When you visit a web page in the Firefox browser that requires a specific plugin to be installed to display all or some of its contents, and you do not have it installed, you see the message "Additional plugins are required to display all the media on this page" on the page with an option to install the missing plugins or to close the message.
The notification appears at the very top of the web site pushing the contents of the site below it automatically.
Maybe you are visiting a website regularly that makes use of a plugin that you do not want to install.
Since the message is displayed whenever you load a page that requires a plugin that is not installed in Firefox, you may see that message often in the browser.
You can read the remaining contents just fine, but the missing plugins notification message is just annoying the hell out of you.
There are actually two options to get rid of the message in Firefox. The first is to install the plugin, and disable it.
I agree that it does not make that much sense to do that, unless you enable it sporadically in the web browser. Firefox will not display the additional plugins are required notification if the required plugin is installed but disabled.
If you prefer not to install the plugin you can make a modification to Firefox's configuration to disable the message completely. This affects all missing plugins then.
To do that enter about:config in the Firefox address bar. First time users need to click on the I’ll be careful, I promise! button to proceed. You see a list of parameters and a search form at the top.
Copy and paste the parameter plugins.hide_infobar_for_missing_plugin into the search form. You should only see one result now.
Notice that the value is set to false which means that notifications are shown in the browser if a plugin is not installed. Double-click the entry to set it to true. This will hide all missing plugin notifications in Firefox.
You can alternatively right-click the parameter and select Toggle to change the value from False to True.
You can revert the change at anytime by repeating all steps outlined above.
All missing plugin notifications are from that moment on no longer displayed in the Firefox web browser. (via Groovypost)Advertisement
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