Is Html Validator Safe?

Html Validator — Nerq Trust Score 50.5/100 (C- grade). Based on analysis of 2 trust dimensions, it is has notable safety concerns. Last updated: 2026-04-06.

Use Html Validator with some caution. Html Validator is a Firefox extension with a Nerq Trust Score of 50.5/100 (C-), based on 3 independent data dimensions. Below the recommended threshold of 70. Security: 90/100. Popularity: 15/100. Data sourced from addons.mozilla.org metadata, permissions analysis, and source code availability. Last updated: 2026-04-06. Machine-readable data (JSON).

Is Html Validator safe?

CAUTION — Html Validator has a Nerq Trust Score of 50.5/100 (C-). It has moderate trust signals but shows some areas of concern that warrant attention. Suitable for development use — review security and maintenance signals before production deployment.

Security Analysis → Html Validator Privacy Report →

What is Html Validator's trust score?

Html Validator has a Nerq Trust Score of 50.5/100, earning a C- grade. This score is based on 2 independently measured dimensions including security, maintenance, and community adoption.

Security
90
Popularity
15

What are the key security findings for Html Validator?

Html Validator's strongest signal is security at 90/100. No known vulnerabilities have been detected. It has not yet reached the Nerq Verified threshold of 70+.

Security score: 90/100 (strong)
Popularity: 15/100 — Firefox Add-ons

What is Html Validator and who maintains it?

AuthorMarc Gueury
CategoryFirefox Add-ons
SourceN/A

Similar Firefox by Trust Score

uBlock Origin (60)Dark Reader (57)IDM Integration Module (57)Adblock Plus (57)Return YouTube Dislike (57)
See all safest Firefox →

Compare

Html Validator vs uBlock OriginHtml Validator vs Dark ReaderHtml Validator vs IDM Integration Module

Safety Guide: Html Validator

What is Html Validator?

Html Validator is a Firefox add-on — HTML Validator is a Mozilla extension that adds HTML validation inside Firefox, Mozilla. The number of errors of a HTML page is seen on the form of an icon For Firefox 56, use 0.974 (see all version.

How to Verify Safety

Review permissions on addons.mozilla.org. Check if source code is available.

You can also check the trust score via API: GET /v1/preflight?target=Html Validator

Key Safety Concerns for Firefox add-on

When evaluating any Firefox add-on, watch for: excessive permissions, data harvesting.

Trust Assessment

Html Validator has a Nerq Trust Score of 50/100 (C-) and has not yet reached Nerq trust threshold (70+). This score is based on automated analysis of security, maintenance, community, and quality signals.

Key Takeaways

Frequently Asked Questions

Is Html Validator Safe?
Use with some caution. Html Validator with a Nerq Trust Score of 50.5/100 (C-). Strongest signal: security (90/100). Score based on Security (90/100), Popularity (15/100).
What is Html Validator's trust score?
Html Validator: 50.5/100 (C-). Score based on Security (90/100), Popularity (15/100). Scores update as new data becomes available. API: GET nerq.ai/v1/preflight?target=Html Validator
What are safer alternatives to Html Validator?
In the Firefox Add-ons category, more Firefox add-ons are being analyzed — check back soon. Html Validator scores 50.5/100.
What permissions does Html Validator need?
Review Html Validator's requested permissions carefully. Extensions requesting 'Read and change all data on all websites' carry the highest risk. Current trust score: 50.5/100.
Is Html Validator open source?
Check Html Validator's listing for source code availability. Open-source Firefox add-ons can be independently audited. Trust score: 50.5/100.
API: /v1/preflight Trust Badge API Docs

See Also

Disclaimer: Nerq trust scores are automated assessments based on publicly available signals. They are not endorsements or guarantees. Always conduct your own due diligence.

We use cookies for analytics and caching. Privacy