KISS Translator

Name: KISS Translator
Rating: 4.9286 (42 reviews)
Author: FishJar

By: FishJar

A simple bilingual translation extension & Greasemonkey script

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Features & Capabilities

KISS Translator is a lightweight, open-source bilingual translation extension and Greasemonkey script designed to keep translation simple and smart. It supports Chrome, Edge, Firefox, Safari, Kiwi (Android), Orion (iOS), Thunderbird and more. Use multiple translation backends (Google, Microsoft, DeepL, OpenAI/Gemini/Claude, Tencent, Volcengine, and others), customize rules, and apply rich-text or hide-original display options for a streamlined experience.

Built for power users and everyday browsing alike, KISS Translator offers features like mouseover translation, selection and input-box translation, YouTube subtitle translation, AI contextual memory, batch translation, customizable terminology, cross-client sync via WebDAV or KISS-Worker, rule sharing, and keyboard shortcuts (Alt+Q/C/K/S/O/I). Open-source and adaptable, it provides advanced hooks for developers and translators while staying easy to use for casual readers.

User Growth & Download Statistics

Add-on AI Developer Tools Accessibility Writing

By:

FishJar

Daily users:

2,814 153

Rating:

4.93

(42) 0.02

Version:

2.0.28 Last updated: 2026-06-28

Version code:

6328441

Creation date:

2023-08-10

Risk:

Permissions:

Content scripts matches:

<all_urls>
*

Size:

1.40MB

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-09

Compare stats and ranking:

Ranking

# 1,699 ▲ 76

Other rankings

#71 in Language Support ▲ 2

#63 in translations keyword 79

#125 in deepseek keyword 26 ▼ 3

#131 in telegram keyword 23

#149 in script keyword 23

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Other platforms

KISS Translator (v2.0.28)

70,000 4.85

(329)

KISS Translator (v2.0.28)

25,316 4.80

(19)

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:

FishJar

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/kiss-translator/

Website:

https://github.com/fishjar/kiss-translator

Permission Change History

2024-04-02: Version 1.8.4 → 1.8.5

Add Permissions: declarativeNetRequest

2024-03-21: Version 1.8.3 → 1.8.4

Add Permissions: scripting

2023-11-22: Version 1.7.12 → 1.7.13

Add Permissions: contextMenus

User Reviews

Users consistently praise KISS Translator for its high quality and reliability and like its visual/customization features (blur effect, style options). No recurring negatives appear across the provided reviews.

Pros

Widely praised quality and overall satisfaction — multiple reviews call it the best translation add-on.
Interface and visual/customization features (e.g., blur effect and multiple style choices) appreciated across reviews, indicating strong UX design.

Cons

Recent reviews

firefox环境内有时候右键选择的文本，在菜单内选择翻译文本，不弹出翻译框

by ku*****, 2026-07-04

by Fi*****, 2026-06-23

by on*****, 2026-06-22

View all user reviews ›

Is KISS Translator 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.

KISS Translator 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.
High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****

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.

KISS Translator is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
Good **** ********* *** **** **** *******