This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Plugin conatainer still eating ram without any plugins

  • 6 replies
  • 34 have this problem
  • 4 views
  • Last reply by philipp

more options

All plugins set to Never Activate, no addons installed, default theme. Plugin container still starting and constantly eating ram. Now it consumes 940 mb and keep going up. If I kill this process all open tabs crashes and afeter 30 sec plugin container restarting and continue rising mem usage from 100mb. Also it reads and writes disk at around 0.1Mb/s rate

All plugins set to Never Activate, no addons installed, default theme. Plugin container still starting and constantly eating ram. Now it consumes 940 mb and keep going up. If I kill this process all open tabs crashes and afeter 30 sec plugin container restarting and continue rising mem usage from 100mb. Also it reads and writes disk at around 0.1Mb/s rate

Modified by ownageismagic

Chosen solution

hi, when you are on pre-release you are probably using multiprocess firefox. all web content will run in the plugin-container.exe process in this case. https://wiki.mozilla.org/Electrolysis

Read this answer in context 👍 4

All Replies (6)

more options

Let’s do a full clean re-install; Download Firefox For All languages And Systems {web link} Save the file. Then Close Firefox.

Using your file browser, open the Programs Folder on your computer.

Windows: C:\Program Files C:\Program Files (x86) Mac: Open the "Applications" folder.
https://support.mozilla.org/en-US/kb/how-download-and-install-firefox-mac Linux: Check your user manual.

Do Not remove the profiles folder.

Look for, and rename any Mozilla or Firefox program folders by adding .old to them. Do not rename the Mozilla Thunderbird folder.

After rebooting the computer, run a registry scanner. Then run the installer. If all goes well, remove the OLD folders when you are done.


If there is a problem, start your Computer in safe mode and try again.

Starting The Computer In Safe Mode;
Free Online Encyclopedia

more options

FredMcD It doesn't help

more options

Chosen Solution

hi, when you are on pre-release you are probably using multiprocess firefox. all web content will run in the plugin-container.exe process in this case. https://wiki.mozilla.org/Electrolysis

more options

philipp said

hi, when you are on pre-release you are probably using multiprocess firefox. all web content will run in the plugin-container.exe process in this case. https://wiki.mozilla.org/Electrolysis

Thank you for the answer. But why it leaking so bad? Calling GC from about:memory stips around 2 mb only. Killing process and reloading all tabs releases 300-500 mb

Modified by ownageismagic

more options

that probably depends on the kinds of websites you are using. e10s is generally increasing the memory-footprint though: http://www.erahm.org/2016/02/11/memory-usage-of-firefox-with-e10s-enabled/