plugin-container.exe has encountered a problem (high CPU)

Do you get the Firefox error plugin-container.exe has encountered a problem frequently? If so, you might want to read this guide to fix it and find out why your plugin-container.exe crashes.

Plugin-container.exe has encountered a problem

Run Firefox in Safe Mode

If you want to find out if a plugin is causing the problem, you can run Firefox in Safe mode, which will disable all extensions, plugins, themes and anything else. That’s an easy way to check if there is an problem with any of the installed programs that might be causing the plugin-container.exe to crash.

1. Step Hold Windows key + R
2. Step Enter “C:\Program Files\Mozilla Firefox\firefox.exe” -safe-mode

Or if you are on Windows 7 64-bit enter:
“C:\Program Files (x86)\Mozilla Firefox\firefox.exe” -safe-mode

How To Disable Firefox Plugins

Often, the plugin-container.exe crashes due to a corrupt plugin. The plugin-container.exe contains all of your plugins. If one of your plugins hangs the plugin-container.exe might freeze and therefore Firefox can’t continue to work.

1. Step Click on Tools, Addons:

Firefox Addons

2. Step Go to the tab Extensions and disable all plugins:

Disable Firefox Plugins

3. Step Enable the plugins one by one and browse a couple sites to see if there is a specific plugin that triggers the error “plugin-container.exe has encountered a problem”.

Clear History, Recent Downloads, Temporary Internet Files

If you have a lot of temporary internet files it can possibly cause problems. Some people reported that they stopped getting the “plugin-container.exe has encountered a problem” error after cleaning their temporary files with tools like CCleaner.

Clean your hard drive in Windows 7

Disable Java

Some websites use Java. Java is known for causing a lot of problems and I’m pretty tired of it. You should disable Java and only enable it if you need it for a specific website. Java is also often responsible for high CPU usage and is causing more problems than people can handle.

Learn how to disable Java in Firefox (3.6.x)

Other tips

- Re-install Firefox
- Install latest Firefox
- Temporarily disable your Firewall and Anti-Virus

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Oliver is the founder and lead editor of this site. He is interested in finding new ways to break Windows, find common errors and help others to fix them. Aside from that, he loves to fully customize systems with Rainmeter and Dreamscene, find out more about ancient civilizations like the Chachapoya, sharpen his digital photography skills and create software with a small group of selected developers. If you would like to connect with him to discuss anything, send him a mail!

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One Response to plugin-container.exe has encountered a problem (high CPU)

  1. Orange Community Approved Comment:
    sanuly said:

    ive noticed this appears mainly when i run some flash related thing, like you tube, and am downloading something at the same time. Especially if I’m downloading a video from youtube at the same time, FF tends to cop out.
    For eg:- this site:

    When I play the audio file and download the mp3 , voila! plugin container exe error!

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