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I keep getting a message about a problem with the plug in container for firefox. what does it mean?

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I am getting a pop up box saying that there is a problem with the plug in container for firefox. It keeps saying do I want windows to find a fix for it and close it or do I just want to close the program. What is this plug in container for firefox and why am I constantly getting this message? It has been happening for the past month or two.

I am getting a pop up box saying that there is a problem with the plug in container for firefox. It keeps saying do I want windows to find a fix for it and close it or do I just want to close the program. What is this plug in container for firefox and why am I constantly getting this message? It has been happening for the past month or two.

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It means either you have a faulty/out of date plugin, or your firewall/antivirus is causing problems with Firefox.

Make sure you update all your plugins and disable unwanted ones. https://www.mozilla.org/en-US/plugincheck/ https://support.mozilla.org/en-US/kb/disable-or-remove-add-ons

Also, make sure your firewall/antivirus is not blocking plugincontainer.exe from the Firefox folder in your computer. How you make sure that's not the case will depend on your firewall/antivirus.