This is the "Ma - Clean Tabs, Clean Mind" Privacy and Data Policy. It describes how we collect, use, and protect your information when you use the "Ma - Clean Tabs, Clean Mind" extension. By using the "Ma - Clean Tabs, Clean Mind" extension, you agree to the terms outlined in this policy. “Ma - Clean Tabs, Clean Mind” (hereby also referred to as “the extension”), by “fourhundred studios” (hereby also referred to as “the "Ma - Clean Tabs, Clean Mind" developer”, “the developer” or “the developers” or “the "Ma - Clean Tabs, Clean Mind" developers” or "we" or "us") is a browser extension designed to help users manage their open tabs and improve their browsing experience on the Google Chrome browser. It is distributed solely on the Google Chrome Web Store, but is not associated with Google in any way. The user's relationship with Google and the Google Chrome browser is independent of their relationship with the "Ma - Clean Tabs, Clean Mind" extension and the "Ma - Clean Tabs, Clean Mind" developers, and is governed by Google's own policies and terms of service. In this page: Summary for users, About how "Ma - Clean Tabs, Clean Mind" uses local data, How to remove your data, Legal and contact, Notice.
"Ma - Clean Tabs, Clean Mind" stores your saved tabs locally on your device. The extension has no server, no account system, or any other means of communication with the developers. The developers have no access to your data. Nothing ever leaves your computer and no personally identifiable information (PII) is collected. "Ma - Clean Tabs, Clean Mind" collects and stores data locally, no data is sent to or processed by the "Ma - Clean Tabs, Clean Mind" developers and we have no access to it. The data is and remains entirely within the user’s control. Users should be aware that any screenshots taken by the extension to generate tab preview images may contain personally identifiable information (PII) if such information is visible on the screen at the time of saving a tab. This data is stored locally on the user’s device and is not transmitted to or accessible by the "Ma - Clean Tabs, Clean Mind" developers in any way. However, users should be aware that anyone with access to their computer could potentially access this data. "Ma - Clean Tabs, Clean Mind" is distributed via the Chrome Web Store and makes use of Google Chrome’s local storage - both of these are managed by Google Chrome and are subject to Google’s own Privacy Policy and Terms of Service, which are independent of Ma and fourhundred studios.
"Ma - Clean Tabs, Clean Mind" only stores data when the user explicitly saves a tab.
Specifically, "Ma - Clean Tabs, Clean Mind" stores the following data, in the following format individually for each saved tab:
“id” - an id assigned to the saved page to enable the extension’s functionality.
“url” - the web address/url for the tab the user has chosen to save, allows the user to save and restore the tab. For Youtube specifically, the "Ma - Clean Tabs, Clean Mind" extension also will store the timestamp of the video in the saved tab, allowing the user to resume playing the video when they reopen the tab - this timestamp gets saved here as part of the url.
“title” - the title of the saved page.
“thumb” - whenever a tab is saved, the the extension automatically generates a screenshot of the chosen page and saves this screenshot straight to the local storage along with the rest of the data. This screenshot is used to display a visual preview of the tab in the "Ma - Clean Tabs, Clean Mind" Dashboard UI. This screenshot is 120x80px and base64 encoded, it captures whatever is visible on screen in that tab, so if a user has entered personal data, there is a risk it will have been captured and stored locally on their computer. To be clear, this entire process happens locally, the data is never transmitted anywhere and therefore cannot be accessed by the "Ma - Clean Tabs, Clean Mind" developers in any way, but users should be aware that anyone who has access to their computer could potentially have access to this data too.
“savedAt” - the exact time and date at which the url was stored - used for functionality such as: sorting the tabs, and displaying their time and date in the "Ma - Clean Tabs, Clean Mind" Dashboard UI.
“category” - the category of the tab, this allows tabs to be sorted into different categories in the "Ma - Clean Tabs, Clean Mind" Dashboard UI. Currently the only option and only category is “temporary”.
An example of the data format with example data:
"id": "a3f8c2d1-...",
"url": "https://example.com/page",
"title": "Page Title Here",
"thumb": "data:image/jpeg;base64,/9j/4AAQ...",
"savedAt": "2026-05-06T10:30:00.000Z",
"category": "temporary"
All of this data is stored using chrome.storage.local, - meaning it is stored on the user’s device, in their chosen Google Chrome storage folder (usually: ~/Library/Application Support/Google/Chrome/Default/Local Extension Settings/
When a user restores a saved tab from the dashboard (by clicking on its card in the "Ma - Clean Tabs, Clean Mind" Dashboard UI), its associated data (the data outlined in the "About how "Ma - Clean Tabs, Clean Mind" uses local data" section) is immediately and permanently deleted from local storage - and therefore immediately and permanently deleted in its entirety. To be clear, none of this data is held by the developers, and none of it can be accessed by us. All data (saved urls, preview images etc.) is stored on your device, under your control, meaning we have no access to it and therefore cannot help you remove it. You can clear/delete all of your data at any time yourself via the following methods: 1. By deleting the associated files in your local chrome storage folder on your device (usually ~/Library/Application Support/Google/Chrome/Default/Local Extension Settings/<extension-id>/ for Mac or C:\Users\<username>\AppData\Local\Google\Chrome\User Data\Default\Local Extension Settings\<extension-id>\ for windows). 2. You can also delete all of your data along with the extension itself by simply uninstalling the "Ma - Clean Tabs, Clean Mind" extension. Please note, both of these two methods will permanently delete all of your stored tabs.
The "Ma - Clean Tabs, Clean Mind" extension is operated and managed from the United Kingdom and is subject to UK GDPR. However, as the "Ma - Clean Tabs, Clean Mind" extension processes no personal data on behalf of the developer and the data remains solely in control of the user, the developer does not act as data controller under UK GDPR. This does not affect the data relationship between the user and Google. For any privacy concerns specifically related to the "Ma - Clean Tabs, Clean Mind" extension, including UK/EU GDPR requests, you can contact us here: privacyandlegal@fourhundredstudios.com (this email address is only for privacy, data, terms&conditions and legal enquiries related to the "Ma - Clean Tabs, Clean Mind" extension - please note we are unable to help with anything related to Google, or the Google Chrome browser, or the Google Chrome Web Store).
This page can be updated at any time, users should check this page to see any potential changes. Last updated: 8th May 2026.