Privacy Policy
Last updated: 2026-10-22
Scope
This Privacy Policy applies to browser extensions and related services provided by marusin tools.
marusin tools is a collection of browser tools operated by Ori no Marusin Co., Ltd. This policy is maintained separately from the privacy policy for the main Ori no Marusin website.
Information Processed by Our Extensions
Depending on their features, marusin tools extensions may process information within the browser, including page URLs, identifiers, titles, displayed content, image information, user actions, and preferences. The specific information handled varies by extension.
We do not collect this data on developer-operated servers through our extensions, nor do we provide a mechanism for the developer to access users' names, email addresses, or conversation content.
Settings Stored in the Browser
Extensions may store preferences in the user's browser, including display language, send-key settings, appearance options, and filter preferences.
Colors for ChatGPT stores settings such as colors, display dimensions, and per-chat visibility preferences associated with ChatGPT conversation IDs in chrome.storage.local. It also stores language preferences, the extension's global enabled state, and shared default settings.
These settings are used to maintain the extension's functionality and are not transmitted to our servers.
Chat Information Processed by Colors for ChatGPT
Colors for ChatGPT obtains a conversation ID from the current ChatGPT page URL and reads the chat title displayed on the page to show it in the extension's visual interface.
Retrieved chat titles are temporarily retained in page memory for display purposes. The extension does not provide a feature that persistently saves chat titles in its settings.
When a user changes a chat title through Colors for ChatGPT, the extension performs the change through ChatGPT's native user interface. The resulting processing by ChatGPT is governed by the terms and privacy policy of the service provider.
Colors for ChatGPT does not include functionality to collect or store conversation bodies or message composer contents.
External Data Transmission
marusin tools extensions do not collect settings, page content, conversation content, image information, or similar data on developer-operated servers. We do not use advertising trackers or independent usage analytics.
Our extensions generally perform the processing required for their features within the user's browser. However, actions performed through a supported service, as well as image retrieval or downloads, may involve normal communication with the relevant service or content provider.
Such communication is distinct from sending data to servers operated by marusin tools.
Third-Party Sharing and Use of Data
We do not receive user data through our extensions for sale, advertising, behavioral tracking, or marketing analytics.
Our extensions use information only to the extent necessary to provide the disclosed features and related functionality.
Actions performed on third-party services or websites are also subject to the respective providers' terms and privacy policies.
Data Retention and Deletion
Settings stored in the browser may remain until changed or deleted by the user, or until the relevant storage is removed, including through extension uninstallation.
Colors for ChatGPT temporarily holds retrieved chat titles in page memory while the page is running. This temporary information is discarded when the page is reloaded or closed. Per-chat appearance preferences are stored separately in browser storage.
The "Reset appearance to defaults" feature in Colors for ChatGPT does not delete all stored data.
To remove an extension's stored data, uninstall the extension from your browser's extension management page. Removal of extension storage is subject to the browser's behavior.
Chat titles changed in ChatGPT are managed by ChatGPT and will not revert when the extension is uninstalled.
Extension Permissions
Our extensions use browser permissions only as necessary to provide their disclosed features.
Depending on the extension, this may include adjusting input behavior on supported pages, inspecting and saving image information, or customizing the appearance of ChatGPT pages and storing related settings.
For details about permissions used by a particular extension, please refer to its store listing or public documentation.
Chrome Web Store and Microsoft Edge Add-ons
marusin tools extensions may be distributed through the Chrome Web Store or Microsoft Edge Add-ons.
Use of these stores, including installation and reviews, is subject to the terms and privacy policies of Google or Microsoft.
marusin tools complies with the Chrome Web Store User Data Policy, including the Limited Use requirements. User data accessed through our extensions is used only as necessary to provide the disclosed functionality.
Changes to This Policy
We may revise this policy to reflect new features, changes to store requirements, or updates to our operating practices.
When changes are made, we will update the content and last updated date of this page.
Contact
For questions or feedback, please contact marusin tools support.
