[NOTE] This extension does not run properly in some web pages. Ill try to fix it.
You can Follow the below Step By Step procedure to install the from Helvetica to San Francisco Chrome Extension to your Chrome Web browser.
It is the from Helvetica to San Francisco Chrome extension download link you can download and install Chrome Browser.
Replaces Helvetica Neue font family from CSS font stack to use next fallback.
Inserts CSS to optimize page text.
A Chrome extension to turn off website text anti-aliasing. http://usabilitypost.com/2012/11/05/stop-fixing-font-smoothing/
Changes all the UI font to a user-given font.
Disables anti-aliasing.
Enable Kerning & Grayscale Anti-Aliasing for chrome on macOS
Adds configurable font anti-aliasing to all webpages you visit.