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Plugins Container after 47 update causing MAJOR slowdowns.

  • 2 replies
  • 3 have this problem
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  • Last reply by SSXVegeta

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Hey, for a few days now, (perhaps even before I updated to 47) whenever I open firefox, I was noticing some major slow down, and I dont mean just in browsing through firefox, I mean in the way that slowed down ALL operations of my machine.

A quick look showed me that the Firefox Plugin Container process was using up a lot of cpu and ram. (It also disappears from the list randomly, perhaps crashing?)

So I figured perhaps one of my plugins was no longer getting along with the browser, so I disabled all of them using the safe mode feature. As I watched the task manager I see the plugin container come back and do the exact same thing, eats up cpu and ram... Any advice/Insight on whats going on?

Hey, for a few days now, (perhaps even before I updated to 47) whenever I open firefox, I was noticing some major slow down, and I dont mean just in browsing through firefox, I mean in the way that slowed down ALL operations of my machine. A quick look showed me that the Firefox Plugin Container process was using up a lot of cpu and ram. (It also disappears from the list randomly, perhaps crashing?) So I figured perhaps one of my plugins was no longer getting along with the browser, so I disabled all of them using the safe mode feature. As I watched the task manager I see the plugin container come back and do the exact same thing, eats up cpu and ram... Any advice/Insight on whats going on?

All Replies (2)

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Plugins are not affected by Safe Mode.

Safe Mode is a troubleshooting mode that temporarily turns off hardware acceleration, resets some settings, and disables add-ons (extensions and themes). If the problem goes away, that tells us one thing. If it does not, that tells us something else.


Type about:addons<enter> in the address bar to open the Add-ons Manager. Hot key; <Control>(Mac=<Command>) <Shift> A)

On the left side of the page, select Plugins. Set all of then to Never.

Restart Firefox. Any changes?

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Oh, for some reason my brain was assuming that both Plugins and Addons would be included in the 'plugins container' and that it wouldn't appear during a safe mode session...huh.. my bad!

I woke up this morning and it seems to be running decently for the moment... of course as soon as I give up and ask about it... if it starts again later I will do as suggested.

Modified by SSXVegeta