Plugin Container For Firefox Stopped Working

How to Resolve: Plugin Container for Firefox has stopped Working

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Around the time when Firefox version 3.6.4 was released, the Plugin Container (executable file) transitioned to the role of Plugin Handler, which is responsible for managing plugins. This was implemented to Firefox in order to reduce crashes caused by plugins.

All of Firefox’s plugins are loaded into the Plugin Container to prevent a crash from occurring. This tutorial’s fixes will also handle the following issues:

The functionality of Plugin Container is disrupted in Firefox when the Full-Screen mode is used.

No longer functioning properly while running Firefox in VMware is the Plugin Container.

Solution 1: Update Flash Player 

Although it’s not easy to use, Shockwave Player (also known as Flash Player) is essential for surfing the web. This is one of the primary factors that contributes to the plugin in question not functioning properly with Firefox.

Check Out This Article as Well: How to Fix the Problem That Your Firefox Connection Is Not Secure
When older versions of Shockwave are used on questionable websites, you run the risk of experiencing issues similar to this one. This is because criminal users can take advantage of security flaws in older versions to damage your computer. Here’s how to update the plugin that comes packaged with your Mozilla browser.

There is no automated method to update plugins using the browser, since you will be sent to this site when you launch Mozilla Firefox, navigate to Tools >> Add-ons >> Plugins, and click the option to Update Now. This is because there is no such thing as an automated method.
Launch the above link in a new tab. On the left side of the screen, you should see your Windows architecture (either 32 bits or 64 bits), the language you want to use, and the browser you want to use.
The player can be downloaded from another web browser or computer (this option is available in the event that Firefox is sluggish): Simply select your operating system and web browser after clicking on the “Need Flash Player for another computer?” link (Firefox).
After that, select the option to Download Now from the menu. Turn off the install offers for McAfee programmes that appear in the middle of the browser window.
Start the installation of Flash Player by opening the file located in your Downloads folder, waiting until the installation files have completely downloaded, and then following the on-screen instructions. After that, you should restart your computer and check to see if the problem still exists.
Note that it is possible that the installation will not go according to plan because of problems with the users. When this happens, you will need to use Adobe’s Uninstaller programme to carry out a clean installation.

To begin the process of downloading the Uninstaller application to your computer, click on the link located above (the Download will start as soon as you click on the link). Download any applications or programmes that make use of Flash Shockwave (instant messengers, browsers, games, etc.).
To uninstall Flash Player, open the uninstaller file that you saved to your Downloads folder, run it, and then follow the instructions that appear on the screen.
After you have completed the uninstallation, you should clean up by going to the directories that are specified below and deleting any files or folders that you find in those directories. To navigate, hit the Windows key plus R to open the Run dialogue box, then copy and paste the following paths into the appropriate fields:
C:\Windows\system32\Macromed\Flash

Solution 2: Broken Xmarks Add-on 

Broken Xmarks Add-on Xmarks is a popular bookmark management software that is integrated into the Mozilla Firefox web browser. The plugin-container will exit with an error message whenever a plugin cannot be loaded successfully. The Xmarks plugin that was formerly available in the Plugin Container for Firefox has been discontinued.

To launch Mozilla Firefox, either double-click the icon that’s located on your desktop or look for it in the Start menu.
Locate the blue Xmarks icon in the top right corner of the window. Simply click on it and go to the Xmarks Settings menu.
If Xmarks isn’t functioning properly, head over to Add-ons and click the Options button there. Add-Ons can be accessed by selecting the menu button located in the upper right hand corner of the browser. In addition, you can type “about:addons” into the address bar of the Mozilla browser.
Find the Xmarks add-on, and then pick Options from the menu that appears.
In the Xmarks Settings window, pick the Advanced tab, and then select Repair from the menu that appears. You’ll need to follow the instructions that appear on the screen and then restart your browser. Verify that the problem has been fixed.
Update to the latest version of Firefox Updates are readily accessible to address issues and fix bugs, as is their intended purpose. You should give this a shot because a number of people who reported the issue online stated that resolving it was as simple as updating their version of Firefox.

Solution 3: Update Firefox

Even though Firefox’s automatic update feature is generally set to run in the background, you have the option to disable it and perform the update manually instead.

After that, either double-click the icon that’s been placed on your desktop or look for it in the Start menu and pick the first result.
To acquire additional information regarding Firefox, select the “Menu” option located in the upper right hand corner of the window representing the browser.
When you open the About box in Mozilla Firefox, the browser checks for available updates and downloads them automatically if there are any. After the download is finished, select the option to Restart Firefox in order to apply the update.
Determine whether the problem persists after you restart Firefox and see if it does.
See Also: Re-Register IE files
Unprotected Flash Mode in Adobe Flash is the fourth possible solution.
Users operating 32-bit PCs are the target audience for this solution, as 64-bit browsers do not have access to this particular feature. Protected mode is designed to keep you secure from intruders and harmful attacks, but even Mozilla admits that it may cause frequent crashes and errors such as this one. The mode’s primary purpose is to keep you safe from intruders and harmful attacks. Because of this, you can turn it off and check to see if that makes a difference.

Solution 4: Unprotected Flash Mode in Adobe Flash

Users of 64-bit versions of Windows have access to a method that is marginally more challenging but not too complicated.
To launch Mozilla Firefox, either double-click the icon that’s located on your desktop or look for it in the Start menu.
Add-Ons can be accessed by selecting the menu button located in the upper right hand corner of the browser.
To view the comprehensive list of plugins that have been installed, navigate to the right pane of the screen and select the option labelled Plugins. Select “Disable Adobe Flash protected mode” from the drop-down menu that appears after clicking Options next to Shockwave Flash.
You can try restarting your browser to see if it helps fix the problem.
Users using 64-bit versions of Windows:
1. Make an attempt to navigate to this location by selecting My Computer or This PC in File Explorer:

C:\Windows\SysWOW64\Macromed\Flash \s2. It’s possible that your operating system is set to hide files, which would explain why you can’t see any of the directories in the process.

3. In the File Explorer’s “View” tab, in the section labelled “Show/hide,” select the checkbox for “Hidden objects.” After this change, File Explorer will display hidden files unless you manually change their visibility again.

4. Look for the file named mms.cfg. You can make changes to it by right-clicking on it. To be able to do so, you will need administrative rights. At the prompt, select New >> Text File from the Flash folder’s drop-down menu. You should select All types and then save the file as “mms.cfg.”

5. In any event, you need change the mms.cfg file and append the following line at the very end of it:

ProtectedMode=0
6. Save your work and close Notepad. It is necessary to close Firefox and wait a few minutes for this update to take effect after the Flash plugin has been deactivated.

Solution 5: Remove Hardware Acceleration

Option 5: Disable Any Acceleration Hardware You May Have
Hardware acceleration has been shown to occasionally improve browser performance; however, it has also been shown to create a number of issues and problems, which users might have easily avoided by simply removing the feature. It’s an easy change to make in Firefox, but you should also make the adjustment in the settings for Flash.

In Firefox, to access the browser’s options, click the menu button located in the upper right hand corner of the window. Proceed to the General section.
Scrolling down to the Performance section and unchecking the box will get you to the “Use hardware acceleration when possible” entry. “Use hardware acceleration when possible” You should now close the menu and uncheck the box that was next to it. Try restarting your browser to see if it helps fix the problem.
Flash: A Flash animation located on their official Help page can immediately disable it for you. Please scroll down until you find the tree animation, then right-click it and choose Settings from the menu that appears.
Before clicking the close button and restarting your browser, remain in the options dialogue window that should have opened and clear the box next to the “Enable hardware acceleration” option in the first Display tab of the settings panel.

User Questions

What does “Plugin Container” for Firefox mean?
Within the plugin-container, plugins are executed in a manner that is distinct from the standard browser code. By a wide margin, the most widely used format is Flash. Because Flash is used for communication on some websites, those websites could ask for permission to access your microphone.

What do I need to do to get Firefox working again?
It is recommended that hardware acceleration be disabled.
The smooth scrolling feature has been turned off.
It is recommended that extensions such as AdBlocker be disabled.
Delete all of the cookies that are stored on your computer.
It is recommended that proxy settings be deleted.
Establish a baseline for the amount of protection.
It is recommended that Firefox be reinstalled.
It is recommended that Windows 10 be reinstalled after being cleaned up.
Check out this article as well: How to Fix the “Firefox is not responding” Error in Windows 10
How can I stop the plugin-container from functioning?
Launch Firefox and type about:config into the URL bar to configure the browser. I solemnly swear that I will be careful.
Search for “ipc” in the box labelled “Filter” now.
As can be seen in the example up top, you need to do a double click on each of the five items individually in order to make their values equal to “false.” dom.ipc.plugins.enabled.
Launch a new session with the Mozilla Firefox web browser. Our conversation comes to an end here.
What factors contribute to Firefox’s unexpected inability to function normally?
It is possible that corrupted data in your settings are the cause of Firefox’s current inability to launch while it was previously functional. Because your preferences are not removed from Firefox when you uninstall the programme, reinstalling it will not resolve the issue. To identify whether or not this is the source of the issue, create a new profile using the Profile Manager.

Where have all the Firefox containers disappeared to?
Containers can now be downloaded as an extension for Firefox, making the feature accessible to all users of that browser. In addition to the benefits they provide for users’ privacy, Containers make it possible for users to simultaneously log in to several accounts without having to switch between multiple browsers or continually sign in and out of the same account.