Is Lightning Autofill Safe? — Extension Safety Profile
Quick verdict: Lightning Autofill earns a safety grade B, 72.6 out of 100, based on 5 of 5 dimensions.
72.6/100
Grade B · 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
Lightning Autofill earns a safety grade of B (72.6/100), measured across 5 of 5 dimensions. Its strongest area is Data & Privacy (100%). The weakest is Publisher & Identity (60%) — what holds its grade back the most.
On the public records we can check, Lightning Autofill looks broadly trustworthy. 500,000 active users/installs reported on the store. Store rating 3.4/5 from 2,100 user ratings. Last updated on the store 2025-11-13. This is an automated profile, not a hands-on review — so treat the grade as a starting point: open Lightning Autofill'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 | Automated signals | |
| Permissions & Access | 65% · 16.2/25 pts | Automated signals | |
| Data & Privacy | 100% · 16/16 pts | Automated signals | |
| Maintenance & Ownership | 60% · 4.5/7.5 pts | Automated signals | |
| Community Reputation | 68% · 6.8/10 pts | Automated signals |
In-depth safety analysis
The extension requests broad host permissions () along with scripting and userScripts, which together allow it to read and modify content on any website you visit. This is typical for an autofill
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 Lightning Autofill?
- Publisher lightningautofill.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 345 browser extensions we track, Lightning Autofill scores higher on safety than 33% of them.
Computed from our own database of assessed browser extensions — updated as we track more.
Evidence on File (12)
Lightning Autofill FAQ
- Is Lightning Autofill safe?
- Lightning Autofill earns a safety grade of B (72.6/100) 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 Lightning Autofill?
- Lightning Autofill is operated by lightningautofill.com.
Browse all browser extensions we've checked →