Cookies are pieces of data stored by web browsers that websites and applications can use to remember a web browser from one request to the next. There are first-party and third-party cookies.

Third-party cookies are needed to remember your authentication details when you use a cloud storage platform with draw.io so you can save your diagram data.

• First-party cookies are created by the web server at the address shown in browser’s address bar.
• Third-party cookies are created when content is loaded from domains other than the one shown in the address bar, such as when you load a diagram saved in Google Drive in draw.io.

Configure your browser to allow third-party cookies

Follow the instructions below for your specific browser to enable third-party cookies.

Enable third-party cookies in Chrome

1. Click on the three vertical dots to open the Chrome menu, then on Settings.
2. In the menu on the left, select Privacy and Security.
3. Click Site settings in the Privacy and Security section.
4. Select Cookies and site data.
5. Ensure the toggle switch for Block third-party cookies is not enabled.
   

Alternatively, in the Allow section, click on Add, enter *.diagrams.net in the Site field, then click Add.

Enable third-party cookies in Firefox

1. Click on the three horizontal bars to open the Firefox menu, then select Options (Windows) or Preferences (macOS).
2. Scroll down to the History section.
3. Ensure the drop dropdown list is set to Firefox will: Remember History.
   

Enable third-party cookies in Opera

1. In the left panel, click on the Settings gear icon.
2. Select Site Settings, then click on Cookies and site data.
3. Ensure the toggle switch to Allow sites to save and read cookie data(recommended) is enabled.
   

Alternatively, in the Allow section, click on Add, enter *.diagrams.net in the Site field, then click Add.

Enable third-party cookies in Internet Explorer

1. Click on the gear icon in the address bar to open the menu in Internet Explorer, then select Internet Options.
2. Click on the Privacy tab, then click on Sites.
3. Enter [*].diagrams.net in the Address of website field, then click Allow, then OK to close the Per Site Privacy Actions dialog.
4. Click OK to close the Internet Options dialog.
   

Enable third-party cookies in Safari

1. In the menu, click Safari > Preferences.
2. Select the Privacy tab.
3. Ensure that the Cookies and website data checkbox is not selected.
   

Note: In older versions of Safari, for the Block cookies option, select Never.

Enable third-party cookies in Microsoft Edge

1. Click on the three horizontal dots in the address bar, then select Settings from the Microsoft Edge menu.
2. Select Privacy and security in the left menu.
3. Ensure the Cookies dropdown list is set to Don’t block cookies.