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Massive CPU Usage Suddenly on Nightly #1388

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colemickens opened this issue Dec 11, 2023 · 4 comments
Closed

Massive CPU Usage Suddenly on Nightly #1388

colemickens opened this issue Dec 11, 2023 · 4 comments

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@colemickens
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Steps to reproduce

Hi, I don't know if this is due to a recent change in Nightly, but I noticed that Firefox was eating a ton of CPU and Firefox's Task Manager indicated that that was due to a WebExtension.

I pretty quickly narrowed it down to SideBery.

This is with Sidebery disabled.

screenshot-1702309774

This is immediately after re-enabling it.
screenshot-1702309788

and it stay this high. In my non-work profile browser, I have considerably more tabs, and the problem is worse. I'm sitting at huge idle CPU usage, with literally every tab unloaded.

I'm not sure how else to help investigate, unfortunately.

I can't share logs from this session as it's my work browser. Later, i can repro in my other session and provide that log.

Expected behavior

Actual behavior

Debug info

Addon data
To get addon data: 
- Go to the Sidebery settings page - section "Help"
- Click on the "Debug info" button
- Copy and paste here inside this codeblock, replacing this text.
Note: all URLs, titles and other personal info are skipped.
Logs
To get logs: 
- Open DevTools (open this url in new tab: about:devtools-toolbox?id=%7B3c078156-979c-498b-8990-85f7987dd929%7D&type=extension).
- Navigate to "console" tab.
- Click on the trash bin icon (at the top-left) to clear console.
- Then try to reproduce the issue.
- If messages appear, copy and paste them here inside this codeblock, replacing this text.
@ongots
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ongots commented Dec 22, 2023

@mbnuqw , there is an important problem here, on Firefox 122-123 Sidebery constantly loads processor

@serdarth
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serdarth commented Dec 23, 2023

I've found revoking History permission in Sidebery settings reduces CPU utilization back to normal levels on Firefox 122 beta X and onwards. It apparently also disables History panel for users that rely on this feature. So keep it in mind.

@colemickens
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@serdarth what made you think to try this? it does seem to help significantly for me as well.

@serdarth
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@colemickens good ol' trial and error actually. I thought it had to be one or a combination of the settings after creating a fresh Firefox profile and not reproducing the same behaviour on said profile with default sidebery configuration.

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