Glyde

Open Source and Trademarks

Last updated 14 October 2026

Glyde is built on Mozilla open source technology. It is not officially associated with Mozilla or its products.

1. What Glyde is built on

Glyde is based on the open source code behind Firefox, including the Gecko browser engine. It does not use Chromium. Mozilla publishes that code under the Mozilla Public License 2.0 and other licences.

2. How Glyde is licensed

3. The Szimon Engine

The Szimon Engine and Szimon assistant are separate from the browser and are not open source at this time. We may release them in future, and will say so here if we do.

4. Trademarks

Glyde does not use Mozilla's logos or names as its own branding. We say in words that Glyde is built on Mozilla technology because it is true, and because the people who made that technology deserve credit.

5. Other open source software

Glyde and this website may use other open source software. A full list of components and their licences will ship with each release in the program's licence notices.

6. Contact

Licence or trademark questions: legal@teamcirkle.co.uk.