Is Close Duplicate Tabs Safe? — Extension Safety Profile
Quick verdict: Close Duplicate Tabs earns a safety grade A, 81.6 out of 100, based on 5 of 5 dimensions.
81.6/100
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
Close Duplicate Tabs earns a safety grade of A (81.6/100), measured across 5 of 5 dimensions. Its strongest area is Permissions & Access (90%). The weakest is Publisher & Identity (60%) — what holds its grade back the most.
On the public records we can check, Close Duplicate Tabs comes through cleanly. 20,000 active users/installs reported on the store. Store rating 4.1/5 from 34 user ratings. Last updated on the store 2025-12-21. This is an automated profile, not a hands-on review — so treat the grade as a starting point: open Close Duplicate Tabs'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 | 90% · 22.5/25 pts 3 of 3 checks verified | Automated signals | |
| Data & Privacy | 83% · 13.2/16 pts 4 of 5 checks verified | Automated signals | |
| Maintenance & Ownership | 85% · 6.4/7.5 pts 1 of 2 checks verified | Automated signals | |
| Community Reputation | 74% · 7.4/10 pts 2 of 4 checks verified | Automated signals |
In-depth safety analysis
This extension requests only the tabs permission, which lets it read the URLs and titles of all open tabs. That access is essential for identifying and closing duplicate tabs, and it is a minimal, expected permission for a tab-management tool. No broader permissions like browsing history or site data are requested.
Because the tabs permission can see every page you have open, a cautious user should know that any extension with this capability could technically access that list. The developer has declared that data is not sold or used for unrelated purposes, but these are self-reported. For general browser utilities, it is good practice to check that the extension is actively maintained and to review community ratings for any unusual patterns.
In the safety assessment, the strongest dimension is Permissions & Access, reflecting the limited and appropriate permission request. The weakest is Publisher & Identity, which indicates that the developer (lukaspolak.com) is a small or individual entity with less publicly verifiable trust signals. This is common for niche extensions and not a risk by itself, but users who prefer strong corporate accountability may want to take that into account.
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 Close Duplicate Tabs?
- Publisher lukaspolak.com
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, Close Duplicate Tabs scores higher on safety than 69% of them.
Computed from our own database of assessed browser extensions — updated as we track more.
Evidence on File (12)
Close Duplicate Tabs FAQ
- Is Close Duplicate Tabs safe?
- Close Duplicate Tabs earns a safety grade of A (81.6/100) 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 Close Duplicate Tabs?
- Close Duplicate Tabs is operated by lukaspolak.com.
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