I will explain briefly which Google Chrome Extensions I use to optimize my (and your) web browsing experience.
These extensions should work on all Chromium based browsers including Opera.
Blocks most of the advertisment on sites
Google Data Saver
For slow connections or days when you are downloading much and want to keep your network usage low
Disabled Adobe Flash objects, but re-enable them by clicking on them. Saves CPU and memory usage
Blocks spyware and social media addins. Security improvement
Tried to use HTTPS. Security improvement