Uninstall the '''''Ask Toolbar'''''. It can cause that problem. *http://support.mozilla.com/en-US/kb/Uninstalling+add-ons *http://support.mozilla.com/en-US/kb/Cannot%20uninstall%20an%20add-on *http://kb.mozillazine.org/Uninstalling_toolbars If that does not solve your problem: *See --> [http://support.mozilla.com/en-US/kb/Troubleshooting+extensions+and+themes Troubleshooting extensions and themes] *See --> [http://support.mozilla.com/en-US/kb/Troubleshooting+plugins Troubleshooting plugins] *See --> [http://support.mozilla.com/en-US/kb/Basic+Troubleshooting Basic Troubleshooting] '''If this reply solves your problem, please click "Solved It" next to this reply when <u>signed-in</u> to the forum.''' ------------------------- Not related to your question, but... You may need to update some plug-ins. Check your plug-ins and update as necessary: *Plug-in check --> http://www.mozilla.org/en-US/plugincheck/ *'''''Adobe Shockwave for Director Netscape plug-in''''': [https://support.mozilla.com/en-US/kb/Using%20the%20Shockwave%20plugin%20with%20Firefox#w_installing-shockwave Installing ('''''or Updating''''') the Shockwave plugin with Firefox] *'''''Adobe PDF Plug-In For Firefox and Netscape''''': [https://support.mozilla.com/en-US/kb/Using%20the%20Adobe%20Reader%20plugin%20with%20Firefox#w_installing-and-updating-adobe-reader Installing/Updating Adobe Reader in Firefox] *'''''Shockwave Flash''''' (Adobe Flash or Flash): [https://support.mozilla.com/en-US/kb/Managing%20the%20Flash%20plugin#w_updating-flash Updating Flash in Firefox] *'''''Next Generation Java Plug-in for Mozilla browsers''''': [https://support.mozilla.com/en-US/kb/Using%20the%20Java%20plugin%20with%20Firefox#w_installing-or-updating-java Installing or Updating Java in Firefox]

''CTRL+T won't open any new tabs...'' Get rid of the "Ask Toolbar" extension, if you have it. It is crapware that gets installed, if you're not very careful, along with something you wanted to install. * http://kb.mozillazine.org/Problematic_extensions#Ask.com_Toolbar

I don't have an "Ask Toolbar".

It appears that you do from your User Agent included with your question. It could have been installed when updating some free software from the internet if you did not un-check the option to install it. *Your User Agent: ''Mozilla/5.0 (Windows; U; Windows NT 6.0; nl; rv:1.9.2.24) Gecko/20111103 '''<u>AskTb</u>'''MPC2/3.12.2.16749 Firefox/3.6.24 ( .NET CLR 3.5.30729; .NET4.0C)'' Please read and follow these instructions: Uninstall the '''''Ask Toolbar'''''. It can cause that problem. *http://support.mozilla.com/en-US/kb/Uninstalling+add-ons *http://support.mozilla.com/en-US/kb/Cannot%20uninstall%20an%20add-on *http://kb.mozillazine.org/Uninstalling_toolbars If that does not work *See --> [http://support.mozilla.com/en-US/kb/Troubleshooting+extensions+and+themes Troubleshooting extensions and themes] *See --> [http://support.mozilla.com/en-US/kb/Troubleshooting+plugins Troubleshooting plugins] *See --> [http://support.mozilla.com/en-US/kb/Basic+Troubleshooting Basic Troubleshooting] '''If this reply solves your problem, please click "Solved It" next to this reply when <u>signed-in</u> to the forum.'''