Meridock: World Clock & Timezone ConverterBrowser add-on for Firefox and Opera · published by Zydeno

Privacy Policy

Publisher: Zydeno · Effective 19 October 2026 · Contact: [email protected]

Short version

The extension stores data only in your browser (storage.local). Nothing is sent to Zydeno or anyone else. No analytics, no tracking, no account, no ads, no server.

What is stored, and where

The places you pin (city, zone and the label you give it), the order of the list, your settings (language, time format, work hours, theme, toolbar icon), the time you planned in the meeting planner and the zone you chose for an ambiguous abbreviation such as IST. All of it stays in the browser's local extension storage on your device. When you use "Convert to my time" on a page where the card cannot appear, the selected text (at most 300 characters) is saved in the same local extension storage so the popup can show the result. The popup shows it only within two minutes; the next such conversion replaces it, and it never leaves your browser.

Web pages

Meridock has no access to your websites. It does not read pages, does not keep any browsing history and does not change what you see. Only when you select text, right-click and choose "Convert to my time", the browser gives Meridock one-time access to that tab (activeTab). Meridock then reads the selected text and shows a small card next to it. The card is removed when you close it. The text is processed on your device and is never sent anywhere.

Where the times come from

Time zones and daylight saving time come from the time-zone data built into your browser. City names and coordinates are bundled inside the extension. Meridock makes no network requests at all.

Permissions and why

The extension does not ask for access to all websites, tabs, history, downloads or notifications.

Backup files

Settings → Backup → Export creates a JSON file with your places, labels and settings on your device. Nothing is uploaded. Import replaces the data in this browser after you confirm.

Deleting your data

Remove the places in the popup or in Settings, or remove the extension: the browser then deletes its storage.

Children

Meridock is a general productivity tool and is not directed at children. It collects no personal data from anyone.

Changes

If this policy changes, the new version will be published at this address with a new effective date.