Startup Theme Changer Firefox

Startup Theme Changer

By: Wip!
Automatically changes the active theme each time the browser starts.

Features & Capabilities

Startup Theme Changer is a Firefox extension that automatically changes your browser's active theme each time it starts. You can choose to rotate through your themes in order or select one randomly for a fresh browsing experience every time.

The extension supports excluding Firefox's embedded themes such as Default, Light, Dark, and Alpenglow from rotation. Inspired by Personas Shuffler, this addon enhances personalization and keeps your browser appearance dynamic and engaging without any manual effort.

User Growth & Download Statistics

Contact the developer

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Developed by:
Wip!
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/startup-theme-changer/

User Reviews

by Ha*****, 2025-10-16

It works, that's everything to say about. Good replacement to the Persona changers I used back when this was a thing. Would be great to have the ability to choose, which themes to be skipped. In my case it ultimatively skips the colored Firefox themes I downloaded to use along with the default dark, light, automatic and alpenglow ones I would agree on skipping as those can't be uninstalled.
by BK*****, 2025-08-05

What a beautiful extension. I would also love the option to create sets of themes which are used, e.g. only dark themes. But other than that, it does what it said, respect.
by Ar*****, 2025-06-10
View all user reviews ›

Is Startup Theme Changer 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.

Startup Theme Changer requires very minimum permissions.

Risk impact analysis details
  • Medium Manages other extensions, which allows oversight but might intervene with user configurations and choices.
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.

Startup Theme Changer 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 **** ********* *** **** **** *******
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Best Startup Theme Changer Alternatives

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