F-Secure and Firefox >13 = impaired download speed

F-Secure Experts,


Wondering if others have experienced this problem and if so, what is the solution?? When F-Secure is activated, download speed in Firefox is clocked at ~0.70 Mbps but when I unload F-S, the speed is ~3 Mbps (my rated DSL speed). Chrome, IE, and Safari all are unaffected. This happened in FF 13, have upgraded to FF 14 w/o difference. Running Win 7 x64 and x86 Pro, F-S is my ISP's AV so assume it's up to date.




  • jackma
    jackma Posts: 32 Contributor

    this might be related to the Browsing Protection plugin in your Firefox, since other browsers are not affected? Try disabling the browser plugin and report back if that betters your traffic speed. Also, your IE might have the plugin installed, but is unaffected as you report. Would be good to know.
  • Jayson
    Jayson Posts: 490 F-Secure Product Expert

    Hi pung09,


    I have moved this post to Protection/Safe board.



    Best Regards,

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