How to prevent flash player from updating
If Flash is installed and enabled, the about:plugins list will include an entry similar to the following: Shockwave Flash In Flash versions 11.2 and above, the file name includes the plugin version.
To see if the Flash plugin is working and what version is being used, visit one of these pages: If Flash is not installed, this may trigger the Plug-in Finder Service, which you can use to download and install the Flash plugin on Windows (see below).Note that recent installers are only helper applications that download the actual application from the Adobe site, thus they are smaller in size than previous downloads.You can download the full installer for your operating system, without any bundled software, from the Adobe Flash Player Distribution page.If Adobe's test page does not show that Flash is working even though you have installed the latest version, your Flash plugin may be disabled in the Add-ons Manager.To make sure that Flash is enabled, There are three different types of Flash Players: an Active X version for Internet Explorer, a Chrome version built into the browser and a plugin version for Firefox and some other browsers.Note: On Windows, the Flash plugin is detected via plugin scanning.
If you have installed the Flash plugin but it does not appear in the Add-ons Manager, open about:config and make sure that the preference has not been set to "false" (if it has, right-click on it and select Reset to set it back to "true").
Click on the "Activate Adobe Flash" message to allow the Flash content to load (if it doesn't, reload the page and try again).
For more information, see Why do I have to click to activate plugins? The Flash plugin is set to "Ask to Activate" in the Add-ons manager by default.
For more information, see Why do I have to click to activate plugins?
Mozilla applications are regularly updated for security and stability; however, Mozilla does not provide updates for plug-ins.
Starting with Flash Player 11.2 on Windows, an option for silent, automatic updates is selected by default when you install Flash.