Mozilla's latest browser update brings a feature that tab hoarders might actually appreciate. Firefox 141 has introduced AI tab grouping, an upgrade to the manual tab grouping functionality that debuted in version 137. The new system automatically sorts tabs based on content similarity and even generates group names. Pretty neat, right? Well, sort of.

Tab hoarders rejoice! Firefox 141's AI tab grouping sorts your digital chaos automatically—if your CPU can handle it.

The AI works entirely on your device. No data gets shipped off to the cloud. No creepy tracking. Mozilla's making a big deal about this privacy-first approach, and honestly, they should. In an age where every tech company wants to vacuum up your data, Firefox's commitment to on-device AI processing stands out. While typical AI cloud solutions can cost thousands annually, Firefox offers this feature at no extra charge to users.

Users can still create groups manually by dragging tabs together or through the right-click menu. Once a group exists, the AI steps in to suggest additional tabs that might belong together. The system also conveniently suggests other tabs that match the same theme for better organization. Groups collapse to save space and expand when needed. Convenient, if it works properly.

But there's a catch. A big one.

After rollout, users started noticing something odd: their CPUs were working overtime. The culprit? A mysterious "Inference" process driving the AI functionality. Some reported CPU usage spiking to a wild 130%. That's not a typo. Your laptop fans spinning up just to organize tabs isn't exactly a selling point.

Worse still, trying to kill this resource-hungry process crashes the browser. The AI engine is deeply integrated into Firefox's operations, making it impossible to shut down without breaking everything else.

Mozilla faces a dilemma. They've created a privacy-respecting AI feature that doesn't rely on sending your data to external servers, but at what cost? Battery life and system performance take a hit. User st8ic88 reported their laptop was rapidly depleting battery while running the browser with this feature enabled.

The feature remains experimental and is rolling out gradually. Users can disable it in settings under the Tabs section if they prefer their CPU not to melt. Let's hope Mozilla optimizes this resource hog before the full release. Great idea, shaky execution.