Follower Tracker · Chrome Extension
Last updated August 24, 2026
Follower Tracker snapshots your own Instagram followers and following list so you can see who unfollowed you over time. This page explains exactly what the extension reads, where it goes, and what it never does.
When you click Take snapshot on instagram.com, the extension:
It never asks for your Instagram password, never reads your DMs, posts, or browsing history, and only runs when you open the popup and click the button — there is no background polling.
Each snapshot — your Instagram username, the follower/following lists, and a timestamp — is sent to a Supabase project the developer operates, over HTTPS, and stored there so the ledger can compute diffs between snapshots. No other server or third party receives this data.
| Stored | Not stored |
|---|---|
| Instagram username & user ID | Instagram password or session cookie itself |
| Follower / following username lists, per snapshot | Posts, Stories, DMs, or profile content |
| Snapshot timestamps | Browsing history outside instagram.com |
| A per-account access token, cached locally in the browser | Any data from accounts you don’t snapshot yourself |
There is no sign-up form. On your first snapshot, the extension registers your username with the Supabase project and receives a token back, which it keeps in chrome.storage.local on your own device. That token is required for every later read or write for your account, and it is never sent anywhere except to that Supabase project.
| Permission | Used for |
|---|---|
cookies | Reading your existing instagram.com session cookie to identify which account is logged in. The cookie value itself is never transmitted or stored. |
storage | Caching your account ID and access token locally, so you don’t re-register on every snapshot. |
tabs | Opening the bundled ledger page in a new tab when you click “Open ledger”. |
| Host access to instagram.com | Calling Instagram’s follower/following endpoints on your behalf. |
| Host access to the Supabase project domain | Sending and retrieving your own snapshots. |
Your data is never sold, shared with advertisers, or used for anything besides showing you your own follower history inside the ledger. There is no analytics or tracking SDK in this extension.
Because there is no login system, deleting your data means asking the developer to remove your account’s rows from the Supabase project. Uninstalling the extension removes the locally cached token from your browser but does not delete snapshots already stored — contact the developer (below) to request deletion.
If what the extension collects or where it’s stored changes, this page will be updated and the “Last updated” date above will change accordingly.
Questions about this policy or a data deletion request? Reach the developer at [email protected].