Is Stacker - Falling tetra blocks! Safe? — Extension Safety Profile
Quick verdict: Stacker - Falling tetra blocks! earns a safety grade A, 87.4 out of 100, based on 5 of 5 dimensions.
87.4/100
Grade A · 5 of 5 checks
What we found
Automated safety profile from public signals (the extension's manifest & permissions, store listing, publisher, privacy policy). A full review hasn't been published yet.
What this safety grade means
Stacker - Falling tetra blocks! earns a safety grade of A (87.4/100), measured across 5 of 5 dimensions. Its strongest area is Maintenance & Ownership (100%). The weakest is Publisher & Identity (60%) — what holds its grade back the most.
On the public records we can check, Stacker - Falling tetra blocks! comes through cleanly. 700,000 active users/installs reported on the store. Store rating 3.9/5 from 283 user ratings. Last updated on the store 2026-08-08. This is an automated profile, not a hands-on review — so treat the grade as a starting point: open Stacker - Falling tetra blocks!'s own store listing and privacy policy before installing, and weigh it against the other browser extensions we track below.
Safety Signals
Based on 5 of 5 safety dimensions
| Dimension | Score | Bar | Source |
|---|---|---|---|
| Publisher & Identity | 60% · 4.8/8 pts 2 of 5 checks verified | Automated signals | |
| Permissions & Access | 100% · 25/25 pts 3 of 3 checks verified | Automated signals | |
| Data & Privacy | 83% · 13.2/16 pts 4 of 5 checks verified | Automated signals | |
| Maintenance & Ownership | 100% · 7.5/7.5 pts 1 of 2 checks verified | Automated signals | |
| Community Reputation | 76% · 7.6/10 pts 2 of 4 checks verified | Automated signals |
In-depth safety analysis
The only permission requested is "storage," which allows the extension to save data locally, such as game progress or settings. For a simple falling-blocks game, this is a minimal and expected permission scope. It does not request access to browsing history, tabs, or any remote data, so it cannot directly interact with your web activity.
Games in browser extension form are generally low-risk, but a careful user should still consider that poorly maintained extensions can be abandoned or hijacked. Even with minimal permissions, an extension could alter its behavior through updates. Checking that the publisher is verifiable and that the extension is actively maintained helps reduce the chance of unexpected changes.
The fact sheet shows a strong Maintenance & Ownership score, reflected in the recent update and Manifest V3 compliance, which suggests active upkeep. The weakest dimension is Publisher & Identity, indicating limited publicly verified information about the developer. This doesn't mean the extension is unsafe, but it does mean a user has less ability to assess the publisher's track record or accountability outside the extension's own page.
AI-assisted analysis of the documented signals above (permissions, store data, privacy practices) — explains what they mean and the risks typical for this category. Not a hands-on test.
What the store listing shows
Who's Behind Stacker - Falling tetra blocks!?
- Publisher Kris10ansn
Public records identify the publisher, but no individual founders or a separate registered company are named — which is what holds the Publisher & Identity score back. Less public information about who operates an extension means less you can verify about their long-term accountability.
How it compares
Among the 838 browser extensions we track, Stacker - Falling tetra blocks! scores higher on safety than 90% of them.
Computed from our own database of assessed browser extensions — updated as we track more.
Evidence on File (12)
Stacker - Falling tetra blocks! FAQ
- Is Stacker - Falling tetra blocks! safe?
- Stacker - Falling tetra blocks! earns a safety grade of A (87.4/100) on our evidence-based assessment, based on 5 of 5 safety dimensions we could verify from public records. This is an automated profile built from public records, not a hands-on review.
- Who is behind Stacker - Falling tetra blocks!?
- Stacker - Falling tetra blocks! is operated by Kris10ansn.
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