My firefox, after update to 37.0.2 is closing everytime I open a new tab

Hello,
My firefox, after update to 37.0.2 is closing everytime I open a new tab.
I started with a new profile and have the same problem.
I formated my HD and instaled everything again, and I still have the same problem
Regards,
Cristal

You can check for issues with the new tab page setting.
See this article about the New Tab page (about:newtab):
*https://support.mozilla.org/kb/new-tab-page-show-hide-and-customize-top-sites
You can check the browser.newtab.url pref on the about:config page and set that pref to your preferred new tab page.
* the default new tab page with the tiles is about:newtab
* the default home page is about:home
* for a blank page you can use about:blank
The browser.newtabpage.enabled pref should be set to true to use the page set via browser.newtab.url as the new tab page.
You can open the about:config page via the location/address bar.
You can accept the warning and click "I'll be careful" to continue.
*http://kb.mozillazine.org/about:config

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I had that too. On the bottom right of the AVG search page is a link which leads you to where you can switch it off. This restores normal Speed Dial operation.
This hijacking has really cheesed me off. I've just downloaded Avast and am going to put it on in place of AVG.

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When I attempt to open a new tab, Firefox automatically refreshes the already opened and loaded websites in other tabs.

Start Firefox in [[Safe Mode]] to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
* Don't make any changes on the Safe mode start window.
See:
* [[Troubleshooting extensions and themes]]
* [[Troubleshooting plugins]]
If it does work in Safe-mode then disable all extensions and then try to find which is causing it by enabling one at a time until the problem reappears.
* Use "Disable all add-ons" on the [[Safe mode]] start window to disable all extensions.
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Idiotic system requires me to become a member? only thread does not post a solution to stop annoying background music when opening a new tab.
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Update Flash and Silverlight:
Version 5.4.2.18903
Shockwave Flash 13.0 r0
5.1.30514.0
Also may want to reset Firefox just in case there is an issue with changed preferences.
If that is not the case I also recommend a malware scan.
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.
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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See also:
*http://kb.mozillazine.org/Corrupt_localstore.rdf
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See "Basic Troubleshooting: Make a new profile":
*https://support.mozilla.org/kb/Basic+Troubleshooting#w_8-make-a-new-profile
There may be extensions and plugins installed by default in a new profile, so check that in "Tools > Add-ons > Extensions & Plugins" in case there are still problems.
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See:
*http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

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Hi,
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See:
*http://www.babylon.com/support/faq/usage.html#22
*[[/questions/746530]] How do I fully remove Babylon

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*http://kb.mozillazine.org/about:config
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*https://support.mozilla.org/kb/new-tab-page-show-hide-and-customize-top-sites
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*name: browser.pagethumbnails.capturing_disabled with value: true
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Hello,
The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. 
'''Note''': ''This will cause you to lose any Extensions, Open websites, and some Preferences.''
To Reset Firefox do the following:
#Go to Firefox > Help > Troubleshooting Information.
#Click the "Reset Firefox" button.
#Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
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Did this fix your problems? Please report back to us!
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* "Clear the Cache": Tools > Options > Advanced > Network > Offline Storage (Cache): "Clear Now"
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Start Firefox in [[Safe Mode]] to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Appearance/Themes).
* Don't make any changes on the Safe mode start window.
See:
* [[Troubleshooting extensions and themes]]
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Firefox after updating to 37.0.1 doesn't play youtube videos.
https://support.mozilla.org/en-US/questions/1055848
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*http://www.youtube.com/html5
Do a malware check with several malware scanning programs on the Windows computer.
Please scan with all programs because each program detects different malware.
All these programs have free versions.
Make sure that you update each program to get the latest version of their databases before doing a scan.
*Malwarebytes' Anti-Malware: http://www.malwarebytes.org/mbam.php
*AdwCleaner: http://www.bleepingcomputer.com/download/adwcleaner/ http://www.softpedia.com/get/Antivirus/Removal-Tools/AdwCleaner.shtml
*SuperAntispyware: http://www.superantispyware.com/
*Microsoft Safety Scanner: http://www.microsoft.com/security/scanner/en-us/default.aspx
*Windows Defender: http://windows.microsoft.com/en-us/windows/using-defender
*Spybot Search & Destroy: http://www.safer-networking.org/en/index.html
*Kasperky Free Security Scan: http://www.kaspersky.com/security-scan
You can also do a check for a rootkit infection with TDSSKiller.
*Anti-rootkit utility TDSSKiller: http://support.kaspersky.com/5350?el=88446
See also:
*"Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked
*https://support.mozilla.org/kb/troubleshoot-firefox-issues-caused-malware

My firefox, after update to 37.0.2 is closing everytime I open a new tab

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