Privacy Policy

Overview

Canonic: Anime Filler Detector ("the Extension") is committed to protecting your privacy. This Privacy Policy explains what information the Extension accesses, how it is processed, and how you can control your data.

Key principle: The Extension does not collect personal data, does not transmit identifying information to third parties, and does not use analytics or usage tracking. The only data it sends to its developer is anonymous error reports about breakages (see Anonymous Error Reports), which stop if you disable or uninstall the Extension, and an issue report only if you choose to submit one (see Issue Reports You Submit).

What Information We Access

Page Content (Read Locally Only)

The Extension reads the HTML content of the pages you visit on the supported streaming platforms:

• Netflix.com
• Crunchyroll.com
• PrimeVideo.com

This information is used to identify which anime show and episodes you are viewing. Page content is never transmitted to any server — it remains entirely on your device for local processing only.

Active Tab Permission

The Extension requests the activeTab permission to query the current tab and detect which streaming platform you are visiting. This allows the popup to identify whether Netflix, Crunchyroll, or Prime Video is loaded and refresh the page if needed to display updated episode data. This permission is used for functionality only and does not access any personal data.

No Personal Data Collection

The Extension does not:

• Collect your name, email, or account information (except an email you optionally type into the issue form)
• Track your browsing history or viewing habits
• Collect device identifiers, install IDs, or IP addresses (our error-report server does not store IP addresses)
• Use cookies or tracking pixels
• Store any information that identifies you personally

Browser Permissions

The Extension requests the following browser permissions:

• Storage Permission: Used to cache episode data locally on your device
• Active Tab Permission: Used by the popup to detect which streaming platform you are currently viewing (Netflix, Crunchyroll, or Prime Video), allowing the Extension to provide platform-specific information
• Host Permissions: Required to read the DOM of supported streaming platforms and inject episode status badges

All permissions are used solely for the Extension's functionality. No permission is used for analytics, tracking, or data collection beyond what is necessary to display episode information.

What Information We Store Locally

The Extension stores the following data locally in your browser using chrome.storage.local:

• Episode Maps: Cached data from animefillerlist.com showing which episodes are canon, filler, or mixed (used to display colored badges)
• User Settings: Your preferences for how the Extension displays information
• Error-report bookkeeping: A small local record of which error reports were already sent in the last 24 hours (used only to avoid duplicates and enforce a daily limit)
• Cache Metadata: Timestamps to manage when cached data expires and is refreshed

This data is stored only on your device and is not synced to any cloud service or external server.

Third-Party Services

animefillerlist.com

The Extension fetches public episode data from animefillerlist.com. When a request is made:

• Only the anime show name (as a URL slug) is sent to their servers
• No personal data or account information is included
• The response (episode data) is cached locally and not stored on external servers

animefillerlist.com is a third-party service with its own privacy policy. We recommend reviewing their policy for details on how they handle requests.

Error-Report Server (Cloudflare Worker operated by the developer)

The only other network destination is a small server operated by the developer on Cloudflare Workers that receives the anonymous error reports described below.

No Analytics Services

The Extension does not use Google Analytics, Mixpanel, Segment, or any other third-party analytics service, and sends no usage pings or heartbeats.

Anonymous Error Reports

Purpose: to detect when the Extension stops working (for example when a streaming site or animefillerlist.com changes its layout) so it can be fixed. Reports are sent only when something breaks, never during normal use, and never when the Extension is disabled.

Events

• source_fetch_failed: fetching animefillerlist.com failed (network error or an HTTP error other than "not found")
• source_parse_empty: animefillerlist.com responded but no episodes could be read
• title_not_detected: a show page was open but no show title could be found
• rows_not_matched: show data loaded but no episode rows could be matched on the page
• badge_wiped_loop: the streaming site repeatedly removed the Extension's badges
• script_error: the Extension's own code threw an uncaught error (only the error type, file and line are sent, never the error message)

Exactly what is sent

• Extension version (e.g. 1.0.0)
• Event name (one of the above)
• Platform: netflix, prime, crunchyroll or unknown
• Page type: episode_list, title_page, player, other or n/a
• Date (day only, UTC)
• Show slug (e.g. one-piece), only for source_parse_empty and rows_not_matched
• HTTP status code (e.g. 503, or 0 for a network error), only for source_fetch_failed
• Selector group name (a fixed internal label such as netflix.titleCard), only for title_not_detected and rows_not_matched
• Script error type (e.g. TypeError), the Extension's own file name (e.g. content_script.js) and line number, only for script_error
• Coarse country (2-letter code, e.g. US): derived by Cloudflare from the request when it arrives; your IP address is not stored by us

What is never sent

No page URLs or paths, no page content or titles (other than the show slug above), no account or user information, and no install or device identifier. The server does not store IP addresses; it keeps only aggregate counts per day, event, platform, page type, slug, version, selector group, script error details and country. Error messages and stack traces are never sent. Each distinct report is sent at most once per 24 hours and at most 20 reports per day.

Retention

Aggregate counts are kept for 90 days and then deleted automatically. Aggregate counts are stored in the developer's Cloudflare database and reviewed by the developer; no emails are sent.

Stopping reports

Reports are not sent while the Extension is disabled, and stop entirely if you uninstall it.

Issue Reports You Submit

Purpose: to let you tell the developer about a problem (for example a wrong label or missing badges). An issue report is sent only when you press Submit in the popup's "Report an issue" form; nothing is sent when you merely open the form.

Exactly what is sent

• Issue type: Wrong label, Badges missing, Popup problem or Other
• Your message (optional, up to 1000 characters)
• Your reply-to email address (optional, up to 120 characters), used only to reply to your report
• Extension version, platform (Netflix, Prime Video, Crunchyroll or unknown) and page type
• The title of the show shown in the popup (up to 80 characters), if any
• Coarse country (2-letter code): derived by Cloudflare when the report arrives; your IP address is not stored

No page URL, no page content and no install or device identifier is sent. Please do not include sensitive personal information in the message.

Retention

Issue reports are stored in the developer's Cloudflare database and automatically deleted after 180 days. They are read only by the developer and are never sold or shared. To have a report deleted earlier, email the contact address below.

Data Sharing & Sale

We do not sell, trade, or share your data with any third party. Your information is never sold to advertisers, data brokers, or any other entity.

Chrome Web Store Limited Use Compliance

This Extension complies with the Chrome Web Store Limited Use Policy:

• No personal data is collected automatically; the anonymous error reports contain only the diagnostic fields listed above, and an issue report (including an optional email) is sent only when you submit it and is used only to investigate and reply
• No sensitive personal information (SSN, financial account numbers, etc.) is accessed
• Data is not used for purposes unrelated to providing the service (no ad targeting, no retargeting)
• No data is sold or shared with third parties (except animefillerlist.com for functional purpose and the developer-operated server for diagnostics and the issue reports you submit)

How to Delete Your Data

Method 1: Uninstall the Extension

All data stored by the Extension is automatically deleted when you uninstall it from your browser.

Method 2: Clear Extension Storage Manually

1. Right-click the Extension icon in your browser toolbar
2. Select "Manage extension"
3. Click "Storage" in the left sidebar
4. Click "Clear site data"

Changes to This Privacy Policy

We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated "Effective Date." Continued use of the Extension after updates constitutes your acceptance of the updated policy.

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