Wrong outrage clickbait. It has nothing to do with AI features (edit: in the "LLM sense") but comes from the new vector search in the address bar. It was first rolled out to a tiny subset of users with an English Firefox in Great Britian and Canada, x64 and at least 8 GB RAM in Fiefox 141.0.2. This issue has been fixed in Firefox 143. The original source is NeoWin based on a dubious report from Reddit: https://www.neowin.net/news/mozilla-under-fire-for-firefox-a... They now corrected their article:

> Update (August 13, 2025, 03:57 GMT): While the community correctly identified a performance issue, their attribution of the cause was mistaken. A Firefox spokesperson provided the following statement, clarifying the situation:

> We're working to improve client-side matching in the address bar, which makes it possible for users to recall previously visited websites without remembering exact keywords in the URL or page title.

> We unintentionally shipped a performance bug during the phased rollout of this feature, which processes information privately on-device. After receiving reports of issues that hadn't come up in our testing, we reversed the rollout, and the performance issues should be resolved.

The article from The Register cites this too but still comes to the wrong conclusion it's for naming tab groups. The author has no idea what he is writing about.