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Firefox@fedia.io · 10 days ago

Firefox users report high CPU and memory usage in the latest release, caused by browser's on-device AI inferencing for its 'smart tab grouping' feature.

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Firefox users report high CPU and memory usage in the latest release, caused by browser's on-device AI inferencing for its 'smart tab grouping' feature.

omg! ubuntu@floss.social to

Firefox@fedia.io · 10 days ago

Firefox users report high CPU and memory usage in the latest release, caused by browser’s on-device AI inferencing for its ‘smart tab grouping’ feature.

https://www.omgubuntu.co.uk/2025/08/firefox-high-cpu-usage-inference-disable

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A Mouse@midwest.social
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10 days ago
There’s an option labeled Use AI to suggest tabs and a name for tab groups.

On 141 it’s listed in Settings under the General => Tabs section.

It changes browser.tabs.groups.smart.userEnabled.

Looking at it further, either option will disable it. Here’s the code that checks both values, https://github.com/mozilla-firefox/firefox/blob/FIREFOX-ANDROID_141_0_3_RELEASE/browser/components/tabbrowser/content/tabgroup-menu.js#L481

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