Table of Content
Sec-CH-UA-Full-Version is a Client Hints header in HTTP transactions. Its main purpose is to provide detailed version information about the user's browser, beyond what
Sec-CH-UA often provides. Thus, this auxiliary to the
Sec-CH-UA allows more specific functions which require particular browser versions to be made use of, enhancing user experience and making operations more efficient.
In the syntax, the
<product> is the browser's product name and
<version> is the full version of the user's browser.
There are two main components or directives for the
<product>- The product token of the user agent's browser.
<version>- The full version of the user's browser.
Using Chrome as an example, a typical
Sec-CH-UA-Full-Version header would look something like this:
In this instance, "Chrome" is the product and "92.0.4515.131" is the full version.
How to modify Sec-CH-UA-Full-Version header
ModHeader is a Chrome extensions that can modify HTTP headers. You can use it to change the
Sec-CH-UA-Full-Version header, which can be useful for testing how your website or web application behaves with different browser versions.
To modify the
Sec-CH-UA-Full-Version with ModHeader, follow these steps:
- Install and open the ModHeader extension.
- Click "Add" to create a new header modification.
- In the "Name" field, input
- In the "Value" field, input your desired browser product and version, for example, "Firefox;68.0.2".
- Now, all your browsing in Chrome will send the modified
Remember, this change only affects the HTTP headers sent from your browser and does not actually change your browser version.