# Block or Highlight Search Engine Results

> Filter your search engine results. Block unwanted results and highlight the favorite ones. It works with Duckduckgo, Google, Yahoo, Bing, Startpage, Ecosia, Yandex, OneSearch and Baidu. https://youtu.be/U\_Ctx4Gq-lw

Canonical page: [https://chrome-stats.com/d/hohser](https://chrome-stats.com/d/hohser)

## Overview

- **ID:** `hohser`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** pistom
- **Category:** search-tools,other
- **Daily users:** 1,211
- **Weekly downloads:** 8
- **Rating:** 4.17 / 5 (82 ratings)
- **Version:** 4.6.1
- **Last updated:** 2025-03-24
- **First published:** 2018-11-24
- **Size:** 350 KB
- **Data as of:** 2026-09-11
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/hohser/)
- **Website:** [https://github.com/pistom/hohser](https://github.com/pistom/hohser)

## Description

The "Block or Highlight Search Engine Results" Chrome extension empowers users to tailor their search experience by filtering results across multiple popular search engines such as Google, DuckDuckGo, Bing, Yahoo, and more. It allows users to block unwanted search results and highlight preferred ones, improving search efficiency and relevance. Whether you want to highlight trusted sources like Wikipedia or hide distracting sites like Facebook, this extension adds a layer of control to your online searches. Compatible with numerous search engines including Startpage, Ecosia, Yandex, OneSearch, and Baidu, it offers versatility for diverse browsing preferences. Simply set your filters to mark, highlight, hide, or block specific domains and enjoy a cleaner, more focused search experience. Reach out if you use another search engine for added support.

## Rankings

- #2,980 — Overall
- #352 — Search Tools
- #7 — result
- #27 — engine
- #39 — highlighter
- #72 — bing

## Permissions and access

### Permissions

- `storage`
- `tabs`
- `contextMenus`

### Content script matches

- `*.google.com`
- `*.google.ac`
- `*.google.ad`
- `*.google.ae`
- `*.google.com.af`
- `*.google.com.ag`
- `*.google.com.ai`
- `*.google.al`
- `*.google.am`
- `*.google.co.ao`
- `*.google.com.ar`
- `*.google.as`
- `*.google.at`
- `*.google.com.au`
- `*.google.az`
- `*.google.ba`
- `*.google.com.bd`
- `*.google.be`
- `*.google.bf`
- `*.google.bg`
- `*.google.com.bh`
- `*.google.bi`
- `*.google.bj`
- `*.google.com.bn`
- `*.google.com.bo`
- `*.google.com.br`
- `*.google.bs`
- `*.google.bt`
- `*.google.co.bw`
- `*.google.by`
- `*.google.com.bz`
- `*.google.ca`
- `*.google.com.kh`
- `*.google.cc`
- `*.google.cd`
- `*.google.cf`
- `*.google.cat`
- `*.google.cg`
- `*.google.ch`
- `*.google.ci`
- `*.google.co.ck`
- `*.google.cl`
- `*.google.cm`
- `*.google.cn`
- `*.google.com.co`
- `*.google.co.cr`
- `*.google.com.cu`
- `*.google.cv`
- `*.google.com.cy`
- `*.google.cz`
- `*.google.de`
- `*.google.dj`
- `*.google.dk`
- `*.google.dm`
- `*.google.com.do`
- `*.google.dz`
- `*.google.com.ec`
- `*.google.ee`
- `*.google.com.eg`
- `*.google.es`
- `*.google.com.et`
- `*.google.fi`
- `*.google.com.fj`
- `*.google.fm`
- `*.google.fr`
- `*.google.ga`
- `*.google.ge`
- `*.google.gf`
- `*.google.gg`
- `*.google.com.gh`
- `*.google.com.gi`
- `*.google.gl`
- `*.google.gm`
- `*.google.gp`
- `*.google.gr`
- `*.google.com.gt`
- `*.google.gy`
- `*.google.com.hk`
- `*.google.hn`
- `*.google.hr`
- `*.google.ht`
- `*.google.hu`
- `*.google.co.id`
- `*.google.iq`
- `*.google.ie`
- `*.google.co.il`
- `*.google.im`
- `*.google.co.in`
- `*.google.io`
- `*.google.is`
- `*.google.it`
- `*.google.je`
- `*.google.com.jm`
- `*.google.jo`
- `*.google.co.jp`
- `*.google.co.ke`
- `*.google.ki`
- `*.google.kg`
- `*.google.co.kr`
- `*.google.com.kw`
- `*.google.kz`
- `*.google.la`
- `*.google.com.lb`
- `*.google.com.lc`
- `*.google.li`
- `*.google.lk`
- `*.google.co.ls`
- `*.google.lt`
- `*.google.lu`
- `*.google.lv`
- `*.google.com.ly`
- `*.google.co.ma`
- `*.google.md`
- `*.google.me`
- `*.google.mg`
- `*.google.mk`
- `*.google.ml`
- `*.google.com.mm`
- `*.google.mn`
- `*.google.ms`
- `*.google.com.mt`
- `*.google.mu`
- `*.google.mv`
- `*.google.mw`
- `*.google.com.mx`
- `*.google.com.my`
- `*.google.co.mz`
- `*.google.com.na`
- `*.google.ne`
- `*.google.com.nf`
- `*.google.com.ng`
- `*.google.com.ni`
- `*.google.nl`
- `*.google.no`
- `*.google.com.np`
- `*.google.nr`
- `*.google.nu`
- `*.google.co.nz`
- `*.google.com.om`
- `*.google.com.pk`
- `*.google.com.pa`
- `*.google.com.pe`
- `*.google.com.ph`
- `*.google.pl`
- `*.google.com.pg`
- `*.google.pn`
- `*.google.com.pr`
- `*.google.ps`
- `*.google.pt`
- `*.google.com.py`
- `*.google.com.qa`
- `*.google.ro`
- `*.google.rs`
- `*.google.ru`
- `*.google.rw`
- `*.google.com.sa`
- `*.google.com.sb`
- `*.google.sc`
- `*.google.se`
- `*.google.com.sg`
- `*.google.sh`
- `*.google.si`
- `*.google.sk`
- `*.google.com.sl`
- `*.google.sn`
- `*.google.sm`
- `*.google.so`
- `*.google.st`
- `*.google.sr`
- `*.google.com.sv`
- `*.google.td`
- `*.google.tg`
- `*.google.co.th`
- `*.google.com.tj`
- `*.google.tk`
- `*.google.tl`
- `*.google.tm`
- `*.google.to`
- `*.google.tn`
- `*.google.com.tr`
- `*.google.tt`
- `*.google.com.tw`
- `*.google.co.tz`
- `*.google.com.ua`
- `*.google.co.ug`
- `*.google.co.uk`
- `*.google.com.uy`
- `*.google.co.uz`
- `*.google.com.vc`
- `*.google.co.ve`
- `*.google.vg`
- `*.google.co.vi`
- `*.google.com.vn`
- `*.google.vu`
- `*.google.ws`
- `*.google.co.za`
- `*.google.co.zm`
- `*.google.co.zw`
- `*.duckduckgo.com`
- `*.yahoo.com`
- `*.yahoo.co.jp`
- `*.qwant.com`
- `*.bing.com`
- `*.startpage.com`
- `*.ecosia.org`
- `*.yandex.ru`
- `*.yandex.com`
- `*.onesearch.com`
- `*.baidu.cn`
- `*.baidu.com`
- `*.kagi.com`
- `*.search.brave.com`

## Safety

- **Risk impact:** Very high risk impact
- **Risk likelihood:** Low risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Review summary

Users generally praise Block or Highlight Search Engine Results for effectively removing unwanted sites from search results by domain, and for offering both hiding and highlighting options. It works with major engines (Google and DuckDuckGo) and can handle large blocking lists, which many find life-changing for research. However, the experience is not flawless: blocking is not universal across engines; some searches (notably Startpage) don’t get blocked reliably. There are limits on how many pages can be blocked and potential performance issues as the block list grows, plus occasional partial hiding. Android support and ongoing maintenance have been noted as concerns.

### Pros

- Effectively blocks/hides results by domain across Google and DuckDuckGo, cleaning up search results.
- Offers both blocking and highlighting options for domains, giving flexible filtering.
- Capable of handling large blocking lists (thousands of sites).
- Significantly improves research workflow and reduces clutter, often described as life-changing.

### Cons

- Engine compatibility issues: Startpage (and some newer engines) are not reliably blocked.
- Blocking is incomplete: some results (top or sponsored) may still appear.
- Block list size limits and performance issues as the list grows (sync can choke).

## Similar extensions and apps

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- [Privacy Search](https://chrome-stats.com/d/privacy-search) — 1 users, 2.75 / 5

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Source: [Chrome-Stats](https://chrome-stats.com/d/hohser)