browserSettings.tlsVersionRestrictionConfig - Content

A {{WebExtAPIRef("types.BrowserSetting", "BrowserSetting")}} object used to read the highest and lowest versions of TLS supported by the browser.

The object has these properties:

minimum
- : The lowest TLS version supported by the browser. Valid values are TLSv1, TLSv1.1, TLSv1.2, TLSv1.3, and unknown.
maximum
- : The highest TLS version supported by the browser. Valid values are TLSv1, TLSv1.1, TLSv1.2, TLSv1.3, and unknown.

This is a read-only setting.

Examples

Get the highest TLS version supported by the browser:

browser.browserSettings.tlsVersionRestrictionConfig.maximum
  .get({})
  .then((result) => {
    console.log(`Highest TLS version supported: ${result}`);
  });