Updated: 3 October 2026. YTSubSearcher finds public videos from channels in the subscriptions of the YouTube account selected by the user. The extension uses YouTube Data API Services.

Access to data
When you click “Sign in with Google”, Google opens its own sign-in and consent window. The extension receives OAuth tokens, a technical Google account identifier, the list of subscriptions, the YouTube channel name and public video information: ID, title, channel, publication date, duration and thumbnail URL. The extension does not receive your Google password.
YouTube permission is used only for reading data. The extension does not subscribe to channels, publish videos or modify YouTube data. The search date and filter settings are processed locally.

Data sharing
Authorization requests are sent to Google, requests for subscriptions and video information are sent to the YouTube Data API, and thumbnails are loaded from i.ytimg.com. With these requests, Google receives standard network information, including your IP address. Data is not sent to the developer’s server. The extension contains no advertising or analytics, and user data is not sold.

Local storage
OAuth tokens and the technical account identifier are saved in the extension’s local storage within your Firefox profile, so you do not have to sign in again for every search. The extension does not synchronize them between devices. Do not publish or share a backup of your browser profile.
Cached channel metadata, search settings and results are stored locally. The cache remains current for 6 hours after a channel scan finishes; current search results are retained for up to 6 hours after the search finishes or the last results are received. Expired records are deleted when the extension starts, before a search and approximately once a minute while Firefox is running. If Firefox is closed or the device is asleep, deletion takes place when operation resumes. Changing the filter does not extend the retention of earlier results.

Deleting data and revoking access
“Clear” clears the date and results. “Clear cache” deletes the local cache and results without signing out of Google. “Sign out” deletes local tokens, the account identifier, the cache, settings and results. These actions do not delete subscriptions or videos on YouTube.
To revoke access granted through Google, remove the app’s permissions in your Google account’s connection settings. You may need to sign in again afterwards. Uninstalling the extension deletes its local storage.

Use of Google data
Use and transfer of information obtained from Google APIs are limited to finding videos from subscriptions and comply with the Google API Services User Data Policy, including its Limited Use requirements. Data is not used for advertising, assessing creditworthiness or training general-purpose artificial intelligence models.

YouTube and short videos
YouTube is the source of videos and metadata. The “Possible Shorts” group means videos lasting no more than 3 minutes; it does not confirm that they are Shorts. The extension does not fetch YouTube pages to determine the format automatically and does not embed a video player.
By using YouTube features in the extension, you also agree to the YouTube Terms of Service. Information about how Google handles data is available in the Google Privacy Policy.