Another Good news if you are a Firefox user - Firefox 67, which is planned to be released in May 2019, will have a few exciting features

1. Block cryptocurrency miners
2. Block fingerprinting
3. Mute videos autoplaying.

Cryptominers not only use the CPU’s resources to mine for cryptocurrency but also affects the computer’s performance in the long run. The entire system becomes slow and operations get delayed

Fingerprinting is a technique that can create user profiles for tracking purposes using the information that the connecting device, scripts (if permitted), and browser provide.

https://www.hackread.com/firefox-offers-fingerprinting-cryptomining-protection/