Jambofy

Name: Jambofy
Rating: 4.8784 (74 reviews)
Author: gamewrecker

Improves boring youtube thumbnails and Jambofys them Are you bored of every YouTube thumbnail being boring? Do you wish Jambo the cat was in every YouTube thumbnail? Well now you can have exactly that with this extension.

Download

Install

Features & Capabilities

Jambofy is a playful Chrome extension designed to enhance the visual appeal of YouTube thumbnails. It injects a unique charm by adding Jambo the cat into every thumbnail, turning dull previews into eye-catching visuals. Ideal for users looking to add a bit of fun and personality while browsing YouTube.

Originally created by another developer, this version aims to replicate the popular thumbnail enhancement experience, making YouTube browsing more engaging and entertaining. Whether you're tired of mundane thumbnails or just want to see more of Jambo on your screen, Jambofy is the perfect tool to refresh your video browsing experience.

User Growth & Download Statistics

Add-on Entertainment

By:

Daily users:

Rating:

Version:

0.1.2 Last updated: 2024-02-18

Version code:

5693763

Creation date:

2023-12-12

Risk:

Host permissions:

https://www.youtube.com/*

Content scripts matches:

www.youtube.com

Size:

5.56MB

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-18

Compare stats and ranking:

Ranking

# 2,202 ▼ 26

Other rankings

#205 in Games & Entertainment ▼ 4#120 in improve keyword 33 ▼ 3#218 in details keyword 55 ▼ 5

Other platforms

Jambofy (v2.1.1)

60,000 4.94

(2,433)

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:

gamewrecker

Firefox Add-ons Store

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

User Reviews

Users overwhelmingly love Jambofy for replacing thumbnails with a cute, funny Jambo cat and for making YouTube more entertaining. Reviews repeatedly state it works as advertised and significantly improves the browsing experience, with many calling it perfect or life-changing. No single technical issue appears consistently across multiple reviews.

Pros

Consistently described as funny, silly, and entertaining
Replaces YouTube thumbnails with a cute Jambo cat, improving the visual experience
Frequently praised as working as advertised and reliably showing Jambo on videos
Many users say it makes YouTube much more enjoyable — "life-changing" or "perfect" sentiments recur
Lightweight, delight-inducing design — users repeatedly call it charming and essential

Cons

Recent reviews

if it used to work it doesent work now and alll it does it lag youtube

by jo*****, 2026-06-10

by Kr*****, 2025-10-06

This extension modifies the wrong thumbnail element. Jambo only appears for a split second when hovering over videos, before the preview starts.

by Fi*****, 2025-08-06

View all user reviews ›

Is Jambofy 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.

Jambofy requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Request access to the following domains: youtube.com
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.

Jambofy 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 **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
Good **** ********* *** **** **** *******