This also happens when your Computer is affected with virus.

Nope i dont have any virus, i use avast and router's firewall, i also scanned whole computer now to be sure. btw its same for my second computer and it happend around same time.

There is viruses, and then there is Mal-Ware. Most virus programs can't detect them.

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:

• Microsoft Safety Scanner
• MalwareBytes' Anti-Malware
• Anti-Rootkit Utility - TDSSKiller
• AdwCleaner (for more info, see this alternate AdwCleaner download page)
• Hitman Pro
• ESET Online Scanner

Microsoft Security Essentials is a good permanent antivirus for Windows 7/Vista/XP if you don't already have one.

Further information can be found in the Troubleshoot Firefox issues caused by malware article.

Did this fix your problems? Please report back to us!

Start Firefox in Safe Mode {web link} While you are in safe mode;

Type about:preferences in the address bar and press enter

Select Advanced > General. Look for and turn off Use Hardware Acceleration.

Poke around safe web sites. Are there any problems?

Then restart.

First image is from my PC full scan with Microsoft Safety Scanner, second is from my laptop and i'm little bit worried about this kaygen, tho it doesn't fix my problem with YT videos freezing. I would like to add that it is completely random when it freezes. Some times while i listen to my playlist it will go normaly for like 5 vids and sometimes its after each vid.

When i run on safe mode theres no freezing so i guess its sth with my plugins/addons ?

That is what safe mode is for. If the problem goes away . . . . .

Type about:support in the address bar and press Enter. Under the main banner, press the button; Copy Text To Clipboard.. Then in the reply box at the bottom of this page, do a right click in the box and select Paste. This will show us your system details. No Personal Information Is Collected.

My laptop

Informacje o aplikacji

Nazwa: Firefox Wersja: 32.0.2 Identyfikator programu: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:32.0) Gecko/20100101 Firefox/32.0

Zgłoszenia awarii z ostatnich 3 dni

Wszystkie zgłoszenia awarii (łącznie z jednym oczekującym we wskazanym okresie)

Rozszerzenia

Nazwa: Adblock Plus Wersja: 2.6.4 Włączone: true ID: {d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}

Nazwa: ProxMate - Proxy on steroids! Wersja: 2.3.3 Włączone: true ID: jid1-QpHD8URtZWJC2A@jetpack

Nazwa: YouTube High Definition Wersja: 32.0 Włączone: true ID: {7b1bf0b6-a1b9-42b0-b75d-252036438bdc}

Nazwa: avast! Online Security Wersja: 9.0.2021.112 Włączone: false ID: wrc@avast.com

Grafika

Data sterownika: 8-8-2013 Data sterownika (GPU #2): 7-2-2014 GPU #2 Active: false ID dostawcy: 0x8086 ID dostawcy (GPU #2): 0x10de ID urządzenia: 0x0416 ID urządzenia (GPU #2): 0x1292 Okna ze sprzętowym przyspieszeniem grafiki: 1/1 Direct3D 10 Opis adaptera: Intel(R) HD Graphics 4600 Opis adaptera (GPU #2): NVIDIA GeForce GT 740M RAM adaptera: Unknown RAM adaptera (GPU #2): 2048 Renderer WebGL: Google Inc. -- ANGLE (Intel(R) HD Graphics 4600 Direct3D9Ex vs_3_0 ps_3_0) Sterowniki adaptera: igdumdim64 igd10iumd64 igd10iumd64 igdumdim32 igd10iumd32 igd10iumd32 Sterowniki adaptera (GPU #2): nvd3dumx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um Wersja sterownika: 9.18.10.3272 Wersja sterownika (GPU #2): 9.18.13.4052 windowLayerManagerRemote: false Włączone Direct2D: true Włączone DirectWrite: true (6.1.7601.17514) AzureCanvasBackend: direct2d AzureContentBackend: direct2d AzureFallbackCanvasBackend: cairo AzureSkiaAccelerated: 0

Ważne zmodyfikowane ustawienia

accessibility.typeaheadfind.flashBar: 0 browser.cache.disk.capacity: 358400 browser.cache.disk.smart_size_cached_value: 358400 browser.cache.disk.smart_size.first_run: false browser.cache.disk.smart_size.use_old_max: false browser.cache.frecency_experiment: 3 browser.places.smartBookmarksVersion: 7 browser.sessionstore.upgradeBackup.latestBuildID: 20140917194002 browser.startup.homepage: www.google.pl browser.startup.homepage_override.buildID: 20140917194002 browser.startup.homepage_override.mstone: 32.0.2 dom.mozApps.used: true extensions.lastAppVersion: 32.0.2 font.internaluseonly.changed: true gfx.direct3d.last_used_feature_level_idx: 0 network.cookie.prefsMigrated: true network.http.pipelining: true network.http.pipelining.max-optimistic-requests: 8 network.http.proxy.pipelining: true places.database.lastMaintenance: 1411287319 places.history.expiration.transient_current_max_pages: 104858 plugin.disable_full_page_plugin_for_types: application/pdf plugin.importedState: true plugin.state.npbattlelog: 1 plugin.state.npdeployjava: 0 plugin.state.npesnsonar: 1 plugin.state.npican: 1 print.printer_HP_LaserJet_4000_Series_PCL6.print_bgcolor: false print.printer_HP_LaserJet_4000_Series_PCL6.print_bgimages: false print.printer_HP_LaserJet_4000_Series_PCL6.print_colorspace: print.printer_HP_LaserJet_4000_Series_PCL6.print_command: print.printer_HP_LaserJet_4000_Series_PCL6.print_downloadfonts: false print.printer_HP_LaserJet_4000_Series_PCL6.print_duplex: -907488824 print.printer_HP_LaserJet_4000_Series_PCL6.print_edge_bottom: 0 print.printer_HP_LaserJet_4000_Series_PCL6.print_edge_left: 0 print.printer_HP_LaserJet_4000_Series_PCL6.print_edge_right: 0 print.printer_HP_LaserJet_4000_Series_PCL6.print_edge_top: 0 print.printer_HP_LaserJet_4000_Series_PCL6.print_evenpages: true print.printer_HP_LaserJet_4000_Series_PCL6.print_footercenter: print.printer_HP_LaserJet_4000_Series_PCL6.print_footerleft: &PT print.printer_HP_LaserJet_4000_Series_PCL6.print_footerright: &D print.printer_HP_LaserJet_4000_Series_PCL6.print_headercenter: print.printer_HP_LaserJet_4000_Series_PCL6.print_headerleft: &T print.printer_HP_LaserJet_4000_Series_PCL6.print_headerright: &U print.printer_HP_LaserJet_4000_Series_PCL6.print_in_color: true print.printer_HP_LaserJet_4000_Series_PCL6.print_margin_bottom: 0.5 print.printer_HP_LaserJet_4000_Series_PCL6.print_margin_left: 0.5 print.printer_HP_LaserJet_4000_Series_PCL6.print_margin_right: 0.5 print.printer_HP_LaserJet_4000_Series_PCL6.print_margin_top: 0.5 print.printer_HP_LaserJet_4000_Series_PCL6.print_oddpages: true print.printer_HP_LaserJet_4000_Series_PCL6.print_orientation: 0 print.printer_HP_LaserJet_4000_Series_PCL6.print_page_delay: 50 print.printer_HP_LaserJet_4000_Series_PCL6.print_paper_data: 9 print.printer_HP_LaserJet_4000_Series_PCL6.print_paper_height: 11,00 print.printer_HP_LaserJet_4000_Series_PCL6.print_paper_name: print.printer_HP_LaserJet_4000_Series_PCL6.print_paper_size_type: 0 print.printer_HP_LaserJet_4000_Series_PCL6.print_paper_size_unit: 1 print.printer_HP_LaserJet_4000_Series_PCL6.print_paper_width: 8,50 print.printer_HP_LaserJet_4000_Series_PCL6.print_plex_name: print.printer_HP_LaserJet_4000_Series_PCL6.print_resolution: 174396752 print.printer_HP_LaserJet_4000_Series_PCL6.print_resolution_name: print.printer_HP_LaserJet_4000_Series_PCL6.print_reversed: false print.printer_HP_LaserJet_4000_Series_PCL6.print_scaling: 1,00 print.printer_HP_LaserJet_4000_Series_PCL6.print_shrink_to_fit: true print.printer_HP_LaserJet_4000_Series_PCL6.print_to_file: false print.printer_HP_LaserJet_4000_Series_PCL6.print_unwriteable_margin_bottom: 0 print.printer_HP_LaserJet_4000_Series_PCL6.print_unwriteable_margin_left: 0 print.printer_HP_LaserJet_4000_Series_PCL6.print_unwriteable_margin_right: 0 print.printer_HP_LaserJet_4000_Series_PCL6.print_unwriteable_margin_top: 0 privacy.sanitize.migrateFx3Prefs: true privacy.sanitize.timeSpan: 3 storage.vacuum.last.index: 1 storage.vacuum.last.places.sqlite: 1408780636

Preferencje user.js

Folder profilu użytkownika zawiera plik user.js z preferencjami, które nie zostały utworzone przez program Firefox.

JavaScript

Przyrostowy GC: true

Ułatwienia dostępu

Aktywne: false Zablokuj ułatwienia dostępu: 0

Wersje bibliotek

NSPR Oczekiwana wersja minimalna: 4.10.6 Wersja w użyciu: 4.10.6

NSS Oczekiwana wersja minimalna: 3.16.4 Basic ECC Wersja w użyciu: 3.16.4 Basic ECC

NSSSMIME Oczekiwana wersja minimalna: 3.16.4 Basic ECC Wersja w użyciu: 3.16.4 Basic ECC

NSSSSL Oczekiwana wersja minimalna: 3.16.4 Basic ECC Wersja w użyciu: 3.16.4 Basic ECC

NSSUTIL Oczekiwana wersja minimalna: 3.16.4 Wersja w użyciu: 3.16.4

Eksperymenty

My PC

Informacje o aplikacji

Nazwa: Firefox Wersja: 32.0.2 Identyfikator programu: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:32.0) Gecko/20100101 Firefox/32.0

Zgłoszenia awarii z ostatnich 3 dni

Wszystkie zgłoszenia awarii (łącznie z jednym oczekującym we wskazanym okresie)

Rozszerzenia

Nazwa: Adblock Plus Wersja: 2.6.4 Włączone: true ID: {d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}

Nazwa: ProxMate - Proxy on steroids! Wersja: 2.3.3 Włączone: true ID: jid1-QpHD8URtZWJC2A@jetpack

Nazwa: YouTube High Definition Wersja: 32.0 Włączone: true ID: {7b1bf0b6-a1b9-42b0-b75d-252036438bdc}

Nazwa: avast! Online Security Wersja: 9.0.2021.112 Włączone: false ID: wrc@avast.com

Grafika

Data sterownika: 5-22-2014 GPU #2 Active: false ID dostawcy: 0x1002 ID urządzenia: 0x6719 Okna ze sprzętowym przyspieszeniem grafiki: 1/1 Direct3D 10 Opis adaptera: AMD Radeon HD 6900 Series RAM adaptera: 1024 Renderer WebGL: Google Inc. -- ANGLE (AMD Radeon HD 6900 Series Direct3D9Ex vs_3_0 ps_3_0) Sterowniki adaptera: aticfx64 aticfx64 aticfx64 aticfx32 aticfx32 aticfx32 atiumd64 atidxx64 atidxx64 atiumdag atidxx32 atidxx32 atiumdva atiumd6a atitmm64 Wersja sterownika: 14.200.0.0 windowLayerManagerRemote: false Włączone Direct2D: true Włączone DirectWrite: true (6.1.7601.17514) AzureCanvasBackend: direct2d AzureContentBackend: direct2d AzureFallbackCanvasBackend: cairo AzureSkiaAccelerated: 0

Ważne zmodyfikowane ustawienia

accessibility.typeaheadfind.flashBar: 0 browser.cache.disk.capacity: 358400 browser.cache.disk.smart_size_cached_value: 358400 browser.cache.disk.smart_size.first_run: false browser.cache.disk.smart_size.use_old_max: false browser.cache.frecency_experiment: 3 browser.places.smartBookmarksVersion: 7 browser.sessionstore.restore_on_demand: false browser.sessionstore.upgradeBackup.latestBuildID: 20140917194002 browser.startup.homepage: google.pl browser.startup.homepage_override.buildID: 20140917194002 browser.startup.homepage_override.mstone: 32.0.2 browser.tabs.closeWindowWithLastTab: false browser.tabs.warnOnClose: false dom.mozApps.used: true extensions.lastAppVersion: 32.0.2 font.internaluseonly.changed: true gfx.direct3d.last_used_feature_level_idx: 0 network.cookie.prefsMigrated: true places.database.lastMaintenance: 1411297666 places.history.expiration.transient_current_max_pages: 104858 plugin.disable_full_page_plugin_for_types: application/pdf plugin.importedState: true plugin.state.npdeployjava: 0 privacy.cpd.offlineApps: true privacy.cpd.sessions: false privacy.cpd.siteSettings: true privacy.sanitize.migrateFx3Prefs: true privacy.sanitize.timeSpan: 0 storage.vacuum.last.index: 1 storage.vacuum.last.places.sqlite: 1409999303

JavaScript

Przyrostowy GC: true

Ułatwienia dostępu

Aktywne: false Zablokuj ułatwienia dostępu: 0

Wersje bibliotek

NSPR Oczekiwana wersja minimalna: 4.10.6 Wersja w użyciu: 4.10.6

NSS Oczekiwana wersja minimalna: 3.16.4 Basic ECC Wersja w użyciu: 3.16.4 Basic ECC

NSSSMIME Oczekiwana wersja minimalna: 3.16.4 Basic ECC Wersja w użyciu: 3.16.4 Basic ECC

NSSSSL Oczekiwana wersja minimalna: 3.16.4 Basic ECC Wersja w użyciu: 3.16.4 Basic ECC

NSSUTIL Oczekiwana wersja minimalna: 3.16.4 Wersja w użyciu: 3.16.4

Eksperymenty

Some added toolbar and anti-virus add-ons are known to cause Firefox issues. Disable All of them.

avast add-on is disabled all time on both computers and i dont have any toolbar either

Hello,

I am sorry that you had to face this problem. A/c to [ http://www.donsalva.com/2009/09/05/how-to-fix-the-video-lag-in-firefox ] the lag is caused by Firefox’s session saving feature. A simple and fast change in it and “poof” went the lag. Now lets try to fix it. Follow the following steps:

   Open Firefox and type in “about:config” (without the “) in the Address      Bar and hit Enter.

   Type in “session” in the “Filter” line at the top of the list.

   Find “browser.sessionstore.interval” and double click it. The 10000 milliseconds (equals 10 seconds) is the interval in which Firefox keeps saving your session in case of a crash; same amount of time between video lags.

   Change it to something different. 120000 equals 2 minutes, 300000 equals 5 minutes or something else you desire. 

Hope it helps.

Nope, still same problem, but certainly it does slow firefox, pages are loading longer. I will change it back btw it was 15000 not 10000.

bump?

Will i get any answer that can help me?

Disable these and see if there is any difference.

I will call for more help.

Nazwa: YouTube High Definition Wersja: 32.0 Włączone: true ID: {7b1bf0b6-a1b9-42b0-b75d-252036438bdc}

Nazwa: avast! Online Security Wersja: 9.0.2021.112 Włączone: false ID: wrc@avast.com

well i guess its sth with YT HD thanks anyways

I do not understand your last post.

This is too vague. Why would the video freeze at 14 seconds because you have a virus? What is this virus?

0:14 is the time at which an pop up ad would be scheduled to display and so I think it's linked to adblock plus but I can't find any more information about it.