This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

new tab suddenly opens at some other web site

  • 2 replies
  • 2 have this problem
  • 3 views
  • Last reply by byubob

more options

A new tab suddenly opens. The address on the tab reads "redirected to something or another" before the page loads. Windows was recently showing a message that Firefox was "blocking something or another" and I okayed to stop blocking. Since then....mystery sites. Thanks, Bob

A new tab suddenly opens. The address on the tab reads "redirected to something or another" before the page loads. Windows was recently showing a message that Firefox was "blocking something or another" and I okayed to stop blocking. Since then....mystery sites. Thanks, Bob

Chosen solution

First, you are running an extremely out of Date version of Firefox, please update to Firefox 11 to get all the most recent security fixes.


Download and Install MalwareBytes Anti-Malware, run a full Scan. http://www.malwarebytes.org/

Download and Run TDSSKiller http://support.kaspersky.com/faq/?qid=208283363

Download and Install Microsoft Security Essentials http://windows.microsoft.com/en-US/windows/products/security-essentials (not an official endorsement, but I personally recommend MSE as an awesome permanent anti-virus)

Double check for all Windows Updates.

Then, Start Firefox up in Safe Mode to see if it is a faulty extension causing the problem.

Read this answer in context 👍 0

All Replies (2)

more options

Chosen Solution

First, you are running an extremely out of Date version of Firefox, please update to Firefox 11 to get all the most recent security fixes.


Download and Install MalwareBytes Anti-Malware, run a full Scan. http://www.malwarebytes.org/

Download and Run TDSSKiller http://support.kaspersky.com/faq/?qid=208283363

Download and Install Microsoft Security Essentials http://windows.microsoft.com/en-US/windows/products/security-essentials (not an official endorsement, but I personally recommend MSE as an awesome permanent anti-virus)

Double check for all Windows Updates.

Then, Start Firefox up in Safe Mode to see if it is a faulty extension causing the problem.

more options

Ran everything you suggested, seems to have worked. Thanks, for your help.