In-Browser Agents for Search Assistance

Fuente: arXiv
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Main Authors: Zerhoudi, Saber, Granitzer, Michael
Format: Preprint
Published: 2026
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author Zerhoudi, Saber
Granitzer, Michael
author_facet Zerhoudi, Saber
Granitzer, Michael
contents A fundamental tension exists between the demand for sophisticated AI assistance in web search and the need for user data privacy. Current centralized models require users to transmit sensitive browsing data to external services, which limits user control. In this paper, we present a browser extension that provides a viable in-browser alternative. We introduce a hybrid architecture that functions entirely on the client side, combining two components: (1) an adaptive probabilistic model that learns a user's behavioral policy from direct feedback, and (2) a Small Language Model (SLM), running in the browser, which is grounded by the probabilistic model to generate context-aware suggestions. To evaluate this approach, we conducted a three-week longitudinal user study with 18 participants. Our results show that this privacy-preserving approach is highly effective at adapting to individual user behavior, leading to measurably improved search efficiency. This work demonstrates that sophisticated AI assistance is achievable without compromising user privacy or data control.
format Preprint
id arxiv_https___arxiv_org_abs_2601_09928
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle In-Browser Agents for Search Assistance
Zerhoudi, Saber
Granitzer, Michael
Human-Computer Interaction
Information Retrieval
A fundamental tension exists between the demand for sophisticated AI assistance in web search and the need for user data privacy. Current centralized models require users to transmit sensitive browsing data to external services, which limits user control. In this paper, we present a browser extension that provides a viable in-browser alternative. We introduce a hybrid architecture that functions entirely on the client side, combining two components: (1) an adaptive probabilistic model that learns a user's behavioral policy from direct feedback, and (2) a Small Language Model (SLM), running in the browser, which is grounded by the probabilistic model to generate context-aware suggestions. To evaluate this approach, we conducted a three-week longitudinal user study with 18 participants. Our results show that this privacy-preserving approach is highly effective at adapting to individual user behavior, leading to measurably improved search efficiency. This work demonstrates that sophisticated AI assistance is achievable without compromising user privacy or data control.
title In-Browser Agents for Search Assistance
topic Human-Computer Interaction
Information Retrieval
url https://arxiv.org/abs/2601.09928