Cookie policy
Material-UI SAS a Simplified Joint Stock Company (hereinafter "MUI") uses cookies and other tracking technologies on its website accessible at mui.com, including the pages dedicated to the MUI Store online store, the technical documentation and the client account and console areas (hereinafter the “Website”), in order to ensure its operation, to improve the experience of the Website users (hereinafter the “Users”), to measure audience and to strengthen security.
This cookie policy (hereinafter the “Policy”) is intended to inform the Website User of the manner in which their personal data are collected through the cookies placed on the Website.
This Policy supplements MUI’s privacy policy, accessible at https://mui.com/legal/privacy/ , which describes all of the processing of personal data implemented by MUI in the course of its business.
ARTICLE 1. Definition
A cookie is a small text file placed on the device (computer, smartphone, tablet) when viewing content, a website, an advertisement or when using an application.
It allows, in particular, its issuer to identify a device, to store certain information (for example, to track User activity, to remember their preferences) and to facilitate browsing. Certain cookies are essential and necessary for the use of the Website, others make it possible to optimise and personalise the online content displayed, and others make it possible to display advertisements.
Cookies do not directly identify a User; they only make it possible to identify a browser or a device. Certain trackers used on the Website nevertheless make it possible to identify the professional entity from which a visit originates.
The use of cookies may make it possible to link browsing data to a User’s profile, including when they use several devices, in order to enable the tracking of a User’s journey, regardless of the medium or device used.
The tracking technologies implemented may also include mechanisms other than cookies, such as web logs, web beacons or technical identifiers.
These mechanisms make it possible to collect, directly or indirectly, certain information relating to the use of the Website and the services, in particular in order to ensure their proper operation, to measure traffic, to analyse User interactions or to improve the browsing experience.
ARTICLE 2. Data collected via cookies and web logs
When interacting with MUI’s Website, certain information may be collected automatically, in particular:
- The IP address and the domain name;
- The browser type, the operating system and certain technical identifiers;
- The pages viewed, the visit timestamps and the browsing paths;
- An approximate location (city or region), in particular from the IP address.
Depending on the cookies accepted and refused, this information makes it possible in particular to ensure the proper operation of the Website, to improve its performance and to optimise browsing.
For further information on all personal data processed by MUI, their purposes, their legal bases and their retention periods, the User is invited to consult the privacy policy accessible at https://mui.com/legal/privacy/ .
ARTICLE 3. Types of cookies used
MUI may use different types of cookies, in particular:
- Strictly necessary Cookies: essential for the operation of the Website, for access to certain functionalities and for the security of the Website. These cookies are exempt from consent.
- Audience measurement and performance Cookies: intended to analyse the use of the Website, to measure audience and to improve the performance of the services. Their placement is subject to the prior consent of the User.
- Personalisation Cookies: intended to adapt the display or certain functionalities according to the User's preferences (language, region, display mode). Where they are not strictly necessary for the operation of the Website, their placement is subject to prior consent.
- Interaction Cookies: placed by the chat widget and by the web push notification service available on the online store, in order to enable the exchange of messages with MUI and the delivery of notifications to which the User has subscribed. Their placement is subject to prior consent.
- Business identification and prospecting Cookies: placed by a third-party provider, these cookies make it possible to identify the professional entity from which a visit to the Website originates and to support MUI's commercial activity. Their placement is subject to prior consent. MUI uses no advertising pixel and no social network widget placing cookies, and does not carry out any advertising campaign measurement.
MUI may use:
- session cookies, deleted upon closing the browser;
- persistent cookies, retained until the User deletes them or until the expiry of their lifetime.
Cookies that are not strictly necessary (in particular audience measurement, personalisation and advertising cookies) are placed only after the User’s consent has been obtained. Strictly necessary cookies are exempt from consent.
MUI may also use web beacons in certain electronic communications in order to determine, for example, whether a message has been opened or whether an interaction has taken place. These elements make it possible to improve communications and to optimise the experience.
ARTICLE 4. Cookie preferences management
Upon the first visit to the Website, a cookie banner informs the User of the presence of cookies and invites them to indicate their choice.
This banner allows:
- Accepting all or some of the cookies;
- Refusing all or some of the cookies;
- Refusing all cookies that are not strictly necessary.
Cookie preferences may be set and modified at any time via the cookie preferences centre available on the Website. It is also possible to manage preferences via the following link: https:///mui.com/#cookie-preferences .
Refusal of non-essential cookies does not prevent access to the Website, but may limit certain functionalities (statistics, personalisation).
It is also possible to configure the browser in order to refuse all or some of the cookies. As each browser has specific settings, the “Help” menu of the relevant browser should be consulted. Blocking or refusing certain cookies may result in a degradation of the operation of the Website or prevent access to certain functionalities.
ARTICLE 5. Cookies and trackers: purposes, consent, lifetime and retention
The cookies and other trackers used on the Website pursue the purposes described below. For each purpose, the relevant cookie, the lifetime of the cookie, the consent collection method and the retention period of the data collected are specified:
| Purposes | Relevant cookie | Cookie lifetime | Consent | Retention period of the data collected |
|---|---|---|---|---|
| Ensuring the operation of the Website, authentication and security | Online store. Cookies allowing the shopping basket and the order in progress to be retained, the browsing session on the store to be maintained, and the browser's acceptance of cookies to be checked.
Payment. Cookies placed at checkout by the payment providers, allowing the payment session to be maintained, fraud to be prevented and the payment page to be routed and displayed in the appropriate language. Client account and console. Cookies allowing the User to remain signed in to their account and any sign-in error to be handled. Signed-in users and MUI staff. Cookies allowing the signed-in session to be maintained on the online store, two-factor authentication to be operated and, for MUI staff only, an account to be switched for support purposes. The technical names of these cookies are set out in the detailed list accessible at [https://mui.com/legal/subprocessors/](https://mui.com/legal/subprocessors/) . |
Session for the store and staff cookies;
2 days for wp_woocommerce_session; 30 minutes to 1 year for the payment providers, and up to 3 years for certain PayPal cookies; 7 days for the session token; 5 minutes for ba_error_redirect; 30 days for the two-factor authentication cookie. |
No (exempt) | Duration necessary for the achievement of the purpose |
| Storing the User’s cookie consent preferences | Consent preferences. An item stored by MUI in the browser's local storage, recording the choice expressed by the User in the consent interface, so that the banner is not displayed again on each visit and the choice is honoured. | A lifetime of six (6) months must be configured, in line with the CNIL recommendation | No (exempt) | 6 months |
| Measuring audience, analysing browsing, improving the Website and the User experience | Website and documentation audience measurement (Google Analytics 4 and Google Tag Manager). Cookies allowing visits to be counted, a returning visitor to be distinguished from a new one and browsing paths to be analysed, in order to improve the content and the ergonomics of the Website: _ga, ga*.
Online store traffic statistics (Jetpack, by Automattic). Cookies allowing visits to the store to be counted and the pages viewed to be analysed: tk_ai, tk_lr, tk_or, tk_qs. Product analytics (PostHog). Cookie allowing the use of the features to be measured, browsing sessions to be reconstructed and malfunctions to be identified: ph_<token>_posthog. |
_ga and _ga_*: 2 years as currently configured.
tk_*: session to 1 year. ph_<token>_posthog: default lifetime of the SDK. |
Yes | 25 months maximum |
| Personalisation of the display and functionalities of the Website | Documentation display preferences (MUI). Cookies and local storage items recording the choices expressed by the User when reading the documentation, namely the code language and formatting, the colour palette, light or dark mode and the state of the side navigation panel: codeStyling, codeVariant, paletteColors, mui-theme-mode, sidebar_state, _docs_variant_pref:, _docs_transform_pref:.
Documentation search (Algolia). Local storage items recording recent searches so that they may be suggested again: algolia-client-js-*. Online store (WordPress and WooCommerce). Cookies recording the products recently viewed and, for signed-in Users, their store interface preferences: woocommerce_recently_viewed, wp-settings-<UID>, wp-settings-time-<UID>. |
1 year for codeStyling, codeVariant, paletteColors, mui-theme-mode and the wp-settings cookies;
7 days for sidebar_state; session for woocommerce_recently_viewed; |
Yes | 25 months maximum |
| Operating the chat widget and the web push notifications of the online store | Chat widget and web push notifications (Brevo). Cookies allowing a conversation started with MUI through the chat widget on the online store to be maintained across pages and visits, and the delivery of the notifications to which the User has subscribed: brevo_session, brevo_visitor. | Session to 1 year. | Yes | 25 months maximum |
| Identifying the professional entities visiting the Website and business prospecting | Identification of visiting companies and business prospecting (Apollo.io). A cookie and local storage items allowing the visits of a same browser to be linked together, the User's consent to that tracking to be recorded and the events to be queued before transmission, so that MUI may determine which company a visit originates from and address it commercial communications: apolloAnonId, *_canTrack, *_eventQueue. A technical cookie, __cf_bm, is also placed by the provider's infrastructure on its tracking domain in order to distinguish human traffic from automated traffic.
MUI uses no advertising pixel and no social network widget placing cookies. |
Less than one day for __cf_bm;
a lifetime not exceeding thirteen months must be configured. |
Yes | 25 months maximum |
The list of the third-party providers placing cookies on the Website, together with a link to their respective privacy policies, is available at https://mui.com/legal/subprocessors/ and is kept up to date.
ARTICLE 6. Web browser settings
If browsing is carried out on Google Chrome, cookie settings are accessible via the following link: https://support.google.com/chrome/answer/95647?hl=fr .
If browsing is carried out on Safari, cookie settings are accessible via the following link: https://support.apple.com/fr-fr/guide/safari/sfri11471/mac . If browsing is carried out on Mozilla Firefox, cookie settings are accessible via the following link: https://support.mozilla.org/fr/kb/options-preferences-parametres-firefox . If browsing is carried out on Microsoft Edge or Internet Explorer, cookie settings are accessible via the following link: https://support.microsoft.com/fr-fr/windows/supprimer-et-gérer-les-cookies-168dab11-0753-043d-7c16-ede5947fc64d .
ARTICLE 7. Rights of Users
In accordance with the GDPR, the User has a right of access, rectification, erasure, restriction, portability and objection with respect to the personal data collected through cookies. The User also has the right to give directions regarding the fate of their data after their death.
To exercise these rights, the User may send their request by email to contact@mui.com or by postal mail to MUI’s address. MUI undertakes to respond within a period of one (1) month from receipt of the request, which period may be extended by two (2) months in the event of complexity.
Without prejudice to any other administrative or judicial remedy, the User has the right to lodge a complaint with the competent supervisory authority for the protection of personal data. Given the international dimension of MUI’s business, the competent authorities may in particular be:
- for France and the European Union, the Commission nationale de l’informatique et des libertés (CNIL), 3 place de Fontenoy, TSA 80715, 75334 Paris Cedex 07, https://www.cnil.fr ;
- for the United Kingdom, the Information Commissioner’s Office (ICO), https://ico.org.uk ;
- for Switzerland, the Federal Data Protection and Information Commissioner (FDPIC), https://www.edoeb.admin.ch ;
- for the United States of America, State attorneys general may be called upon; for the State of California, jurisdiction is shared with the California Privacy Protection Agency (CPPA), https://cppa.ca.gov .
MUI nevertheless favours, wherever possible, prior discussion so as to allow the amicable resolution of any difficulty relating to the processing of Personal Data.
ARTICLE 8. Amendment of this Policy
MUI reserves the right to amend this Policy at any time in order to bring it into compliance with applicable law or with the evolution of its practices. Any substantial amendment shall be brought to the User’s attention by any appropriate means, and in particular by way of an information banner on the Website.
The User is recommended to consult this Policy regularly in order to take note of any amendments.
Last update: October 27th, 2026.