Visited Link Custom Color

Hello Eric,
Thank you for reaching AVG Support Community.
I sorry to inform you that Some extensions are designed to work on chrome browser, it may not support/work on AVG Secure Browser. However, you can try to add it on AVG Secure Browser by following steps.
1)Search the extension name in AVG Secure Browser and Open the extension site.
2) Click on "Add", then check whether it works on AVG Secure Browser.
If the AVG Secure Browser, shows pop-up notification from extension guard states "Extension blocked", then those extensions might compromise your security on the browser, so make sure whether if it is a safe extension. If yes, select "I understand the risk" and click on install anyway. 
If you wish to turn off the extension, Open AVG Secure Browser> click on the top right 3 dots>  Extensions > Here you can turn off the unwanted extensions in your browser. 
Thank you.

Hello Eric,
Thank you for reaching AVG Support Community.
I sorry to inform you that Some extensions are designed to work on chrome browser, it may not support/work on AVG Secure Browser. However, you can try to add it on AVG Secure Browser by following steps.
1)Search the extension name in AVG Secure Browser and Open the extension site.
2) Click on "Add", then check whether it works on AVG Secure Browser.
If the AVG Secure Browser, shows pop-up notification from extension guard states "Extension blocked", then those extensions might compromise your security on the browser, so make sure whether if it is a safe extension. If yes, select "I understand the risk" and click on install anyway. 
If you wish to turn off the extension, Open AVG Secure Browser> click on the top right 3 dots>  Extensions > Here you can turn off the unwanted extensions in your browser. 
Thank you.

I want visited links to be RED. 

Chrome has an extension called Stylish which uses the script :

A:visited { color: red }

Is there any equivalent extension or settings that will achieve this in the AVG browser?