Opportunity brief · Oct 30, 2026

ModHeader v2

Modify HTTP request and response headers, cookies, redirects and CSP. All data stays on your device.

RevenueNo price in the listingNo price listed

OpportunityNot scoredAn opportunity needs a revenue figure of at least $1k a month.

1–2★ ratingsnot publishedcomplaints from Aug 2026–Sep 2026, almost all in the last 24 months

Build difficultyLowBrowser extension only; main work is reliable header editing and Chrome Web Store approval, no payments or regulation.

The pitch, and what the numbers say

ModHeader v2 — Developer

No revenue figure: see why on the full x-ray.

Why users leave

The free diagnosis shows the top complaint. The full brief has every cluster, the build ideas and the buyers.

Bugs/Reliability · 1 of 2 of complaints read

Unreliable and frustrating: features do not work as expected; reviewers say easier alternatives exist.

“The experience has been frustrating, with things not working as expected and the overall extension feeling unreliable.”

What a challenger would build

3 build ideas, each answering a complaint above — in the full brief

Closest alternatives

Who is buying right now

No public buyer thread in the same market in the last 30 days. The scanner runs every 15 minutes.

Get the full ModHeader v2 brief

Full 1-star breakdown with verbatim quotes, the build blueprint and every live thread — on every product.

How to read this

Sources: the product's public listing and reviews, its published price, and public forum threads. Revenue is an estimate unless marked verified by the founder; the formula and its inputs are on the full x-ray. Complaints are grouped by a language model and each quote is a verbatim excerpt, linked to the original review. Build difficulty is a model's reading of the listing and the complaints, not a measurement. Figures are a snapshot of Oct 30, 2026. Corrections: corrections.

Open the full x-ray →