Chrome Extension Privacy Policy

日本語版 (Japanese)

This Privacy Policy outlines the principles that Holoz Co., Ltd. ("we", "us") follows when handling personal information or related data collected through the use of the Google Chrome extension(s) we provide (each, an "Extension").

1. Policy Overview

We recognize the importance of personal information and are committed to protecting it. We will comply with applicable laws and regulations to properly collect, use, and manage personal information.

2. Scope of Application

This Privacy Policy applies to the Extensions we publish (including, for example, Japanese Era to Gregorian (Auto) and other Extensions in the same product family).

3. Permissions Used

Depending on the Extension, the following Chrome permissions may be used as defined in each Extension's manifest.json:

• storage (typically chrome.storage.sync): To save user preferences (such as on/off toggles, display options, and optional exclusion lists). Synced data is processed by Google according to your Chrome / Google account settings. We do not operate a server that receives copies of this data from the Extension.
• contextMenus (where present): To add optional menu items-for example, to act only on the user's current text selection.

Some Extensions inject content scripts on web pages so features can run in the page (for example, transforming visible text). That processing runs locally in your browser. We do not receive the text of pages you visit, your browsing history, or the output of such conversions.

4. Collection and Use of Personal Information

We do not transmit personally identifiable information from the Extension to our own external servers. User preferences are stored using Chrome's extension storage APIs (for example chrome.storage.sync), not by our proprietary backend.

4.1 Method of Collection

Settings are entered through each Extension's user interface (for example, a popup or options page) and saved via Chrome's storage APIs.

4.2 Purpose of Use

Saved settings restore preferences on later use and improve convenience. They are not sold to third parties or used for advertising profiles by us.

4.3 Retention

Data retained by Chrome's storage APIs remains until you remove the Extension or clear extension data in Chrome, subject to Google's policies for synced data.

4.4 Consent

By installing an Extension, you are deemed to have agreed to this Privacy Policy.

5. Cookies

The Extensions do not read website cookies for tracking purposes, nor do they set or use proprietary cookies for cross-site tracking.

6. Management of Personal Information

We implement the following principles:

6.1 Ensuring Data Accuracy

We strive to describe data practices accurately in this policy and in each Extension's store listing.

6.2 Security Controls

Because preferences are not sent to our servers, we do not centrally store that configuration data.

6.3 Third-Party Disclosure

We will not sell or disclose personal information obtained through the Extensions to third parties. If practices change materially, this policy will be updated.

7. Analytics and Advertising

The Extensions do not embed third-party analytics or advertising SDKs for the purpose of tracking users across sites.

8. Contact Information

For inquiries regarding the Extensions or the handling of personal information, please use our contact page.

Contact us here