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Features & Capabilities
User Growth & Download Statistics
- By:
- Tim Nguyen
- Daily users:
- 433 8
- Rating:
- 4.72 (275)
1 ratings - Version:
- 3.6 Last updated: 2022-10-30
- Version code:
- 5479328
- Creation date:
- 2016-06-13
- Risk:
- Moderate risk impact Low risk likelihood
- Permissions:
- Size:
- 85.61KB
- URLs:
- Website
- Full description:
- See detailed description
- Source:
- Firefox Add-ons Store
- Data ingested on:
- 2026-06-20
- Compare stats and ranking:
-
Ranking
For Developers
Contact the developer
Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Permission Change History
2022-10-29: Version 3.4 → 3.5
Remove Permissions: <all_urls>
Add Optional permissions: <all_urls>
User Reviews
Pros
- Works perfectly.
- Dynamic tab color change is well-received.
- Better implementation than in Vivaldi.
Cons
- Settings are not reflected when Firefox is restarted.
- Dark theme does not change automatically with system settings.
- New permissions raise concerns without developer response.
Recent reviews
by Ka*****, 2026-06-10
Settings are not reflected when Firefox is restarted.
by Ji*****, 2024-10-31
by To*****, 2024-07-24
Is VivaldiFox 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.
VivaldiFox 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.
VivaldiFox 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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