Privacy Policy — Upside Down

Chrome extension · Last updated: 23 June 2026

1. What this extension does

Upside Down is a decorative extension. When you switch it on for a tab, it draws a visual overlay on top of the page you are viewing — a darker, foggier appearance with floating particles. Its single purpose is to change how a web page looks, on the tabs you choose, while you choose. It is off by default and only does anything after you turn it on.

2. Information we do not collect

We want to be explicit, because this is the part reviewers and users care about most. Upside Down does not collect, record, read, store, or transmit any of the following:

• Personally identifiable information (name, email, address, phone, etc.)
• Authentication information, passwords, or credentials
• Financial or payment information
• Health information
• Personal communications (email, messages, chats)
• Location data
• Web browsing history or the list of sites you visit
• The content, text, images, or form data of the pages you view
• User activity such as clicks, scrolls, keystrokes, or mouse movement

The extension never sends information to us or to any third party, because it makes no network requests at all.

3. The only data we store, and where

Upside Down saves two preferences so your settings persist between sessions:

• Your floating-matter level (0–100)
• Your darkness level (0–100)

These two numbers are stored on your own device using Chrome's local storage (chrome.storage.local). They never leave your device, are not transmitted anywhere, and are not accessible to the developer or anyone else. They contain no personal information.

4. How the extension interacts with web pages

To draw the overlay, the extension inserts its own visual elements on top of the page you are viewing and applies a color effect over it. It does not read, copy, scrape, analyze, or transmit the contents of the page. The overlay ignores your clicks and input, which pass straight through to the underlying page. Nothing about the page or your activity on it is recorded.

5. Your consent and control

The effect is entirely user-initiated:

• It is off by default on every tab.
• It only activates when you click the toolbar button to turn it on.
• You can turn it off at any time from the same button.
• It applies per tab, so other tabs are unaffected.
• You can remove the extension at any time, which deletes its local settings along with it.

Because the extension stores only local display settings and collects no personal or browsing data, there is no personal data collection for you to opt in or out of.

6. Permissions and why they exist

• Access to websites (host permission): required so the overlay can be drawn on whatever site you choose to apply it to. Used only to add the extension's own visual layer; no page data is read or sent.
• Scripting: used to apply the effect to a tab that was already open before the extension was installed or updated, so your toggle and slider changes take effect without forcing a page reload. Triggered only by your action in the popup.
• Storage: used to save the two display settings locally, as described in section 3.

7. Data sharing and selling

We do not share, sell, rent, or transfer any user data to any third party, because we do not collect any user data. We do not use any data to determine creditworthiness or for lending purposes.

8. Limited Use

Upside Down does not use Google APIs and does not access Google user data. To the extent any user data is handled by the extension, its use complies with the Chrome Web Store User Data Policy, including the Limited Use requirements.

9. Data retention

Your two local settings remain on your device until you change them, clear your browser's extension data, or uninstall the extension. We hold no data on any server, because the extension has no server and makes no network calls.

10. Children's privacy

The extension is a general-audience visual tool. It does not collect data from anyone, including children.

11. Security

Since no data is collected or transmitted, there is no data in transit or on a server to be exposed. The only stored values are local display settings managed by your own browser.

12. Changes to this policy

If this policy changes, the updated version will be posted at this same URL with a new "last updated" date.

13. Contact

Questions about this policy or the extension: contact@strangerthingsintrocreator.com