Is Highlighter Safe? — Extension Safety Profile

Quick verdict: Highlighter earns a safety grade B, 68.3 out of 100, based on 5 of 5 dimensions.

B

68.3/100

Grade B · 5 of 5 checks


What we found

· Data updated

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

Highlighter earns a safety grade of B (68.3/100), measured across 5 of 5 dimensions. Its strongest area is Data & Privacy (100%). The weakest is Maintenance & Ownership (10%) — what holds its grade back the most.

On the public records we can check, Highlighter looks broadly trustworthy. 100,000 active users/installs reported on the store. Store rating 3.7/5 from 316 user ratings. Last updated on the store 2023-06-26. This is an automated profile, not a hands-on review — so treat the grade as a starting point: open Highlighter'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

DimensionScoreBarSource
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 10% · 0.8/7.5 pts Automated signals
Community Reputation 76% · 7.6/10 pts Automated signals

What the store listing shows

Highlighter listing on the Chrome Web Store
Highlighter on the Chrome Web Store, captured 2026-07-25. View the live listing ↗

Who's Behind Highlighter?

  • Publisher Jérôme Parent-Lévesque

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, Highlighter scores higher on safety than 13% of them.

Computed from our own database of assessed browser extensions — updated as we track more.

Evidence on File (12)

Founder public: Publisher publicly identified: Jérôme Parent-Lévesque (individual founders not separately named).
Our reports database · Captured 2026-07-24
Registered company: Jérôme Parent-Lévesque.
Our reports database · Captured 2026-07-24
Data collection scope: Developer lists no user-data categories collected on the store privacy disclosure.
Source: github.com ↗ · Captured 2026-07-24
Data not sold: Developer declares on the Chrome Web Store that your data is not sold to third parties.
Source: github.com ↗ · Captured 2026-07-24
Data use limited: Developer declares data isn't used for unrelated purposes or to determine creditworthiness/lending.
Source: github.com ↗ · Captured 2026-07-24
Privacy policy present: A privacy policy is linked from the store listing: https://github.com/jeromepl/highlighter/blob/master/privacy_policy.md
Source: github.com ↗ · Captured 2026-07-24
High-capability permissions: Requests 1 high-capability permission(s): scripting.
Website access scope: Requests access to ALL websites you visit (<all_urls>) — broad for what this extension does.
Manifest version: Built on Manifest V3 (the modern, more sandboxed permission model).
Last updated recency: Last updated on the store 2023-06-26.
Store rating: Store rating 3.7/5 from 316 user ratings.
Store users: 100,000 active users/installs reported on the store.

Highlighter FAQ

Is Highlighter safe?
Highlighter earns a safety grade of B (68.3/100) 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 Highlighter?
Highlighter is operated by Jérôme Parent-Lévesque.

Browse all browser extensions we've checked →

Share 𝕏 Reddit Facebook

Cite this profile: Is Highlighter safe? — ExtensionTrust. ExtensionTrust. https://extensiontrust.com/tool/highlighter/

Get browser-extension safety alerts