the support but it keeps happening.
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Firefox lags when scrolling

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