Threat Descriptons



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Trojan:JS/BrowseFox is a web browser extension that displays pop-up third-party advertising content on viewed web pages. It may also inject advertising content into search results and silently modify the web browser's settings.


Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.

A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:

  • Check for the latest database updates

    First check if your F-Secure security program is using the latest updates, then try scanning the file again.

  • Submit a sample

    After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.

    Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.

  • Exclude a file from further scanning

    If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.

    Note: You need administrative rights to change the settings.

Technical Details

BrowseFox is a web browser add-on or extension that is available for multiple browsers, including Firefox, Internet Explorer and Chrome. It may be installed as standalone software, or bundled together with another program.

On installation, the extension can silently modify various web browser settings, such as the home page and search settings. During a web browsing session, BrowseFox will display pop-up advertising content on the viewed web pages. It can also inject advertising content into search results returned by search engines.

More Support


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