Auto Highlight

Name: Auto Highlight
Rating: 4.5 (70 reviews)
Author: Juraj Mäsiar

🟨 Auto Highlight will help you see what's important on the web! ✅ ⚡ Supports RegExp search and many style and highlight options ⭕ 🥷 Hide text by setting font size to zero! 🔄️ Synchronize highlighter rules across devices.

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Features & Capabilities

Auto Highlight is an intuitive Chrome extension designed to automatically highlight, hide, and style important text on webpages, making it easier for you to spot key information instantly.

Key features include support for RegExp search to find precise matches, the ability to hide text by setting font size to zero or making it transparent, customizable styles such as background, text size, and color, and automatic synchronization across devices. This extension is ideal for researchers, shoppers, or any user wanting to emphasize or de-emphasize textual content while browsing. It also supports hiding or highlighting labels like "Free shipping" or "Out of stock", and includes a temporal highlight feature to mark keywords on every page visited.

As a privacy-conscious, independent developer product without ads, it offers powerful text management tools that blend easily into daily web use. Support the developer to keep this useful tool evolving!

User Growth & Download Statistics

Add-on Developer Tools Privacy & Security

By:

Daily users:

Rating:

Version:

5.3 Last updated: 2023-11-03

Version code:

5645492

Creation date:

2020-07-21

Risk:

Permissions:

Content scripts matches:

<all_urls>

Size:

1.92MB

Email:

ad*****@fastaddons.com

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-16

Compare stats and ranking:

Ranking

# 2,088 ▼ 1

Other rankings

#79 in Shopping ▲ 2

#248 in Search Tools ▼ 3

#332 in Appearance

#8 in highlighter keyword 51

#11 in delight keyword 3

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Other platforms

Auto Highlight (v5.3)

30,000 4.70

(99)

Auto Highlight (v5.3)

10,202 4.80

(9)

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Juraj Mäsiar

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/auto_highlight/

Email:

ad*****@fastaddons.com

Website:

https://github.com/fastaddons/AutoHighlight/issues

Permission Change History

2023-02-01: Version 4.5 → 4.7

Add Permissions: scripting

User Reviews

Users broadly praise Auto Highlight for reliable, customizable keyword highlighting and frequent daily use that saves time. They highlight its versatility and stability, with many noting it does exactly what it promises and offers per-word customization. However, reviewers want more features and better UX: grouping rules, CSS-limited search, multi-word phrasing, and formatting options. A couple of users also point out a need for easier access (context-menu quick highlight) and improvements when handling large sets of highlights. Overall, it's effective but could benefit from more customization and streamlined UI.

Pros

Reliable and effective highlighting that does exactly what it promises.
Highly customizable per word and per rule.
Great for daily use and saves time on repetitive searches.
Versatile and stable extension.
One of the few Firefox highlighting add-ons that actually works well.

Cons

Requests for grouping rules, CSS selectors to limit search, multi-word phrase support, and text formatting options.
Lacks a quick highlight via context menu; currently relies on a dialog.

Recent reviews

by Fi*****, 2026-02-20

It's certainly not a replacement for the default find/highlight but on sites where I do the same searches everyday Auto Highlight is a godsend. Also it's persistent unlike the find in Firefox. Firefox clears when you change pages (Chrome is persistent). This is annoying when you have to go through several pages to highlight the same text as you must manually highlight again every time. This is going to save me a lot of time. Thank you Juraj.

by Ni*****, 2025-11-17

by Se*****, 2025-10-30

View all user reviews ›

Is Auto Highlight Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Auto Highlight requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Auto Highlight has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
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