Features & Capabilities
User Growth & Download Statistics
- By:
- Wip!
- Daily users:
- 295 -3
- Rating:
- 4.61 (23)
- Version:
- 2.0.1 Last updated: 2020-12-10
- Version code:
- 5147902
- Creation date:
- 2017-09-04
- Risk:
- Low risk impact Low risk likelihood
- Permissions:
- Size:
- 13.70KB
- Full description:
- See detailed description
- Source:
- Firefox Add-ons Store
- Data ingested on:
- 2026-06-19
- Compare stats and ranking:
- Startup Theme Changer vs Auto theme changer
- Startup Theme Changer vs Themeinator
- Startup Theme Changer vs ThemeShuffler
Contact the developer
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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
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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