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Workflow & Planning

CF Focus — AI Blocker for Competitive Programming

By Yostina Abera

Blocks AI chatbots while you're on Codeforces, LeetCode, AtCoder and other CP sites. Progressive hint unlock, focus sessions, stats.

View Chrome Web Store

Time on the storeUnder a yearA rough range, not an exact date

Store users20As shown on the Chrome Web Store

Chrome Web Store rating5.0 / 57 ratings on the Chrome Web Store

Last store updateNever updatedVersion 1.0.0

Inside the extension

CF Focus — AI Blocker for Competitive Programming developer product preview 1

Product image 1 of 4

Reviews

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Permissions & access

Access levelMedium

Can see the address and title of every open tab, plus 1 more sensitive permission.

What it’s allowed to do, not what it actually does. Not a safety rating.

Permissions 6

Sensitive2

See the address and title of every open tabtabs
Change web traffic on the sites it can accessdeclarativeNetRequestWithHostAccess

Standard4

Save its own settingsstorage
Block or redirect requests with set rulesdeclarativeNetRequest
Run tasks on a schedulealarms
Show desktop notificationsnotifications

Members also see when a new version asks for new access.

Website access 35

Extension ID: obkgjknggnkpboahhaeieemknmpngmpl
Package size: 50.33KiB
Manifest: Version 3

The maker

This is the only listing we know of from Yostina Abera.

Listings: 1
Combined store users: ≈20
Store Featured: 0

Combined users can count the same person more than once. Maker profile

Ext Watch AI

Should you build in this niche?

One research report for CF Focus — AI Blocker for Competitive Programming. Reports come with Plus, Pro and Max.

Takeaway & demandCited takeaway and search volumes
Traffic & domainPopularity rank, visits and authority
Money & pricingPlans and prices from the maker’s site
ReviewsComplaints and praise, quoted
Competitors & ranksRank against the closest listings
Build opportunityWhat to build and how to position it

Every number shows its source and date
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