this post was submitted on 07 Jan 2026
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Firefox

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Plugin to automatically kill tabs that are stuck at 100% CPU usage (lemmy.ca)
submitted 3 days ago by phoenixz@lemmy.ca to c/firefox@lemmy.ml
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So I regularly see issues in Firefox where pages from certain websites (Hello amazon.ca!) shoot to 100% CPU utilization and just never stop.

I'm wondering, is there a plugin that could periodically check the FF process list and identify tabs that are misbehaving like this (or in other ways, extreme memory consumption, perhaps?) and perform configurable actions like "Reload page (GET only of course) on tab" or "Kill tab" ?

It would be helpful because I see this issue on a daily basis, regularly to the point where these tabs are causing problems.

I already have "Auto tab discard" that discards unused tabs, but I'd like this as an extra feature, or a separate plugin.

Anyone who knows what could be useful?

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[–] msdropbear@friendica.opensocial.space 3 points 3 days ago (1 children)

@phoenixz about:processes

[–] l3ored@piefed.social 1 points 3 days ago (1 children)

Can you close tabs from there or just put them to sleep?

[–] msdropbear@friendica.opensocial.space 1 points 3 days ago

@l3ored you can close them with it. i find it useful for this purpose, though luckily i only rarely have the need. when you hover over any item listed in the table, at the rhs end a cross appears -- click it to end that process, = close the relevant tab. you can sort the table columns by alphabet, memory, or cpu.