Hex Preview Firefox

Hex Preview

Allows you to preview a swatch of any hexadecimal color code in a little box, by highlighting it.

Features & Capabilities

A lightweight browser extension that - upon selection of a valid hex code - displays a swatch of the color it represents. By default, it also displays the RGB values represented in decimal, and the Alpha value represented as a float between 0 and 1 (like CSS). Alpha value display format can be changed to its decimal representation in the add-on's options.

Supported formats: #RRGGBB #RRGGBBAA #RGB #RGBA RRGGBB RRGGBBAA RGB RGBA

User Growth & Download Statistics

Manifest V2 Add-on
By:
Lucy Havok
Daily users:
16
Rating:
4.00
(1)
Version:
1.2.2 Last updated: 2024-07-16
Version code:
5776198
Creation date:
2024-04-07
Risk:
Moderate risk impact Low risk likelihood
Permissions:
Content scripts matches:
  • <all_urls>
Size:
18.57KB
Email:
lu*****@naln1.ca
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-16
Compare stats and ranking:

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:
Lucy Havok
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/hexpreview/
Email:
lu*****@naln1.ca

Permission Change History

2024-04-09: Version 1.1.0 → 1.2.1
Add Permissions: storage

User Reviews

does everything it says on the label, though selfishly i do wish it had a color picker
by ca*****, 2025-06-23
View all user reviews ›

Is Hex Preview 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.

Hex Preview 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.

Hex Preview 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 **** ********* *** **** **** *******
Extension Guard
Extension Guard

Discover every extension in use, analyze risks, and enforce blocking policies with Extension Guard

Secure Your Browser
Upgrade to see full risk analysis details

Best Hex Preview Alternatives

Here are some Firefox add-ons that are similar to Hex Preview: