MuxTranslator is a browser extension that translates web pages by sending text to a
translation API of your choice. This policy explains what data leaves your browser, where
it goes, and what is stored locally.
Data sent to external services
When you initiate a translation, MuxTranslator extracts text from the current page and
sends it to the API endpoint you have configured in the extension settings (for example,
an OpenAI-compatible endpoint, a local Ollama instance, or Google Translate). This is the
only outbound network request the extension makes.
What is sent: the text content of the page (or selected text), your
chosen target language, and your configured API key as a request header.
Where it goes: exclusively to the URL you enter in the settings.
MuxTranslator does not route data through any intermediary server operated by this
extension's developer.
Third-party privacy policies: the handling of that data is governed
by the privacy policy of the API provider you choose (e.g., OpenAI, Google, or your
own self-hosted service).
Data stored locally
MuxTranslator stores the following data locally in your browser using Firefox's
storage.local API and IndexedDB:
Extension settings — provider names, base URLs, API keys, selected
models, site rules, and language preferences. This data never leaves your device
except as part of the API requests described above.
Translation cache — previously translated text segments are cached
in IndexedDB to avoid redundant API calls. Cached data stays on your device and can
be cleared at any time from the settings page.
Token usage statistics — cumulative prompt and completion token
counts per provider, stored locally for your reference. These are never transmitted
anywhere.
Data we do not collect
We operate no analytics, telemetry, or crash-reporting service.
We do not collect browsing history, page URLs, or any personal information.
We have no backend server and receive no data from users of this extension.
API keys
Your API keys are stored only in storage.local — a sandboxed storage area
accessible only to this extension. Keys are transmitted solely in the Authorization
header of requests to the provider URL you specify. They are never logged, shared, or
sent to any other destination.
Children's privacy
This extension is not directed at children under the age of 13 and does not knowingly
collect any information from them.
Changes to this policy
If this policy changes materially, the "Last updated" date above will be revised. We
encourage you to review this page periodically.
Contact
Questions or concerns can be directed to the extension's repository issue tracker or to
the developer email listed on the Firefox Add-ons store page.