C021

By: cc

C021

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Features & Capabilities

The C021 Chrome extension is a powerful tool that aims to improve your web browsing efficiency. With a focus on user-friendly design, C021 integrates seamlessly with your browser to provide enhanced functionality. Whether you're looking to streamline tasks, improve productivity, or customize your browsing experience, C021 offers a range of features that cater to your needs.

Designed for versatility, C021 supports various use cases and adapts to your workflow. Its intuitive interface and robust performance make it a valuable addition to your Chrome environment. Install C021 today to unlock new possibilities and optimize your online activities.

User Growth & Download Statistics

Theme

By:

Daily users:

425 6

Rating:

5.00

(17)

Version:

1.0 Last updated: 2021-09-24

Version code:

5300329

Creation date:

2021-09-24

Risk:

Size:

8.05KB

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-16

Compare stats and ranking:

Ranking

# 5,376 ▲ 18

Other rankings

#124 in Solid ▲ 1

For Developers

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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:

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/c021/

User Reviews

Pros

Completeness of the theme, matching all elements without unthemed dialog boxes.
High contrast, making it visually appealing and easy to read.
Simple and clean appearance, enhancing user experience.

Cons

Recent reviews

Not for everyone, but I love the completeness of the theme and the high contrast. What do I mean by completeness? Usually with a theme there is one dialog box somewhere that's either unthemed, because it is in the default theme and doesn't match, or unusable, because the text is the same color as the background. Plus, out of all the themes I have saved, this is one of just a few that works out of the box with Firefox's new vertical tabs.

by Fi*****, 2025-04-02

by No*****, 2023-05-07

View all user reviews ›

Is C021 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.

C021 does not require any sensitive permissions.

Risk impact analysis details

Low This permission has no access or impact on the user's system or data, thus carrying no risk.

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.

C021 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.
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