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Unwanted tabs open on Firefox start-up

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A friend gets the same additional tabs to his home page every time he starts Firefox. I have re-installed Firefox for him, I have checked that there are not multiple home pages set, and I have followed the instructions for removing sessionstore.js. However, although I have successfully located the Firefox profiles and openned *****.default, the file sessionstore.js does not appear to be there. Show hidden files, system files etc are all checked in the explorer options. (I have tried this on my own machine and have successfully located the file). I should be grateful for any suggestions - it is driving me mad! Michael

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cor-el
  • Top 10 Contributor
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10779 solutions 97010 answers

See this article for some suggestions: Firefox says it's just updated every time it starts - how to fix

See also http://kb.mozillazine.org/Preferences_not_saved and How to fix preferences that won't save

How to set the home page: Firefox supports multiple home pages separated by '|' symbols.

Question owner

Those tabs are advertising!

cor-el
  • Top 10 Contributor
  • Moderator
10779 solutions 97010 answers

In that case do a malware check with a few malware scan programs.

You need to use all programs because each detects different malware. Make sure that you update each program to get the latest version of the database.

http://www.malwarebytes.org/mbam.php - Malwarebytes' Anti-Malware http://www.superantispyware.com/ - SuperAntispyware http://www.safer-networking.org/en/index.html - Spybot Search & Destroy http://www.lavasoft.com/products/ad_aware_free.php - Ad-Aware Free http://www.microsoft.com/windows/products/winfamily/defender/default.mspx - Windows Defender: Home Page .......... See also "Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked