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Firefox doesn't want to unload closed and sleeping processes on Lubuntu 18.04. The memory consumption grows from 800mbs up to 3gbs.

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Yeah I have that weird unloaded processes problem on Lubuntu linux 18.04. At the fresh start when I have somewhat only 20-30 tabs opened they take up somewhat 1.1gb of RAM which is perfectly normal. But as I do some more surfing and research on the web memory consumption just keeps growing and with the same amount of tabs it could take like 2gbs, 3gbs RAM or even more than that.

Then I have to manually clean up some processes just like WEBCONTENT process. I have no idea why OS doesn't do it on its own but the same problems goes almost for any app (skype, mail clients etc) I use on my Lubuntu 18.04

Yeah, sure it does look more like an OS problem for me but that doesn't make things any easier so I have to reboot my pc every 3-4 hours of work which is totally inconvenient.

Yeah I have that weird unloaded processes problem on Lubuntu linux 18.04. At the fresh start when I have somewhat only 20-30 tabs opened they take up somewhat 1.1gb of RAM which is perfectly normal. But as I do some more surfing and research on the web memory consumption just keeps growing and with the same amount of tabs it could take like 2gbs, 3gbs RAM or even more than that. Then I have to manually clean up some processes just like WEBCONTENT process. I have no idea why OS doesn't do it on its own but the same problems goes almost for any app (skype, mail clients etc) I use on my Lubuntu 18.04 Yeah, sure it does look more like an OS problem for me but that doesn't make things any easier so I have to reboot my pc every 3-4 hours of work which is totally inconvenient.
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Btw manual unloading of some processes in sysmonitor app does not solve the problem. This way you can get another 200-300mbs of free RAM in the very best case but it's a truly drop in a bucket with a crazy 3-4gbs constant growing RAM consumption.

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Hi, have you looked under Privacy & Security and placed a check mark in the box for the setting to Prevent Accessibility Services from accessing your browser. if it is there ?

Have you turned down from default the multiprocessor under Permissions to see how it runs using less that default 4  ?

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Pkshadow said

Hi, have you looked under Privacy & Security and placed a check mark in the box for the setting to Prevent Accessibility Services from accessing your browser. if it is there ? Have you turned down from default the multiprocessor under Permissions to see how it runs using less that default 4  ?

Thanx for your fast reply Pkshadow! In a fact I have some 60.0.2 64 bit version FF and I couldn't find any "Prevent Accessibility Services" in there (I'm sending you a screenshot with it).

And actually I hadn't tried that thing with less than 4 default multiprocessing. Should I got with 1 or 2 of them? How would I assess the RAM usage by FF in this case? Any software tools you could recommend me? Tnx for your patience!