Pin Me

What is Mozilla Plugin Check?

written by: Donna Buenaventura•edited by: Bill Bunter•updated: 8/17/2010

Web browsers can have different plug-ins allowing us to view contents or use a feature of another application in a browser. Mozilla has developed a project called Plugin Check. Find out what it is for and why you have to bookmark it.

  • slide 1 of 3


    Software plug-in is developed by software developers that interact using your browser or e-mail programs. Most plug-ins adds functionality for a browser (depending on what you need or require). An example is when viewing online content like games or videos using Silverlight, Shockwave/Flash Player plug-in or by taking advantage of additional commands or features by another software or service using a browser or e-mail programs such as login assistant for chat application or a PDF file viewer.

  • slide 2 of 3

    Plugin Security Risks and Mozilla Plugin Check

    Mozilla Plugin Check No matter what operating system we will use, there is a security risk if you are using third-party applications, add-ons or plug-ins. The risk: Exploits targeting vulnerabilities in any application or operating system. Plug-ins for browser, e-mail programs and other applications is often known to have vulnerabilities. Some vulnerability, if targeted can cause malware infection, personal or financial information loss and many others. There is a need to patch or update the software we’ve installed or allowed installation (some were installed without our consent so look at the list of unwanted add-on here so the next time you will install a software, you will know what awaits you when hit that ‘next’, ‘yes’ or ‘install’ button) including those little plug-ins!

    Most security researchers and software developers like Secunia (see Secunia World Map on Insecure Applications to date), SecurityFocus, Microsoft, Apple and Mozilla is aware of the above risk. To help end-users in protecting their computers against vulnerabilities or exploits (note that not all antivirus can prevent or detect exploits), Mozilla launched online Plugin Check website.

    The Mozilla Plugin Check website was officially launched last month so your old, vulnerable and buggy plug-ins is detected as “safe (up-to-date)" or “vulnerable (outdated)".

    Different end-users have different installed plug-ins. Some might have few or while others has more. Example is the screenshots below where figure A shows plugins for Adobe Acrobat, Java, Mozilla, Shockwave Flash, Windows Presentation Foundation and Yahoo Application State. Figure B have Silverlight plugin.

    When you visit the Plugin Check website, it will display the version and vulnerability status of the plugins. If you find “Unable to Detect Plugin Version" in the status in the plugin check website, it could mean that:

    1. The Mozilla Plugin Check website need to refresh their detection.
    2. You have to re-initialize the installed plug-ins by deleting pluginreg.dat file in your Firefox profile folder.
    3. The developer or vendor of the plug-in has not participated! Mozilla is asking their help by entering the version of their plugin into the name or description so Mozilla’s plugin detection website will be accurate.

    To prevent infection or any security risks posed by or targeting the known and unknown vulnerabilities, bookmark Mozilla Plugin Check now and visit it regularly. Other service or applications that will help you in keeping your software up-to-date: Secunia Personal Software Inspector or the Online Software Inspector (OSI), CNET TechTracker, Update Checker, Shavlik Patch Google Gadget, Microsoft Baseline Security Analyzer and Belarc Advisor.

    Note that Mozilla is planning to integrate the neat Plugin check with the upcoming Firefox browser v3.6 and by adding support of their plugin check website for other browsers. Help reduce the 10 million insecure plugins by visiting Mozilla Plugin Check today!

  • slide 3 of 3


    Figure AFigure BPlugin Check website

Additional Info