here is the error pages.

Hi, Please check if this happens in [https://support.mozilla.com/en-US/kb/Safe%20Mode Safe Mode]. [http://kb.mozillazine.org/Problematic_extensions Problematic Extensions] [https://support.mozilla.com/en-US/kb/Troubleshooting%20extensions%20and%20themes Troubleshooting Extensions and Themes] [http://support.mozilla.com/en-US/kb/Uninstalling+add-ons Uninstalling Add-ons] [http://kb.mozillazine.org/Uninstalling_toolbars Uninstalling Toolbars] Safe mode disables the installed '''Extensions''', and themes ('''Appearance''') in '''Tools''' ('''Alt''' + '''T''') > '''Add-ons'''. Hardware acceleration is also temporarily disabled - the manual setting is '''Tools''' > '''Options''' > '''Advanced''' > '''General''' > '''Use hardware acceleration when available'''. [https://support.mozilla.org/en-US/kb/Options%20window%20-%20Advanced%20panel?as=u Options > Advanced]. All these settings/add-ons can also be individually or collectively disabled/enabled/changed in Firefox normal mode to check if an extension, theme or hardware acceleration is causing issues.

it is can't solve perfectly.But error time taken decrease. Thanks

You can also try to '''Reset toolbars and controls''' and '''Make changes and restart''' in the [https://support.mozilla.org/en-US/kb/Safe%20Mode#w_how-to-start-firefox-in-safe-mode Safe Mode] (picture) start screen. Please note that you may have to [https://support.mozilla.org/en-US/kb/how-do-i-customize-toolbars customize] the personal settings again.

Tab problem was solved by ur advice , But Mozila Crack problem become more than normal

You can also try a [https://support.mozilla.org/en-US/kb/Managing-profiles new profile]. If it's okay, you can later [https://support.mozilla.org/en-US/kb/Recovering%20important%20data%20from%20an%20old%20profile?s=profile&r=1&e=sph&as=s copy the needed personal data] from the old profile. Firefox stores your personal data and settings in another location separate from its [http://kb.mozillazine.org/Installation_directory files/folder]. A new profile would have the default Firefox settings ('''Tools''' ('''Alt''' + '''T''') > [https://support.mozilla.org/en-US/kb/Options%20window '''Options'''], and [http://kb.mozillazine.org/About:config about:config] ), and usually would also be empty of any '''Extensions''' and themes ('''Appearance''') in Tools > Add-ons) and their settings. Also, a new profile would have no previous stored website data/settings etc., ('''Tools''' > [https://support.mozilla.org/en-US/kb/Clear%20Recent%20History '''Clear Recent History''']). [https://support.mozilla.org/en-US/kb/Profiles?s=profile&r=2&e=sph&as=s Profiles Howto] [http://kb.mozillazine.org/Profile_folder_-_Firefox Profile Folder & Files] [http://kb.mozillazine.org/About:config_entries about:config Entries] Before trying a new profile, you can also try a full system scan with two or more different malware scanners. [http://www.nortonfreetools.com/freebies.php Norton] [http://www.kaspersky.com/virusscanner Kaspersky] [http://www.bitdefender.com/scanner/online/free.html Bitdefender] [https://www.f-secure.com/en/web/labs_global/removal/online-scanner F-Secure] [http://us.mcafee.com/root/mfs/default.asp McAfee] [http://housecall.trendmicro.com/ Trend Micro] [http://www.microsoft.com/security/scanner/en-us/default.aspx Microsoft]