Theme Customizer - for Firefox Firefox

Theme Customizer - for Firefox

Create custom themes in seconds. Use live preview, smart color pickers, and a randomizer to design your perfect browser look.

Features & Capabilities

Take full control over your browser's look with Theme Customizer - for Firefox! Whether you prefer a sleek dark mode, a vibrant colorful setup, or a clean minimalist design, this extension lets you mix and match colors for your browser interface in just a few clicks. No design skills or coding required—just pick your colors and enjoy a personalized browsing experience.

Key Features: • ✨ Full Interface Customization: Instantly change the colors of your browser frame (top bar), toolbars, tabs, and active window areas. • 🎨 Smart Color Pickers: Use intuitive color wheels to find your favorite shades or enter exact RGB values for maximum precision. • ⚡ Quick Contrast Buttons: Swap text colors between pure white and solid black instantly to ensure perfect readability. • ↩️ Design History (Undo): Made a mistake? Quickly reload your previous design with the "Load Last Design" feature. • 🗑️ Safe One-Click Reset: Want a fresh start? Instantly restore the original Firefox default theme anytime. • 💾 Persistent Storage: Your custom creations are saved automatically and reload instantly whenever you restart Firefox.

How to use:

  1. Click the Theme Customizer icon in your toolbar.
  2. Select your desired colors for the Frame, Toolbar, and Text.
  3. Click Apply Design to see the changes instantly. Note: This extension respects your privacy. All your themes and preferences are stored locally on your device and are never shared or sent to any servers.

User Growth & Download Statistics

Manifest V3 Add-on
By:
HaSa-Tools
Daily users:
1
Version:
1.0.0 Last updated: 2026-06-22
Version code:
6314337
Creation date:
2026-06-19
Risk:
Moderate risk impact High risk likelihood
Permissions:
Size:
46.48KB
Email:
in*****@neues-billiger.de
URLs:
Website
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-07-25
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:
HaSa-Tools
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/theme-customizer-for-firefox/
Email:
in*****@neues-billiger.de
Website:
https://neues-billiger.de/

Is Theme Customizer - for Firefox 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.

Theme Customizer - for Firefox requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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.

Theme Customizer - for Firefox is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
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  • Medium **** ********* *** ***** ** *** **** * ******* *** ********** *** *** ** ****** ** *****
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